To see the other types of publications on this topic, follow the link: Building envelope.
Journal articles on the topic 'Building envelope'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 journal articles for your research on the topic 'Building envelope.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.
1
Chiradeja, Pathomthat, and Atthapol Ngaopitakkul. "Energy and Economic Analysis of Tropical Building Envelope Material in Compliance with Thailand’s Building Energy Code." Sustainability 11, no. 23 (December 3, 2019): 6872. http://dx.doi.org/10.3390/su11236872.
Full textAbstract:
The building envelope has a direct impact on the overall energy consumption of a building. Thus, an improvement in the building envelope using energy-efficient material can yield the desired energy performance. This study is based on the materials and compositions used in building envelopes in compliance with the building energy code of Thailand. The building under study is an educational building located in Bangkok, Thailand. Both the energy and the economic aspects of retrofitted building envelopes are discussed in this study. The energy performance was evaluated by calculating the thermal transfer value and whole building energy consumption using the building energy code (BEC) software. The simulation was done under the assumption that the building envelope in the case study building was retrofitted with different materials and compositions. The study determines the feasibility of retrofitting buildings using energy-efficient material by utilizing the discounted payback period and internal rate of return (IRR) as indicators. The results show that retrofitted building envelopes in every case can reduce the whole building energy consumption. In the best envelope configuration, energy consumption can decrease by 65%. In addition, the economic potential is also high, with an IRR value of approximately 15% and a payback period of 23 less than nine years. These finding indicate that a building envelope made with energy-efficient material can achieve good results for both energy performance and economic feasibility.
2
Guedouh, Marouane Samir, Mohamed Amine Khadraoui, and Houssein Sami Belmahdi. "Energy Efficiency in Building Based on the BIPV Panels System Used as a Double Skin Envelop in a Hot Arid Region." International Conference on Applied Engineering and Natural Sciences 1, no. 1 (July 20, 2023): 183–87. http://dx.doi.org/10.59287/icaens.989.
Full textAbstract:
This paper aims to solve one of the energy issues using specific new building designs using the building-integrated photovoltaic (BIPV) panels as a double skin envelope. The BIPV system can be an innovative material for the building envelope during the design process as a: frame component, curtain wall or shading device. In addition to its power generation, the use of the BIPV can be an integrated part of the design of future envelopes and in the energy renovation of old buildings; these systems can producerenewable energy, minimize energy consumption, provide adequate indoor comfort and have less impact on the environment. As an external envelope of the buildings and a source of energy, the BIPV systems can represent the architectural appearance and aesthetic arrangements of the future building. Our investigation is based on an Energy report in many existing office buildings in a hot arid region of Algeria in order to assess their energy consumption, thereafter; calculate the energy yield after the BIPV hypothetical use in building architecture. The important result shows that the BIPV system enhances energy consumption with different percentages of the total energy consumption per year (Building sample 1: 50%, Building sample 2: 30% and Building sample 3: 65%) this is due to many architectural elements; such as: envelop form, shading devices, opening ratio, and environment masks. The major conclusion of the research reveals that The BIPV systems can preserve the architectural aesthetic appearance as well as enhancement of energy consumption.
3
Surendran, Vidhya Maney, Chandramathy Irulappan, Vijayalaxmi Jeyasingh, and Velraj Ramalingam. "Thermal Performance Assessment of Envelope Retrofits for Existing School Buildings in a Hot–Humid Climate: A Case Study in Chennai, India." Buildings 13, no. 4 (April 21, 2023): 1103. http://dx.doi.org/10.3390/buildings13041103.
Full textAbstract:
This study aims to propose building envelope retrofit packages for existing naturally ventilated school buildings in the hot–humid climatic region of Chennai, India. Indoor thermal parameters were collected through field studies from nine sample classrooms of a selected school building in May 2019, between 9.00 am and 4.00 pm. The thermal performance assessment of the existing building was performed by examining the discomfort hours using the CBE thermal comfort tool. Envelope retrofit strategies gathered from the literature and building standards were applied and studied through simulation. The findings reveal the enormous potential to increase the thermal comfort of existing school buildings through envelope retrofit measures. The results demonstrate that the whole-building temperature can be reduced up to 3.2 °C in summer and up to 3.4 °C in winter. Implementing retrofit measures to the building envelopes of existing buildings will help school owners to increase the comfortable hours of whole buildings by up to 17%. In comparison, annual energy savings of up to 13% for the whole building can be made by enhancing the thermal performance of the building envelope. The findings will also help architects to optimise thermal performance and energy usage with minimal interventions.
4
Li, Huanyu, Guohui Feng, Yi Pu, and Han Wang. "Case analysis of thermal defect detection of near-zero energy building envelope based on infrared thermography." E3S Web of Conferences 356 (2022): 01006. http://dx.doi.org/10.1051/e3sconf/202235601006.
Full textAbstract:
The thermal performance of the envelope structure is one of the important components of the performance design of near-zero energy buildings. Minimizing envelope heat loss is the key to improving building energy efficiency. A necessary first step in the building envelope optimization process is the assessment of its actual thermal performance. This paper summarizes the application status of infrared thermography in thermal defect detection of building envelopes and common forms of thermal defects in near-zero energy buildings. Taking a near zero energy building in Shenyang area as the target object, an efficient and non-destructive infrared thermal image measurement method is applied to determine the thermal defect rating of the building from both qualitative and quantitative aspects. The results show that the building has high thermal performance. The temperature field distribution of the building envelope could be quickly obtained by using the infrared thermal imaging instrument. In this way, it can accurately identify the location of thermal bridges and air tightness defects, and provide an efficient and accurate detection method for building energy-saving diagnosis and evaluation.
5
Dubrakov, S. V., A. V. Masalov, and I. V. Zavalishin. "Comprehensive Restoration of the Normative Technical Condition of Expanded Clay Concrete Panels of Industrial Buildings with Moral and Physical Wear." Proceedings of the Southwest State University 23, no. 6 (February 23, 2020): 77–89. http://dx.doi.org/10.21869/2223-1560-2019-23-6-77-89.
Full textAbstract:
Purpose of reseach is determining the category of technical condition of building structures to assess the residual resource and service life of industrial facilities and urban infrastructure. Development of a fundamental technical solution to the problem of comprehensive restoration of a workable technical condition of building envelopes, including the provision of mechanical and heat engineering requirements.Methods. According to the current regulatory requirements for buildings put into operation, it is necessary to conduct an engineering survey at least once every 10 years. During the engineering survey of the building located at Kursk region, Kurchatovsky district, K. Libknekhta village, ul. Mira 1, significant defects and damages affecting the technical condition of the building envelope were revealed.Results. According to the results of studies, some factors were identified that need to be eliminated. The ways of solving the identified problems and defects associated with the building envelope are given and described in detail to restore the building to its proper position.Conclusion. When conducting surveys of building structures of buildings and structures, it is necessary to pay attention not only to strengthening building structures, but also to restoring the thermal characteristics of building envelopes and bringing them into line with the requirements of current regulatory documents. To accomplish this task, a reinforcement design has been developed that creates the necessary reinforcement and brings the thermal characteristics of the building envelope in line with modern requirements to ensure the necessary energy efficiency of the building envelope.
6
Buday, Peter, Rastislav Ingeli, and Miroslav Čekon. "Influence of Thermal Break Element Applied in Balcony Slab on Internal Surface Temperature." Advanced Materials Research 1057 (October 2014): 79–86. http://dx.doi.org/10.4028/www.scientific.net/amr.1057.79.
Full textAbstract:
Reduction of energy use in buildings is an important measure to achieve climate change mitigation. It is essential to minimize heat losses when designing and building energy efficient buildings. For an energy-efficient building in a cold climate, a large part of the space heating demand is caused by transmission losses through the building envelope. To achieve this, it is necessary to have processed a detailed design of buildings. Thermal bridges have to be eliminated in the design of buildings. Thermal bridges occur as point ones or linear. One of the specific details that create thermal leakage is located in balcony slabs. The balcony is one of the main reasons of the increased heat loss of buildings. The presence of thermal bridge in constructions of balcony envelopes influences the energy consumption, durability of the building envelopes, and also the thermal comfort of occupants. This paper is focused on advanced analysis of thermal performance of thermal break element applied in balcony slab with parametric correlation to the thermal properties of wall building envelope.
7
Avcıoğlu, Banu Çiçek, and Hüdayim Başak. "Increasing efficiency with biomimetic approach in thermoregulative building envelope strategies supporting internal thermal comfort." World Journal of Environmental Research 10, no. 2 (December 31, 2020): 75–83. http://dx.doi.org/10.18844/wjer.v10i2.5347.
Full textAbstract:
There has been a plea for sustainable use of resources since the twentieth century. Buildings are known to consume forty percent of the world’s resources. Resources such as gas, oil, coal and electrical energy used in heating, cooling and ventilation of buildings are limited, as well as causing air pollution and climate change. For this reason, the energy resources used in the buildings should be used effectively, considering environmental concerns. The aim of this study is to describe the shift in efficient use of energy in buildings using a biomimetic approach in thermoregulative building envelope strategies that support internal thermal comfort. In this study, passive systems integrated into buildings which use solar energy, one of the renewable energy sources for heating, cooling and ventilation purposes have been examined. The methods followed by nature in using solar energy are discussed with the biomimetic approach and suggestions have been made to support the increase of energy efficiency by applying the obtained teachings to passive building envelopes. Keywords: biomimetics; building envelope; kinetic building envelope; passive strategies; Thermal comfort
8
Li, Junjie, Shuai Lu, Wanlin Wang, Jie Huang, Xinxing Chen, and Jiayi Wang. "Design and Climate-Responsiveness Performance Evaluation of an Integrated Envelope for Modular Prefabricated Buildings." Advances in Materials Science and Engineering 2018 (August 7, 2018): 1–14. http://dx.doi.org/10.1155/2018/8082368.
Full textAbstract:
Modular prefabricated buildings effectively improve the efficiency and quality of building design and construction and represent an important trend in the development of building industrialization. However, there are still many deficiencies in the design and technology of existing systems, especially in terms of the integration of architectural performance defects that cannot respond to occupants’ comfort, flexibility, and energy-saving requirements throughout the building’s life cycle. This research takes modular prefabricated steel structural systems as its research object and sets the detailed design of an integrated modular envelope system as the core content. First, the researcher chose two types of thermal insulation materials, high insulation panels and aerogel blankets, in order to study the construction details of integrated building envelopes for modular prefabricated buildings. Focusing on the weakest heat point, the thermal bridge at the modular connection point, this work used construction design and research to build an experimental building and full-scale model; the goal was to explore and verify the feasibility of the climate-responsive construction technique called “reverse install.” Second, as a response to climate change, building facades were dynamically adjusted by employing different modular building envelope units such as sunshades, preheaters, ventilation, air filtration, pest control, and other functional requirements in order to improve the building’s climate adaptability. Finally, based on the above structural design and research, this study verified the actual measurements and simulation, as well as the sustainability performance of the structure during the operational phase, and provided feedback on the design. The results highlight the environmental performance of each construction detail and optimized possibilities for an integrated envelope design for modular prefabricated buildings during both the design and renovation phases.
9
Habibi, Shahryar. "Improving building envelope performance with respect to thermal, sound insulation, and lighting: a case study." Building Acoustics 26, no. 4 (October 3, 2019): 243–62. http://dx.doi.org/10.1177/1351010x19877280.
Full textAbstract:
This study concerns an overall evaluation of building envelopes, for what concerns the energy, acoustic and lighting performances. It combines different topics of energy and indoor comfort, with the aim to improve the livability of an existing building (a social housing) by means of a comprehensive retrofit of their envelopes. The novel contribution of this study is to apply some methods for energy retrofit of a building envelope in such a way that objectives are achieved within the state-of-the-art combination simulation, optimization approaches, and equations describing the calculations of sound insulation in buildings. The results showed that properties of building envelope like the value of transmittance of the glass window and thermal properties of materials have an impact on indoor environmental quality and energy performance.
10
Perekhozhentsev, Anatoliy Georgievich. "Perekhozhentsev A.G. Control of thermal resistance of building envelopes according to heat comfort in a premise." Vestnik MGSU, no. 2 (February 2016): 173–85. http://dx.doi.org/10.22227/1997-0935.2016.2.173-185.
Full textAbstract:
Setting standards of thermal resistance of building envelopes is a current task related with energy saving and energy efficiency of building envelopes. The problem of choosing the factor determining the standard thermal resistance also stays current even after updating of the Construction Norms. The author consider the concept of norming the thermal resistance of building envelope, in which the temperature of the inner surface of a building envelope providing comfortable temperature conditions in premises. The main task of an architect, who is designing an energy efficient building envelope is providing comfortable conditions in premises both in cold and warm periods of the year. The temperature of the inner surface of building envelopes should be included into the construction norms as the main criterion providing comfortable air temperature in premises.
11
Bachrun, Abraham Seno, Ting Zhen Ming, and Anastasia Cinthya. "BUILDING ENVELOPE COMPONENT TO CONTROL THERMAL INDOOR ENVIRONMENT IN SUSTAINABLE BUILDING: A REVIEW." SINERGI 23, no. 2 (July 12, 2019): 79. http://dx.doi.org/10.22441/sinergi.2019.2.001.
Full textAbstract:
The engineering of building envelope aims is to achieve building energy efficiency which uses shading device to increase the shaded area. Also, to reduce heat gain by the building from solar radiation, this will reduce the energy load on the building. This paper aim to focuses on the deepening of technology of building envelope elements, and how the building envelope can control the thermal comfort as part of the indoor environment in a building that carries sustainability architecture. In conclusion, finally, reveal that the principles of passive design on building envelope have a great influence on the comfort level in the building. It is not possible to create a design that meets the thermal comfort requirements by emphasizing the design of building envelopes. The goal to be achieved in sustainable design is to minimize the use of the current design that takes much energy (almost14% world energy consumption) to address the issue of energy crisis lately.
12
Paton-Cole, V., R. H. Crawford, R. Turnbull, E. Fitzgerald, A. Michalewicz, and J. Garber. "Trends in Residential Building Materials in the State of Victoria." IOP Conference Series: Earth and Environmental Science 1101, no. 4 (November 1, 2022): 042022. http://dx.doi.org/10.1088/1755-1315/1101/4/042022.
Full textAbstract:
Abstract As the population in Victoria continues to grow, there has been a corresponding increase in building approvals across the State. Houses characterised as low-rise residential buildings often take the largest share of these approvals, with incessant residential building activities being driven by record low interest rates. Low-rise residential buildings comprise various building forms that use a number of specified construction materials to construct the building envelope and other structural and non-structural elements. As materials used for constructing residential building envelopes continue to evolve, these materials must be fit for purpose, and satisfy design criteria and performance requirements, while being aesthetically pleasing. This research analyses the trend in construction materials used in building envelopes of low-rise residential buildings using data from building permits issued between 1996 to 2019. The trend analysis shows that traditional double brick wall systems and suspended timber floors have reduced in popularity for houses built in the 21st century. The analysis also shows that brick veneer wall cladding systems built over slab-on-ground footings is the dominant construction form while the roof cladding material is influenced by geographical location. Insights from the data analysis indicate very little innovation has emerged in materials for residential building envelopes despite its crucial role in providing thermal comfort for inhabitants. Results from this research will serve as a basis to provide quantitative assessment of the trend in materials resource; provide insights about the impact of new building envelope products on existing industries; and perspectives on materials for future building envelopes.
13
MALBILA, Etienne, Fati ZOMA, David Y. K. TOGUYENI, Chris-veenem Methushael COMPAORE, and Dieudonné Joseph BATHIEBO. "Developing Double Walls System to Improve Building Energy Performances in Dry Tropical Climates." IRA-International Journal of Applied Sciences (ISSN 2455-4499) 16, no. 3 (August 9, 2021): 39. http://dx.doi.org/10.21013/jas.v16.n3.p1.
Full textAbstract:
This paper deals with building envelope thermal performance through a comparative study of the use of two types of construction materials, such as CEB and cement blocks, in order to introduce the use of double walls in sustainable buildings' construction. The building envelope participates in providing thermal comfort to users and in the optimal management of building energy consumption. This study begins with a survey of public preferences for building materials used in Burkina Faso. The results indicate that 76% of the people surveyed opt for cement blocks over local materials. Concerning the thermal and specific energy performance, three variants of building envelope were studied: CEB walls, cement blocks and the double-wall (CEB + Cement blocks). It appears that the CEB walls are more efficient than the cement block walls. The introduction of double envelopes leads to the thermal resistance of 357.37m².K/W and reduces the heat flow from 85.32% to 90.24% compared to the wall made with CEB and cement blocks. This approach, which consists in mixing construction materials for good thermal insulation, allows improving the envelope thermal performance and the overall building energy performance.
14
Lu, Shilei, Zichen Wang, and Tianshuai Zhang. "Quantitative Analysis and Multi-Index Evaluation of the Green Building Envelope Performance in the Cold Area of China." Sustainability 12, no. 1 (January 6, 2020): 437. http://dx.doi.org/10.3390/su12010437.
Full textAbstract:
In China, relevant standards about building energy efficiency and green buildings have resulted in corresponding requirements for the envelope thermal performance. However, improvement of the thermal performance of the envelope is accompanied by an increase of the environmental impact and cost. This study quantitatively analyzed the thermal performance, environmental impact, and cost of the green building envelope in cold areas and established a common practice database, as well as a multi-index evaluation model. The results show that the best thermal performance improvements are 40% in residential buildings and 30% in public buildings, respectively, based on the relevant standards. The exterior walls and windows have the greatest impact on building heat consumption. There is no significant correlation between the heat consumption and the comprehensive heat transfer coefficient of 10 green buildings. Therefore, the comprehensive heat loss coefficient is corrected. The verification results show that all errors except project 10 are within 15%. Additionally, the projects with balanced thermal performance improvement of exterior walls and windows showed a better performance. Finally, the best combination of residential building envelopes in the cold area was selected, using the evaluation model and quantitative database to calculate the comprehensive score.
15
Iancu, I. E., and L. M. Moga. "Thermal bridge assessment at industrial buildings." IOP Conference Series: Earth and Environmental Science 1185, no. 1 (May 1, 2023): 012027. http://dx.doi.org/10.1088/1755-1315/1185/1/012027.
Full textAbstract:
Abstract It is well known that the thermal performance of a building is influenced by the solutions that define the building’s envelope. In the case of industrial buildings, due to the use of different envelope solutions (e.g. sandwich panels, prefabricated concrete panels etc.), the types of thermal bridge details are often different in comparison to those currently found in residential, office and administrative buildings. Thus, several numerical simulations were performed by analysing details of envelope elements identified at industrial buildings, especially the areas prone to intensified heat flow (joint areas, intersections, glazed surfaces, and others.). Therefore, the paper will present the assessment of thermal bridge details for four industrial buildings having various destinations. The effects of two-dimensional heat transfer in envelope elements, such as windows, walls, foundations, roofs and doors, will be evaluated. The impact of the thermal bridges will be measured by verifying to what extent the level of thermal performance of each envelope component meets the thermal resistance requirements, as well as the building envelope ensures the global heat transfer coefficient for each of the studied cases. A series of conclusions and recommendations will be provided for specialists and designers in the building energetics field.
16
Hao, Ziyang, Jingchao Xie, Xiaojing Zhang, and Jiaping Liu. "Simplified Model of Heat Load Prediction and Its Application in Estimation of Building Envelope Thermal Performance." Buildings 13, no. 4 (April 19, 2023): 1076. http://dx.doi.org/10.3390/buildings13041076.
Full textAbstract:
This study provides a reference for estimating the building envelope thermal performance at the initial stage of design for nearly zero-energy buildings in different climate zones. A simplified model of heat load prediction, which combines the quasi-steady-state thermal balance calculation procedure in ISO 52016 and the variable-base degree-days method, was proposed. Therefore, a building energy performance evaluation tool BPT V1.0 was developed. Subsequently, the simplified model was validated through comparative analysis with the Building Energy Simulation Test (BESTEST) standard procedure. To conduct a feasibility analysis of the development tool, case studies were performed on the performance evaluation of building envelopes of residential and office buildings in different climate zones in China. Compared to the simulation results from EnergyPlus, the deviation of heat load calculated by BPT V1.0 was within 10%, which further verifies the applicability of the tool under different climatic conditions. Annual heat load under different thermal performance building envelopes was calculated through BPT V1.0. The building energy efficiency improvement rates were found to range from 30 to 60% in nearly zero-energy buildings in different climate zones in China. The study results can provide a reference for energy managers and a basis for estimating the building energy efficiency performance with different envelope thermal properties in the region.
17
Brito, Jorge de, and M. Glória Gomes. "Special Issue “Building Thermal Envelope”." Energies 13, no. 5 (February 28, 2020): 1061. http://dx.doi.org/10.3390/en13051061.
Full textAbstract:
The increasing requirements in building thermal and energy performance standards and the need to design nearly zero-energy buildings, while still enhancing the indoor comfort conditions, have led to a demand for more efficient thermal building envelope solutions [...]
18
Shrestha, Ritu, and Sanjeev Maharjan. "Energy Performance Evaluation of Domestic Airport Departure Hall TIA, Kathmandu." Journal of Advanced College of Engineering and Management 8, no. 1 (June 23, 2023): 157–66. http://dx.doi.org/10.3126/jacem.v8i1.55920.
Full textAbstract:
This research focuses on the energy performance of the building envelope of an Airport Terminal Building in Kathmandu, Nepal. This study explores how to improve thermal comfort Energy analysis through a quantitative analysis of the effect of thermal characteristics of the building envelope. Development of base model Revit and duplicated in Autodesk Insight. This study is about the operational electricity consumption, Peak Heating/cooling load and Energy use intensity of the building at domestic departure hall at Tribhuvan International Airport, Building envelops systems pose a great scope to reduce the energy consumption and consequently improve building efficiency. This research is concern with reduction of operational electricity consumption on Heating and cooling system Most part of the energy consumption is occupied by HVAC system and this consumption needs to be optimized to reduce whole energy consumption of the buildings.
19
Labovská, Veronika, and Dušan Katunský. "In situ monitoring of internal surface temperature of the historic building envelope." Selected Scientific Papers - Journal of Civil Engineering 11, no. 1 (June 1, 2016): 77–84. http://dx.doi.org/10.1515/sspjce-2016-0009.
Full textAbstract:
Abstract Historical building envelope is characterized by a large accumulation that impact is mainly by changing the inner surface temperature over time. The minimum value of the inner surface temperature is set Code requirements. In the case of thermal technology assessment of building envelope contemplates a steady state external temperature and internal environment, thereby neglecting the heat accumulation capacity of building envelopes. Monitoring surface temperature in real terms in situ shows the real behavior of the building envelope close to reality. The recorded data can be used to create a numerical model for the simulation.
20
Hong, Xiaowei, Guangjin Zhang, and Yufeng Zhang. "The effects of building layouts and envelope on indoor thermal environment of Hui style traditional buildings in Wuyuan." E3S Web of Conferences 194 (2020): 05013. http://dx.doi.org/10.1051/e3sconf/202019405013.
Full textAbstract:
Indoor thermal environment of Hui style traditional houses is depended on surrounding environments, building layouts and envelope. Quantitative analysis of the effects of building layouts and envelope on indoor thermal environment is of great significance for preventions of traditional houses and design of new archaized houses. A field investigation was conducted on thirty-six traditional houses from nine villages in Wuyuan, and the typical buildings’ layout and envelope were determined. Four traditional buildings in different location in Wuyuan were selected for continual recording. The four buildings with four types of building layouts and envelope were analyzed by using local adaptive thermal comfort model, and the effects of building layouts and envelope of traditional buildings were clearly revealed. The most crucial way to improve indoor thermal environment in Hui style traditional buildings was raising the indoor air temperature.
21
Bucklin, Oliver, Roberta Di Di Bari, Felix Amtsberg, and Achim Menges. "Environmental Impact of a Mono-Material Timber Building Envelope with Enhanced Energy Performance." Sustainability 15, no. 1 (December 28, 2022): 556. http://dx.doi.org/10.3390/su15010556.
Full textAbstract:
Broader adoption of timber construction is a strategy for reducing negative greenhouse gas (GHG) emissions created by the construction industry. This paper proposes a novel solid timber building envelope that uses computational design and digital fabrication to improve buildings’ energy performance. Timber beams are sawn with deep slits that improve thermal insulation and are milled with various joints for airtight, structural connections. To minimize embedded energy and to simplify disposal, the envelope is assembled without adhesives or metal fasteners. The building envelope is evaluated for thermal resistance and airtightness, and fabrication is evaluated for duration and power output during sawing. Finally, a Lifecycle Assessment (LCA) is carried out. The Global Warming Potential (GWP) is compared to that of other wood envelope systems with similar thermal conductance. Compared to other timber constructions with similar building physics properties, the proposed system showed lower GWP values (−15.63 kg CO2 eq./m² construction). The development and analysis demonstrate the potential to use digitally controlled subtractive manufacturing for improving the quality of solid timber to achieve higher environmental performance in building envelopes. However, further design and fabrication optimizations may be necessary to reduce required materials and production energy.
22
Ab. Azis, Shazmin Shareena, Ibrahim Sipan, Maimunah Sapri, Rohaya Abdul Jalil, and Izran Sarrazin Mohammad. "The effect of green envelope components on green building value." Property Management 35, no. 2 (April 18, 2017): 181–201. http://dx.doi.org/10.1108/pm-11-2015-0056.
Full textAbstract:
Purpose The purpose of this paper is to identify green envelope building components of residential buildings applicable under hot and humid climates and to analyze the effect of these components on building value. Design/methodology/approach The authors place an emphasis on green envelope components that influence building value and which are derived based on their integration into a building envelope structure that is applicable under hot and humid climates. This is performed through identification of green benefits of each green envelope component based on literature reviews and in relation to green criteria listed by the Malaysia Green Building Index (GBI). Consequently, a quantitative analysis has been conducted to determine the effect of these green envelope components on building value by means of a questionnaire distribution among 550 property valuation practitioners in Malaysia. However, in order to certify respondents’ credibility, the authors analyzed questionnaires answered by property valuation practitioners with experience in green valuation. Findings The findings show that there are ten green envelope components currently certified under GBI Malaysia and applicable for hot and humid climates. There are three green envelope components that can increase property values, specifically: solar photovoltaic, green living wall and green roof. However, eight of the green envelope components have no effect on building value. Research limitations/implications Due to the relative immaturity of the green building market in Malaysia, the authors were unable to analyze the actual percentage of increment on building value as conveyed by each green envelope component. Originality/value This paper aims to provide understanding of the effect of individual green envelope components on building value rather than merely the value of green buildings in general. It proves that green building envelope components do in fact contribute to an increase in green building values. As the green building market in Malaysia is still in its infancy, this study is significant in that it prepares the Malaysian green building market to attain a new level by providing valuation practitioners with awareness of green building values and new knowledge concerning the effect of individual green components on building values. Hence, it is anticipated that this study can assist property valuation practitioners in conducting valuations of green buildings in the future.
23
Longo, Surnam Sonia, Maurizio Cellura, Maria Anna Cusenza, Francesco Guarino, and Ilaria Marotta. "Selecting Insulating Materials for Building Envelope: A Life Cycle Approach." TECNICA ITALIANA-Italian Journal of Engineering Science 65, no. 2-4 (July 30, 2021): 312–16. http://dx.doi.org/10.18280/ti-ijes.652-426.
Full textAbstract:
This paper aims at assessing the embodied energy and greenhouse gas emissions (GHGs) of two building envelopes, designed for a two floors semi-detached house located in the Central Italy. The analysis is performed by applying the Life Cycle Assessment methodology, following a from cradle-to-gate approach. Fixtures (windows and doors), external and internal opaque walls, roof and floors (including interstorey floors) make the building envelopes. Their stratigraphy allows for achieving the thermal transmittance values established in the Italian Decree on energy performance of buildings. The two examined envelopes differ only for the insulation material: extruded expanded polystyrene (XPS) or cellulose fibers. The results shows that the envelope using cellulose fibers has better performance than that using XPS: it allows for reducing the embodied energy and the GHGs of about 13% and 9.3%, respectively. A dominance analysis allows to identify the envelope components responsible of the higher impacts and the contribution of the insulating material to the impacts. The study is part of the Italian research “Analysis of the energy impacts and greenhouse gas emissions of technologies and components for the energy efficiency of buildings from a life cycle perspective” funded by the Three-year Research Plan within the National Electricity System 2019-2021.
24
Geryło, R. "Energy-related conditions and envelope properties for sustainable buildings." Bulletin of the Polish Academy of Sciences Technical Sciences 64, no. 4 (December 1, 2016): 697–707. http://dx.doi.org/10.1515/bpasts-2016-0079.
Full textAbstract:
AbstractThe assessment methodology for the sustainability of buildings is based on the analysis of environmental, social and economic performance. The main purpose of the paper is the presentation of energy-related conditions and envelope properties as well as methodology aspects. The first part of the paper presents the literature review on sustainability and zero-energy buildings. The second part is devoted to describe different energy indicators for the evaluation of primary energy requirements and energy characteristic. The last section describes the general methodology for characterization of energetic properties of the building envelope and gives examples from literature of the effect of applications in a building’s envelope an aerogel based thermal insulation for higher thermal transmittance and a PCM for higher latent heat capacity with general description of results obtained by other authors. The crucial measure is the use of high thermal performance components for the building’s envelopes combined with the heat storage potential. In the context of sustainability, energy related conditions constitute a new set of indicators for identifying the usefulness and the efficiency of new technologies.
25
Yang, Qianmiao, Liyao Kong, Hui Tong, and Xiaolin Wang. "Evaluation Model of Environmental Impacts of Insulation Building Envelopes." Sustainability 12, no. 6 (March 13, 2020): 2258. http://dx.doi.org/10.3390/su12062258.
Full textAbstract:
Energy consumption during use is the focus of insulation envelope design, but the environmental impact of other stages in the entire life cycle of building envelopes should be of equal concern. In this paper, a model has been developed based on the life-cycle environmental assessment for calculating the environmental impacts of building envelopes. The model proposed will be useful to evaluate the environmental performance of various envelopes to optimize the design of energy-saving envelopes. Consequently, lots of experiments are conducted for environmental impact assessment and analysis for external windows and filler walls with energy-savings in heating areas of China. Four conclusions can be drawn from the analysis. (1) K of building envelope is the design parameter of the greatest impact on environmental performance and has a critical value, which is the value that has the smallest environmental impact over the entire life cycle. (2) The importance of the environmental impact of the building envelope during the life cycle stages is as follows: usage > production > transportation > disposal > construction. The construction process of the thermal insulation wall could be negligible. (3) The choice of regional building materials should consider the distance of transportation, which may be the key factor determining its life cycle environmental performance. (4) Aerated concrete EPS walls and wooden windows are the first choices for envelope construction from the environmental impact throughout the life cycle.
26
Shi, Yuchen, Xiaofeng Li, and Seyedehelham Sadatiseyedmahalleh. "Influence of Building Envelope Type on the Minimum Mechanical Ventilation Rate to Achieve a Positive Indoor Air Pressure." E3S Web of Conferences 172 (2020): 05002. http://dx.doi.org/10.1051/e3sconf/202017205002.
Full textAbstract:
In order to limit the infiltration of outdoor air pollutants, a positive indoor air pressure should be maintained. This study aims to investigate the minimum mechanical ventilation rate to achieve a positive indoor air pressure for large space buildings with different kinds of envelopes. The types of building envelope include envelope with multilayer windows (which generally appears in shopping malls and open-plan office buildings), envelope with entrances on the first floor and multilayer windows, and envelope with openings at bottom and top levels (which generally appears in industrial plants). It is concluded that the minimum ratio between mechanical ventilation and initial infiltration rates to achieve a positive indoor air pressure depends on the window width-height ratio, the vertical spacing between windows, and the number of window layers. More regulations are summarized and analysed to guide the ventilation design.
27
Chidiac, Samir E., and Ghassan E. Marjaba. "BECOP: A New Metric for Measuring the Energy Performance of the Building Envelope." Buildings 12, no. 5 (April 26, 2022): 553. http://dx.doi.org/10.3390/buildings12050553.
Full textAbstract:
Thermal properties of the building envelope (BE) prescribed by codes and standards do not provide a consistent and comprehensive measure of its performance. Qualitative comparative analysis employed by the codes to assess energy savings is deterrent to technology development as the potential energy savings are never realized. A new metric, referred to as the building envelope coefficient of performance (BECOP), is proposed, which compares the BE performance to an ideal system. BECOP, which is invariant to calculation methods and applicable to all building types and climate zones, is a comprehensive metric for assessing the thermal performance of building envelopes while accounting for the various building characteristics. The sensitivity and range of BECOP were assessed for Canadian climate and construction methods. Using case studies, BECOP results revealed that current practices and regulations pertaining to the building envelope are inconsistent and fail to provide any measure of efficiency. It was also found that current building envelope technologies are not energy efficient. A max BECOP value of 35% is obtained for the best building envelope technology, revealing inefficiencies and energy saving potentials.
28
Chidiac, Samir E., and Ghassan E. Marjaba. "BECOP: A New Metric for Measuring the Energy Performance of the Building Envelope." Buildings 12, no. 5 (April 26, 2022): 553. http://dx.doi.org/10.3390/buildings12050553.
Full textAbstract:
Thermal properties of the building envelope (BE) prescribed by codes and standards do not provide a consistent and comprehensive measure of its performance. Qualitative comparative analysis employed by the codes to assess energy savings is deterrent to technology development as the potential energy savings are never realized. A new metric, referred to as the building envelope coefficient of performance (BECOP), is proposed, which compares the BE performance to an ideal system. BECOP, which is invariant to calculation methods and applicable to all building types and climate zones, is a comprehensive metric for assessing the thermal performance of building envelopes while accounting for the various building characteristics. The sensitivity and range of BECOP were assessed for Canadian climate and construction methods. Using case studies, BECOP results revealed that current practices and regulations pertaining to the building envelope are inconsistent and fail to provide any measure of efficiency. It was also found that current building envelope technologies are not energy efficient. A max BECOP value of 35% is obtained for the best building envelope technology, revealing inefficiencies and energy saving potentials.
29
Kowalski, Piotr, and Paweł Szałański. "Airtightness test of single-family building and calculation result of the energy need for heating in Polish conditions." E3S Web of Conferences 44 (2018): 00078. http://dx.doi.org/10.1051/e3sconf/20184400078.
Full textAbstract:
The article presents results of air permeability measurements carried out for envelopes of two entire typical single-family residential buildings and separately for envelopes of garages and residential zones of these buildings. The effect of taking into account separate air permeability measurements of building zones on the calculation results of infiltration heat losses and on the energy need for heating is analysed. The calculation results obtained in this way are then compared to calculation results obtained in the case of air permeability measurements of the entire building envelope.
30
Song, K., and P. Mukhopadhyaya. "Vacuum insulation panels (VIPS) in building envelope constructions: An overview." International Review of Applied Sciences and Engineering 7, no. 2 (December 2016): 113–19. http://dx.doi.org/10.1556/1848.2016.7.2.7.
Full textAbstract:
Driven by updated building energy codes and green building initiatives across the world, vacuum insulation panel, also known as VIP, has become a desired insulation product for building envelope constructions. VIP has initial center-of-panel thermal conductivity of 0.004 W/mK or lower, and integration of VIP in building envelopes can reduce CO2 emissions and contribute towards ‘net-zero’ or ‘near-net-zero’ building constructions. Although VIPs have been applied in real-world constructions across the world, primarily in Asia, Europe and North America, it is still a novel building product under investigation. This overview paper is a summary of fundamentals, constituents, constructions and performances of VIPs. The paper shows there exists many advantages and challenges associated with the integration of VIPs in building envelope constructions. The speed at which VIPs will be integrated in building envelope construction in the coming years remains unclear; nevertheless, it is evident that vacuum technology is the promising way forward for sustainable building envelope constructions in the 21st century.
31
Kabošová, Lenka, Stanislav Kmeť, and Dušan Katunský. "Wind flow around buildings of basic shapes with and without a wind-adaptive envelope." Selected Scientific Papers - Journal of Civil Engineering 15, no. 1 (September 1, 2020): 59–75. http://dx.doi.org/10.1515/sspjce-2020-0007.
Full textAbstract:
Abstract Together with the natural environment, the built, artificial environment represents a barrier to the wind fluxes. Especially in the densely built cities, the wind flow pattern and the wind speed are considerably altered by buildings, which can lead to zones of an accelerated wind and turbulent flow. Incorporating the wind into the early conceptual stage of architectural design, this reciprocal interaction of the built environment and the wind fluxes can be analyzed and controlled to create zones of calmer wind around buildings. Presently, building envelopes are designed to withstand extreme load cases, which, however, demands thicker and bulkier structures. The subject of this study is a proposal and investigation of a lightweight, adaptive building envelope, which is able of a local, passive morphing in the wind. This local shape change leads to creating a textured, dimpled building surface; the final shape depends on the wind direction and force. The wind-induced dimpled surface influences the wind flow around the building, as well as surface wind pressure acting on the building, and the drag force. The analysis of three fundamental building shapes using the CFD (Computational Fluid Dynamics) simulation is performed for the variants with and without the proposed adaptive envelope. Concluding from the wind simulations, the wind flow can be decelerated, the turbulence reduced, and calmer zones around buildings can be created, by certain conditions. Moreover, the envelope, morphing with the instant wind force, can contribute to the reduction of the surface wind suction on buildings. Strikingly, the dimpled geometry of the wind-adaptive envelope can decrease the wind drag force by up to 28.4 %, which is again dependent on the global form, as well as the initial wind speed.
32
Garay-Martinez, Roberto, Beñat Arregi, Mikel Lumbreras, Belén Zurro, Jose Manuel Gonzalez, and Jose Luis Hernandez. "Data driven process for the energy assessment of building envelope retrofits." E3S Web of Conferences 172 (2020): 25001. http://dx.doi.org/10.1051/e3sconf/202017225001.
Full textAbstract:
In the last decades, a growing industry has been created in relation to building envelope retrofits. Linked to the lack of financial capacity of many building owners, innovative instruments such as energy performance contracts have been promoted by public bodies. This kind of instruments require of detailed energy assessment processes in order to define the expected heat load reduction and the associated economic flows between building owners and Energy Services Companies. When dealing with building envelopes, existing methods for building envelope heat loss characterization require of substantial efforts in terms of equipment and time, which makes them difficult to apply in real practice. In this paper, a novel method is proposed based on whole-building heat load assessment by means of heat meters, and analytical calculations of building envelope transmission heat load coefficients. This method, which requires minimal or no additional equipment, can be used over historical data from District Heating systems. It assigns a specific load fraction to building envelope heat transfer and allows to assess the expected reduction due to the building envelope retrofit. Numerical and experimental data is presented based on an educational building in the city of Burgos, Spain.
33
Mohamad Hata, Raihana, Rohana Hassan, Fadzil Arshad, and Haslin Idayu. "Effect of Solar Radiation to the Building Materials Properties: A Review." Scientific Research Journal 13, no. 2 (December 31, 2016): 29. http://dx.doi.org/10.24191/srj.v13i2.5450.
Full textAbstract:
This paper provides a review on the effect of solar radiation to the different building materials properties. Solar radiation; watt per meter square [W/m2] is one of the cause for thermal gain in building envelopes. Buildings envelopes comprises of various materials. Different materials have different rate of heat absorption depends on their emissivity and other parameters. The three materials studied in this paper are concrete, timber and composites materials. According to the radiation heat equation, heat rate are affected by the surface area of exposed envelope (A) measure in meter (m), emissivity of the building exposed surface (ε) and the temperature difference between envelope exposed surface (Ts) and temperature of equivalent atmosphere (Tsky) measure in oC. Based on the parameters, research methodology was adopted either by software simulation or test field experimental. Solar radiation affects the materials in various ways, depends on parameters considered, location of testing and type of materials.
34
Mohamad Hata, Raihana, Rohana Hassan, Fadzil Arshad, and Haslin Idayu. "Effect of Solar Radiation to the Building Materials Properties: A Review." Scientific Research Journal 13, no. 2 (December 31, 2016): 29. http://dx.doi.org/10.24191/srj.v13i2.9375.
Full textAbstract:
This paper provides a review on the effect of solar radiation to the different building materials properties. Solar radiation; watt per meter square [W/m2] is one of the cause for thermal gain in building envelopes. Buildings envelopes comprises of various materials. Different materials have different rate of heat absorption depends on their emissivity and other parameters. The three materials studied in this paper are concrete, timber and composites materials. According to the radiation heat equation, heat rate are affected by the surface area of exposed envelope (A) measure in meter (m), emissivity of the building exposed surface (ε) and the temperature difference between envelope exposed surface (Ts) and temperature of equivalent atmosphere (Tsky) measure in 0C. Based on the parameters, research methodology was adopted either by software simulation or test field experimental. Solar radiation affects the materials in various ways, depends on parameters considered, location of testing and type of materials.
35
Bandara, R. M. P. S., and R. A. Attalage. "Optimization of Building Performance in Terms of Envelope Elements through Combined Energy Modelling and Generic Optimization." Applied Mechanics and Materials 592-594 (July 2014): 2447–51. http://dx.doi.org/10.4028/www.scientific.net/amm.592-594.2447.
Full textAbstract:
Buildings account for approximately 40% of the global energy consumption and 36% of total carbon dioxide emissions. At present many efforts are underway to reduce energy consumption and carbon footprint of buildings by optimizing their performance. Building envelope elements have a major impact on the performance of buildings. However, the best combination of the building envelope elements for optimizing the performance of buildings is difficult to determine and is not known. Building performance analysis is mostly done through energy modelling by using a whole building simulation tool. However, this is a slow and a tedious process, and generally only a few cases are evaluated in a large range of possible scenarios. By combining a generic optimization scheme with energy modelling, the best combination of building envelope elements can be determined and, thereby, it is possible to optimize the performance of buildings successfully subject to predefined constraints. This paper describes how the performance of an office building located in the suburbs of Colombo, Sri Lanka is optimized in terms of building envelope elements through combined energy modelling and generic optimization. The optimized envelope design with its efficient utilization of daylight, not only reduces the annual energy consumption substantially, but also leads to better thermal comfort for the occupants.
36
Meng, Xi, Xinyu Shi, Yanna Gao, and Tao Luo. "Composition of cooling load formed by non-transparent envelopes of a common office building under air-conditioning intermittent operation." Journal of Building Physics 43, no. 6 (July 1, 2019): 528–44. http://dx.doi.org/10.1177/1744259119857756.
Full textAbstract:
Under air-conditioning intermittent operation, interior envelopes become the quasi-exterior ones of a partial room and thereby may cause the specified heat loss. However, it is unknown for the heat transfer capacity rate of interior envelopes in the room heat loss, which is of vital significance on the optimization direction of envelopes. To analyze the cooling load composition formed by non-transparent envelopes, an office building was chosen and inner surface heat flows in the studied room were measured under the different intermittent groups of air-conditioning in the adjacent rooms, and combined with the envelop area and heat flow values, the heat transfer capacity through the different envelops could be gained. The results showed that the air-conditioning operation in the adjacent rooms had a large effect on the heat transfer capacities, and the higher the room area, the more remarkable the air-conditioning operation in the adjacent rooms. The average heat transfer capacity rate of the exterior envelope was 21%–35% for room with two exterior walls and only 7%–10% for room with one exterior wall, which were much lower than those of the interior envelopes. It showed that thermal performance of the interior envelopes should be paid more attention to under air-conditioning intermittent operation.
37
Kirankumar, Gorantla, Shaik Saboor, Putta Ranga Talanki Setty, and Ashok Babu. "Effect of Various External Shading Devices on Windows for Minimum Heat Gain and Adequate Day lighting into Buildings of Hot and Dry Climatic Zone in India." MATEC Web of Conferences 144 (2018): 04008. http://dx.doi.org/10.1051/matecconf/201814404008.
Full textAbstract:
Glass is the major component of the building envelope to provide visual comfort to inside the buildings. In général clear and bronze glass was used as a main building envelope for both residential and commercial buildings to provide better day lighting into the buildings. If we use more glass area as a building envelope more radiation allows into the buildings. So that it is necessary to reduce more solar radiation and provide sufficient daylight factor inside the building's through glass windows with the help of external devices called shading devices. In this work four shading devices was tried on bronze glass window to find the heat gain and daylighting into buildings. This paper presents the experimental measurement of spectral characteristics of bronze glass which include transmission and reflection in entire solar spectrum region (300nm-2500nm) based on ASTM standards. A MATLAB code was developed to compute visible and solar optical properties as per the British standards. A building model was designed by design builder software tool. 40% window to wall ratio was considered for building models, thermal and day lighting analysis of buildings through windows was carried out in Energy plus software tool for hot and dry climatic zone of India.
38
Dong, Hao. "Research on the Design and Application of Rural Houses in Northern China Based on Energy-saving Retrofit Technology." E3S Web of Conferences 406 (2023): 02039. http://dx.doi.org/10.1051/e3sconf/202340602039.
Full textAbstract:
The poor thermal performance of rural buildings and the severe pollution caused by coal combustion in northern China are urgent problems that need to be addressed. To solve these two issues, the current status of building envelopes in rural houses in northern China and the commonly used heating methods by rural households were analyzed. The study found that most rural houses lack insulation measures in their building envelopes and require energy-saving renovations. To improve the thermal performance of rural houses, the thermal performance of a rural household’s building envelope was measured and energy-saving renovations were conducted. The measurement results showed that the heat transfer coefficients of the walls, windows, and roofs decreased by 72.7%, 61.59%, and 64.99%, respectively, after the energy-saving renovations, compared to the national limit values. The thermal performance of all building envelope components met the national requirements after the energy-saving renovations. The actual statistics showed a 66.74% reduction in biomass fuel consumption per unit temperature difference after the renovations, indicating a significant improvement in energy efficiency.
39
Korniyenko, Sergey. "Complex analysis of energy efficiency in operated high-rise residential building: Case study." E3S Web of Conferences 33 (2018): 02005. http://dx.doi.org/10.1051/e3sconf/20183302005.
Full textAbstract:
Energy conservation and human thermal comfort enhancement in buildings is a topical issue of modern architecture and construction. The innovative solution of this problem makes it possible to enhance building ecological and maintenance safety, to reduce hydrocarbon fuel consumption, and to improve life standard of people. The requirements to increase of energy efficiency in buildings should be provided at all the stages of building's life cycle that is at the stage of design, construction and maintenance of buildings. The research purpose is complex analysis of energy efficiency in operated high-rise residential building. Many actions for building energy efficiency are realized according to the project; mainly it is the effective building envelope and engineering systems. Based on results of measurements the energy indicators of the building during annual period have been calculated. The main reason of increase in heat losses consists in the raised infiltration of external air in the building through a building envelope owing to the increased air permeability of windows and balcony doors (construction defects). Thermorenovation of the building based on ventilating and infiltration heat losses reduction through a building envelope allows reducing annual energy consumption. Energy efficiency assessment based on the total annual energy consumption of building, including energy indices for heating and a ventilation, hot water supply and electricity supply, in comparison with heating is more complete. The account of various components in building energy balance completely corresponds to modern direction of researches on energy conservation and thermal comfort enhancement in buildings.
40
Ramin, Hadi, and Hazhir Karimi. "Optimum envelope design toward zero energy buildings in Iran." E3S Web of Conferences 172 (2020): 16004. http://dx.doi.org/10.1051/e3sconf/202017216004.
Full textAbstract:
Buildings, commercial and residential combined, account for around 40% of total energy consumption in Iran. Energy consumption in buildings is predicted to increase in the the coming decades decades and immediate actions are required to meet the needs of future generations. Zero energy building (ZEB) is an important concept that can help nations to have a sustainable future. An important step for building a ZEB is to minimize the energy lost from the building, and the envelope of buildings plays a vital role in achieving minimal energy losses. In this paper, a life cycle cost (LCC) analysis is adopted to find the optimum insulation thickness for the common wall structure in Iran. Then, the Iranian standard (Chapter 19) for building envelopes have been reviewed and compared with the minimum requirements of the ASHRAE standard 90.2. The comparison shows that the Iranian standards for buildings envelopes are comparable with the ASHRAE standard 90.2 for the external wall, while ASHRAE requires higher minimum thermal resistance for ceiling compare to chapter 19. The optimization results suggest smaller minimum thermal resistance compare to chapter 19; this is mainly resulting from the characteristic of the Iranian economy (high inflation rate) and subsidized energy sector. Therefore, energy policy in the country needs to be reformed to promote energy conservation in buildings and hence zero energy buildings.
41
Kuo, Po Yen, Yu Chan Chao, and Wen Sheng Ou. "Software Development for Taiwan Building Envelope Load." Applied Mechanics and Materials 71-78 (July 2011): 4057–60. http://dx.doi.org/10.4028/www.scientific.net/amm.71-78.4057.
Full textAbstract:
Taiwan’s building laws are very rigorous for envelope load of various buildings, and building envelope load should be calculated according to the Technical Code for Energy Conservation Design of Buildings. The complex calculation may undermine cooperative initiative of the industry. If computer aid can be used, the time for calculation and laws search can be save. To provide practical computer-aided calculation tool of envelope load for builders and academic departments, this study designed a computer-aided software BEEP-2010 which can quickly calculate whether the designed building meets the regulations. Java is used to write programs for this software. The database system applies the Relational Database. ER-model is used to normalize the database design. The user interface design adopts graphics mode to simplify operation interface. As long as the user understands basic concept of the envelope load, he/she only needs statistics of the area data and print the calculation result in the form of standard window to reduce the inconvenience in table search. Thus, this can greatly improve calculation efficiency of envelope load of Taiwan building businesses and help promote green buildings.
42
Ariff, Azlan Ariff Ali, Sabarinah Sheikh Ahmad, and Mohd Aljefri Hussin. "Green envelope as an architectural strategy for energy efficiency in a library building." MATEC Web of Conferences 266 (2019): 01004. http://dx.doi.org/10.1051/matecconf/201926601004.
Full textAbstract:
In the context of Malaysian tropical climate, green envelope functions to provide satisfying indoor environment and achieve the best performance with minimal energy consumption. Buildings that rely on air-conditioning to improve thermal comfort could benefit from green envelope potentials. Hence, the objective of this paper is to explore the impacts of various types of green envelope towards reducing the energy consumption of a two-storey library building. The methodology approach is quantitative and data are collected through building simulation using Revit Building Information Modelling (BIM). Parameters studied are building orientation, wall insulation, envelope materials, and façade treatment. Results showed that different types of green envelope posed different impact on energy consumption of the library and double glazed windows contribute the most significant reduction of energy consumption. The study establishes the contribution of green envelope and advocates the use of building simulation as research methodology, as it helps to improve envelope design, and to predict the possible outcomes of design alternatives.
43
Sjarifudin, Firza Utama. "Parametric Camshaft Mechanism for Adaptive Building Envelope and Kinetic Building Ornaments." Key Engineering Materials 572 (September 2013): 225–28. http://dx.doi.org/10.4028/www.scientific.net/kem.572.225.
Full textAbstract:
This paper offers development of the building envelope that aims to revive a new expression of traditional decorative elements by applying digital technology as well as having an adaptive function. This paper also proposes a camshaft mechanism system to transform the pattern of traditional ornament that uses pre-programmed analysis data of environmental changes to parametrically drive the number of rotation phase and Lobe Lift that generates the shape of camshaft. Furthermore, this shapes drives the transformation of the basic pattern. In conclusion, this paper has developed a prototypical tool that facilitates the new approach to kinetic decorative ornaments on building envelopes.
44
Monteiro, Helena, Fausto Freire, and John E. Fernández. "Life-Cycle Assessment of Alternative Envelope Construction for a New House in South-Western Europe: Embodied and Operational Magnitude." Energies 13, no. 16 (August 11, 2020): 4145. http://dx.doi.org/10.3390/en13164145.
Full textAbstract:
The building envelope is critical to reducing operational energy in residential buildings. Under moderate climates, as in South-Western Europe (Portugal), thermal operational energy may be substantially reduced with an adequate building envelope selection at the design stage; therefore, it is crucial to assess the trade-offs between operational and embodied impacts. In this work, the environmental influence of building envelope construction with varying thermal performance were assessed for a South-Western European house under two operational patterns using life-cycle assessment (LCA) methodology. Five insulation thickness levels (0–12 cm), four total ventilation levels (0.3–1.2 ac/h), three exterior wall alternatives (double brick, concrete, and wood walls), and six insulation materials were studied. Insulation thickness tipping-points were identified for alternative operational patterns and wall envelopes, considering six environmental impact categories. Life-cycle results show that, under a South-Western European climate, the embodied impacts represent twice the operational impact of a new Portuguese house. Insulation played an important role. However, increasing it beyond the tipping-point is counterproductive. Lowering ventilation levels and adopting wood walls reduced the house life-cycle impacts. Cork was the insulation material with the lowest impact. Thus, under a moderate climate, priority should be given to using LCA to select envelope solutions.
45
Tong, Yueheng, Yang Chen, and Wubing Shao. "Study on Energy Saving Application Strategy of New Residential Houses Envelope Structure in Sanjiangyuan Area Based on Dest Orthogonal Simulation." E3S Web of Conferences 136 (2019): 02036. http://dx.doi.org/10.1051/e3sconf/201913602036.
Full textAbstract:
With the rapid development of social economy, the problem of energy is becoming more and more serious, building energy conservation has become the top priority. Considering the abundant solar energy resources in the Sanjiangyuan area, this paper takes reduce the energy consumption of local residential noumena as the objective, and takes energy consumption of residential system as research target. Taking the modern dwellings in the Sanjiangyuan area as an example, to build a typical model, using the Dest software developed by Tsinghua University to dynamically simulate the load variation of building envelope caused by windows, exterior walls, window wall ratio and roof, and 16 orthogonal test results are simulated. Through the simulation analysis of the upper floors of the building, this study explores the changes in the influence of the form of the envelope structure on the building, then analyse the sensitivity of each factor affecting building energy consumption, and find out the optimal scheme of the envelope in the locality. Finally, this paper suggests that the energy conservation of new residential buildings in Sanjiangyuan area should strengthen the thickness of thermal insulation layer of envelop, open large windows in the south, open small windows in the north, and choose energy saving windows with low heat transfer coefficient to reduce energy consumption and save energy.
46
Dewanto, Rivanus. "THE INFLUENCE OF BUILDING ENVELOPES TOWARDS INDOOR CLASSROOM TEMPERATURE (Case: BINUS Alam Sutera Campus)." International Journal on Livable Space 4, no. 1 (September 21, 2019): 32. http://dx.doi.org/10.25105/livas.v4i1.4693.
Full textAbstract:
<p>ABSTRACT</p><p>The building façade of BINUS Alam Sutera campus is designed with wall variations of building envelope both in terms of material use and of openings volume. These conditions encourage the researcher to observe how much the indoor temperature difference in the classroom is correlated to the wall completion of the building envelope. The method used was by measuring indoor and outdoor temperatures at the same time periods (morning, midday, and afternoon) from the classrooms in different floors. The result of the study reveals that indoor temperature increases relatively towards the sun orientation of north-northeast and of west-southwest. The building envelope with precast concrete and window-wall affects indoor temperature relatively higher in the morning and lower in the afternoon. Whereas the building envelope with precast concrete of dead-glass variation affects indoor temperature relatively lower in the morning yet higher in the afternoon.</p><p>Keywords: Building envelopes, indoor temperature, classrooms</p>
47
Purba, Wolter, Afiri Dianti, Jefri Sigalingging, Nadhira Gilang Ratnasari, and Yulianto Nugroho. "Effect of Water Spray in Controlling Temperature of Hot Gas Propagation through Double Skin Facade." E3S Web of Conferences 67 (2018): 04038. http://dx.doi.org/10.1051/e3sconf/20186704038.
Full textAbstract:
The rapid development of science and technology have contributed in the applied building design. One of them is the improvement of the construction design of the building envelope. Current high-rise building design impacts in wider building envelop surface area and greater heat load received from the sun irradiation. One of the common used design is the doubleskin façade type building envelope. The insulation characteristic given by the envelope interlayer gap can reduce the heat load received. However, in fire cases, the gap becomes hot gasses path, supporting wider flame propagation. Its position in the outside leads to harder fire suppression effort. During this time, the active fire protection system design has just considering fire scenarios inside the building. This research is conducted to see water droplets impact as extinguisher aspect on interlayer gap hot gasses propagation. The experiment used wooden layer with 540 mm x 80 mm x 6 mm dimention as the envelope layer. The interlayer gap varies among others 30 mm, 50 mm, and 70 mm to see flame output characteristic through and time needed for 4 nozzles to extinguish the flame. The suppression system applied is expected to be a solution in the case of double-skin façade building envelope fire event.
48
Kim, Mi-Yeon, Hyung-Geun Kim, Jin-Sung Kim, and Goopyo Hong. "Investigation of Thermal and Energy Performance of the Thermal Bridge Breaker for Reinforced Concrete Residential Buildings." Energies 15, no. 8 (April 13, 2022): 2854. http://dx.doi.org/10.3390/en15082854.
Full textAbstract:
Thermal bridges in building envelopes can cause significant heat loss and heat gain. In this study, the developed thermal bridge breaker was applied to an interior insulation finishing system in residential buildings to minimize the thermal bridges in building envelopes. To investigate the thermal and energy performance of the developed thermal bridge breaker, the surface temperatures and heat flow at the wall and floor junctions were predicted using Physibel. In addition, the heating and cooling energy consumption in a residential building was analyzed by EnergyPlus. As a result, the use of the thermal bridge breaker can minimize the effective thermal transmittance in the building envelope system. Moreover, when the building envelopes were equipped with the thermal bridge breaker, the heating and cooling load through the exterior walls was decreased by 15–27%. Thus, the thermal bridge breaker can play an important role in minimizing the heat loss and occurrence of condensation in building envelopes.
49
Yousefi, Yasin, Petra Gratton, and Dilshad Sarwar. "Investigating the Opportunities to Improve the Thermal Performance of a Case Study Building in London." International Journal of Strategic Engineering 4, no. 1 (January 2021): 1–18. http://dx.doi.org/10.4018/ijose.2021010101.
Full textAbstract:
This study was carried out to investigate the opportunities of improving thermal performance by focusing on envelope effects of a building located in London. Firstly, through a broad literature review of the previous conducted case studies, an investigation of all the building envelope aspects and parameters influencing the thermal performance of the building was conducted to provide critical information of thermal performance of the envelope components within the UK buildings. Then, onsite measurements were carried out to obtain the building's base case heating load using the standard CIBSE GUIDE A 2017 heat load calculation methodology. Neglecting thermal bridging in the heating calculation showed 8% reduction in the building's total heating load. Also, 17% reduction in energy consumption and CO2 emissions was achieved by applying polyurethane-foam and polystyrene-boards as cavity and external wall insulations, respectively. Moreover, the effect of applying both insulation in the energy consumption, CO2 emissions, cost and payback period analysis was analysed.
50
Younes, Chadi, Caesar Abi Shdid, and Girma Bitsuamlak. "Air infiltration through building envelopes: A review." Journal of Building Physics 35, no. 3 (October 24, 2011): 267–302. http://dx.doi.org/10.1177/1744259111423085.
Full textAbstract:
Air leakage through the building envelope into the building interiors has a considerable impact on the energy loads and consequently energy demand and energy costs of buildings. This phenomenon known as infiltration happens through various openings and venues in the building envelope varying from large openings such as doors and windows to minute cracks and crevices. In addition to impacting building energy loads, infiltration impacts indoor air quality and can result in moisture accumulation problems in the building envelope. A generalized review of infiltration that includes evaluation techniques and models, quantification, and interaction with other heat transfer phenomena is presented in this article.