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Journal articles on the topic 'Cooling energy gain'

Author: Grafiati

Published: 5 June 2025

Last updated: 2 August 2025

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1

Scherba, V. E., A. K. Kuzhbanov, M. I. Gildebrandt, V. Yu Kudentsov, N. S. Galdin, and A. A. Gladenko. "Evaluation of rational energy costs for liquid dispersion in piston compressors with a two-phase working fluid." Omsk Scientific Bulletin. Series Aviation-Rocket and Power Engineering 8, no. 4 (2024): 21–28. https://doi.org/10.25206/2588-0373-2024-8-4-21-28.

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The paper considers the condition of efficient operation of a piston compressor with coolant injection, which consists in the fact that the costs of its spraying and injection should be less than the gain in indicator work obtained with intensive gas cooling and the compression process approaching isothermal. The maximum relative gain in the supplied technical work is no more than 25 % when using a coolant injection system. Therefore, to obtain an energy effect from using a cooling system, the costs of organizing it should not exceed (10–15) %. The greatest influence on the amount of energy ga

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Eldbari, ENG Moath Abdrabu, and Muhammad N Radhwi. "Energy Management Improving the Cooling System in a Local Factory." Budapest International Research in Exact Sciences (BirEx) Journal 1, no. 4 (2019): 25–44. http://dx.doi.org/10.33258/birex.v1i4.475.

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Development is an ongoing process in all areas and this research studied of a cooling system for a local factory and evaluated to determine the efficiency and capacity of the cooling capacity of the factory at the desired level. ِAfter evaluating the cooling system and studying the case of the local factory, the heat gain loads in the factory was calculated internally and externally and found that there is a deficit in the cooling system by 45% and the suggestion is to improve the cooling system without affecting production or manpower. Accordingly, three points have been developed to improve

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Lam, Joseph C., C. L. Tsang, Danny H. W. Li, and S. O. Cheung. "Residential building envelope heat gain and cooling energy requirements." Energy 30, no. 7 (2005): 933–51. http://dx.doi.org/10.1016/j.energy.2004.07.001.

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4

Hadini, Muthiah Hakim, Ova Candra Dewi, Nandy Setiadi Djaya Putra, and Tika Hanjani. "Heat gain reduction and cooling energy minimization through building envelope material." ARTEKS : Jurnal Teknik Arsitektur 8, no. 1 (2023): 73–82. http://dx.doi.org/10.30822/arteks.v8i1.1910.

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This study aims to reduce heat gain and minimise cooling energy through building envelope material as a passive design intervention strategy to achieve thermal comfort. Integrated Learning Building in the Faculty of Engineering, Universitas Indonesia, is used as a case study due to its air conditioning setting. First, the material characteristic of the building envelope is calculated using the Overall Thermal Transmission Value (OTTV) calculation to determine heat gain and the EDGE (Excellence in Design for Greater Efficiencies), a software to estimate cooling energy consumption. Then, a passi

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Kristi, Ant Ardath, Erwin Susanto, Agus Risdiyanto, et al. "Energy analysis of active photovoltaic cooling system using water flow." International Journal of Electrical and Computer Engineering (IJECE) 15, no. 1 (2025): 1. http://dx.doi.org/10.11591/ijece.v15i1.pp1-14.

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An active water-cooling system is one of several technologies that has been proven to be able to reduce heat losses and increase electrical energy in photovoltaic (PV) module. This research discusses a comparative experimental study of three pump activation controls in cooling of PV module with the aim of evaluating specifically the PV output power, net energy gain, water flow rate, and module temperature reduction. The three pump activation controls being compared are continuously active during the test, active based on setpoint temperature, and active by controlling the pump voltage using pu

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Egnatosyan, Siranush M., Naira M. Egnatosyan, and Lusine A. Yeritsyan. "Reducing heat gain in buildings by artificially lowering the outside air temperature through evaporative cooling." Vestnik MGSU, no. 7 (July 2023): 1114–22. http://dx.doi.org/10.22227/1997-0935.2023.7.1114-1122.

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Introduction. Systems for microclimate regulation in buildings consume a large amount of natural energy resources. Statistics show that 40 % of energy is used for heating, ventilation and air conditioning. This problem is directly related to the heating and cooling load of the building, i.e. it depends on the thermal engineering characteristics of building envelopes and the thermal protection of the building.  Materials and methods. To reduce the consumption of energy resources, the most common method is the thermal insulation of enclosing structures, increasing the thermal resista

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Sabina Maritza A P, Y. Mariana, and G. Suharjanto. "Energy-Efficient Apartment Design through Passive Cooling Strategies in Central Jakarta." IOP Conference Series: Earth and Environmental Science 1488, no. 1 (2025): 012129. https://doi.org/10.1088/1755-1315/1488/1/012129.

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Abstract This study presents a passive cooling design as a sustainable, climate-resilient, and energy-efficient solution for urban apartment buildings in tropical climates, focusing specifically on Central Jakarta. With rising temperatures and the intensifying Urban Heat Island effect, the integration of passive cooling strategies has become essential for enhancing energy efficiency and thermal comfort in densely populated areas. This research investigates the application of passive cooling techniques, including optimized building orientation, natural ventilation, vegetation, and green roofing

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Kristi, Ant. Ardath, Erwin Susanto, Agus Risdiyanto, et al. "Energy analysis of active photovoltaic cooling system using water flow." International Journal of Electrical and Computer Engineering (IJECE) 15, no. 1 (2025): 1–14. https://doi.org/10.11591/ijece.v15i1.pp1-14.

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An active water-cooling system is one of several technologies that has beenproven to be able to reduce heat losses and increase electrical energy inphotovoltaic (PV) module. This research discusses a comparativeexperimental study of three pump activation controls in cooling of PVmodule with the aim of evaluating specifically the PV output power, netenergy gain, water flow rate, and module temperature reduction. The threepump activation controls being compared are continuously active during thetest, active based on setpoint temperature, and active by controlling thepump voltage using pulse widt

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9

Zhang, Yi, Dong Ming Guo, and Qiao Yun Han. "Research of the Best Combination of Cooling Parameters in High Temperature Work Deep Stope." Advanced Materials Research 255-260 (May 2011): 3832–38. http://dx.doi.org/10.4028/www.scientific.net/amr.255-260.3832.

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When designing cooling engineering in deep stope, the three parameters, air temperature, air velocity and distance between cooling air and work place, are three key factors to determine cooling effect. Lowering air temperature, increasing air velocity and shortening the distance between cooling air and work place can all achieve the purpose of cooling work place. Not only to achieve the purpose of cooling, but also to reduce operating costs, save energy and extend the service life of cooling equipments, these three parameters should be chosen and combinated rationally, to gain the fine operati

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10

Jaramillo-Fernandez, Juliana, Gerardo Silva-Oelker, and David Astraili. "Passive radiative cooling materials integrated in renewable energy technologies for enhanced performance." EPJ Web of Conferences 309 (2024): 13007. http://dx.doi.org/10.1051/epjconf/202430913007.

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Radiative cooling involves decreasing the temperature of a body by emitting infrared radiation. When the heat loss from the emitting surface exceeds the heat gain. e.g. from the sun or the atmosphere, a passive net cooling effect occurs without the need for electricity or other power sources. Integrating radiative cooling materials with other renewable energy technologies such as photovoltaics and thermoelectric generators represents a promising frontier in sustainable energy systems. In this study, we explore the strategic utilization of the net cooling effect resulting from radiative cooling

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11

Hadi, Aseel, Ahmed Hashim Ah-yasari, and Dalal Hassan. "Fabrication of new ceramics nanocomposites for solar energy storage and release." Bulletin of Electrical Engineering and Informatics 9, no. 1 (2020): 83–86. http://dx.doi.org/10.11591/eei.v9i1.1323.

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The carbides nanostructures have huge applications in renewable energy fields such as the saving of solar energy and release which attributed to the good their properties (thermal, electrical, mechanical, optical and chemical). So, in this paper, the solar energy storage and release of carbides nanoparticles/water for building heating and cooling applications have been investigated with different concentrations of metals carbides nanoparticles (tantalum carbide-silicon carbide). The results showed that the melting and solidification times for thermal energy storage and release decrease with an

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Aseel, Hadi, Hashim Ahmed, and Hassan Dalal. "Fabrication of new ceramics nanocomposites for solar energy storage and release." Bulletin of Electrical Engineering and Informatics 9, no. 1 (2020): 83–86. https://doi.org/10.11591/eei.v9i1.1323.

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The carbides nanostructures have huge applications in renewable energy fields such as the saving of solar energy and release which attributed to the good their properties (thermal, electrical, mechanical, optical and chemical). So, in this paper, the solar energy storage and release of carbides nanoparticles/water for building heating and cooling applications have been investigated with different concentrations of metals carbides nanoparticles (tantalum carbide-silicon carbide). The results showed that the melting and solidification times for thermal energy storage and release decrease with an

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13

Seyed Salehi, Seyed Shahabaldin, Andrea Ferrantelli, Hans Kristjan Aljas, Jarek Kurnitski, and Martin Thalfeldt. "Impact of internal heat gain profiles on the design cooling capacity of landscaped offices." E3S Web of Conferences 246 (2021): 07003. http://dx.doi.org/10.1051/e3sconf/202124607003.

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Using passive methods in façade design for controlling heating and cooling needs is an important prerequisite for constructing cost-effective nearly zero-energy buildings. Optimal control of solar heat gains reduces the cooling demand and the size of the active cooling systems. However, applying such methods increases the impact of internal heat gains on the heat balance of the buildings, and accordingly also the dimensions of cooling systems. Therefore, a good model of internal heat gains is needed for a reliable and optimal sizing of the cooling sources. This paper aims to bring understandin

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Khir, Bachaier, İbrahim Uzun, and Bahadır Gemicioğlu. "Development and Evaluation of a Solar-Powered Cooling System Integrated with Energy Storage." Uluslararası Muhendislik Arastirma ve Gelistirme Dergisi 17, no. 2 (2025): 282–98. https://doi.org/10.29137/ijerad.1506901.

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Energy study is conducted on the design of a cooling system powered by solar energy and used to perform the cooling process of a convenience store according to local environmental conditions. The main object of the study is to optimize the characteristic design parameters of the air conditioning system by utilizing solar energy as an alternative to conventional electrical energy. Energy and mass balances are established for the different parts of the convenience store to determine the heat gain by heat transfer in the building and the cooling load required to maintain a constant inside air tem

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Rashid, Farhan Lafta, Muhammad Asmail Eleiwi, Hayder I. Mohammed, Arman Ameen, and Shabbir Ahmad. "A Review of Using Solar Energy for Cooling Systems: Applications, Challenges, and Effects." Energies 16, no. 24 (2023): 8075. http://dx.doi.org/10.3390/en16248075.

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Energy security refers to a country’s capacity to provide the energy resources essential to its wellbeing, including a reliable supply at an affordable costs. Economic growth and development cannot occur without access to reliable energy sources. Energy availability is a proxy for a country’s standard of living and a key factor in its economic development and technical progress. Solar power is the most reliable and cost-effective option when it comes to meeting the world’s energy needs. Solar-powered cooling systems are one example of how solar energy may be used in the real world. Solar-power

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Rustemli, Sabir, Zeki İlcihan, Gökhan Sahin, and Wilfried G. J. H. M. van Sark. "A novel design and simulation of a mechanical coordinate based photovoltaic solar tracking system." AIMS Energy 11, no. 5 (2023): 753–73. http://dx.doi.org/10.3934/energy.2023037.

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<abstract> <p>Various methods have been developed to increase electrical energy production gains in photovoltaic (PV) systems. These can be classified as solar tracking systems, cooling systems and methods of reducing the effect of shading. In order to maximise the PV energy yield, the PV systems must follow the sun. In this study, the effect of solar tracking systems on the energy yield gains of PV systems is investigated, and various types of solar tracking systems are discussed in detail. To ensure accuracte tracking of the postion of the sun, a new, low-cost, system has been de

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Hitchin, Roger. "Monthly utilisation factors for building energy calculations." Building Services Engineering Research and Technology 38, no. 3 (2016): 318–26. http://dx.doi.org/10.1177/0143624416681382.

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Monthly utilisation factors are the basis of many procedures for calculation of monthly heating or cooling requirements for buildings, notably in the procedure described in standard ISO 13790:2008 ‘Energy performance of buildings – Calculation of energy use for space heating and cooling’, which is widely used for the implementation of the Energy Performance of Buildings Directive in Europe. The procedures used to determine the values of the factors are invariably empirical rather than being derived from first principles, with the principal parameter being the ratio between monthly mean heat ga

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18

Ozan, Efe. "Shading of Yalova University Faculty of Engineering Building with Green Shield and Evaluation of Savings on Cooling Load." ZeroBuild Journal 01, no. 02 (2023): 43–58. https://doi.org/10.5281/zenodo.8200851.

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Buildings are a major part of human life, as well as global energy consumption and carbon emissions. In today’s world, passive strategies like green shield, which is a plant curtain that protects the facades of a building from heat gain, are of great importance for energy efficiency and conservation in buildings. In this study, the shading of the Yalova University Faculty of Engineering Building with the green shield was simulated and the potential savings from cooling consumption were evaluated. The green shield is a plant curtain that protects the southern and eastern facades of the bu

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19

Yaici, Dalia Dahbia, and Abdelouahab Bouttout. "Associated Use of Design of Experiments in Numerical Energy Simulation for Energy Use Optimization in Residential Buildings." Islamic University Journal of Applied Sciences VII, no. 1 (2025): 181–208. https://doi.org/10.63070/jesc.2025.012.

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This article investigates the optimization of energy consumption in residential buildings. The research begins by modelling a representative building configuration (F3) aligned with the Technical Regulatory Document (DTR C3.2/4) standards for heating and cooling. Dynamic thermal simulations assess its performance; while key input factors and their variation ranges are identified. A Design of Experiments (DOE) matrix streamlines simulations, and Analysis of Variance (ANOVA) identifies critical parameters. These parameters inform polynomial models to predict energy demands under various conditio

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Barley, C. Dennis, Paul Torcellini, and Otto Van Geet. "Design and Performance of the Van Geet Off-Grid Home." Journal of Solar Energy Engineering 126, no. 2 (2004): 738–43. http://dx.doi.org/10.1115/1.1644560.

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The Van Geet home near Denver, Colorado, demonstrates the successful integration of energy conservation measures and renewable energy supply in a beautiful, comfortable, energy-efficient, 295-m23,176-ft2 off-grid home in a cold, sunny climate. Features include a tight envelope, energy-efficient appliances, passive solar heating (direct gain and Trombe wall), natural cooling, solar hot water, and photovoltaics. In addition to describing this house and its performance, this paper describes the recommended design process of (1) setting a goal for energy efficiency at the outset, (2) applying rule

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21

Januszewski, Radosław, Rafał Różycki, and Grzegorz Waligóra. "Improving energy efficiency of supercomputer systems through software-aided liquid cooling management." Foundations of Computing and Decision Sciences 43, no. 2 (2018): 89–103. http://dx.doi.org/10.1515/fcds-2018-0007.

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Abstract Many fields of modern science rely more and more on the immense computing power of supercomputers. Modern, multi-thousand node systems can consume megawatts of electrical energy in highly uneven manner, challenging the data center infrastructure, both power and cooling coils. The traditional way of managing the infrastructure makes each subsystem of a data center (e.g. cooling) independent from all other in the way it relies only on local sensors to manage the infrastructure. The erratic nature of computing in a large data center makes this approach suboptimal. In the paper we show th

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Saeli, Manfredi, Clara Piccirillo, Ivan P. Parkin, Russell Binions, and Ian Ridley. "Optimisation of Thermochromic Thin Films on Glass; Design of Intelligent Windows." Advances in Science and Technology 75 (October 2010): 79–90. http://dx.doi.org/10.4028/www.scientific.net/ast.75.79.

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Theoretically thermochromic glazing has the potential to reduce energy consumption in buildings by allowing visible light for day lighting, reducing unwanted solar gain during the cooling season, while allowing useful solar gain in the heating season. In this study building simulation is used to predict the savings made by novel thermochromic glazing coatings compared to standard products, for locations with different climates. The results suggest that thermochromic glazing can have a significant energy saving effect compared to current approaches.

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Shean Ti Teen and Keng Wai Chan. "Design and Study of Domestic Cooling System through Roof Ventilation Assisted by Evaporative Cooling." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 98, no. 1 (2022): 82–91. http://dx.doi.org/10.37934/arfmts.98.1.8291.

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This study shows the evaluation of the indirect evaporative cooling system beneath the roof that aims to reduce the cooling load in buildings. As the energy demand for space cooling increases over the years, the evaporative cooler that has lower energy consumption can be a green technology for space cooling compared with air-conditioning systems. An example of an evaporative roof cooling method that is commonly used is a rooftop sprinkler system. This study emphasizes the evaluation of the performances of an indirect evaporative cooler and rooftop sprinkler system in terms of temperature reduc

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Ahn, Ki Uhn, Deuk-Woo Kim, Seung-Eon Lee, Chang-U. Chae, and Hyun Mi Cho. "Temporal Segmentation for the Estimation and Benchmarking of Heating and Cooling Energy in Commercial Buildings in Seoul, South Korea." Sustainability 14, no. 17 (2022): 11095. http://dx.doi.org/10.3390/su141711095.

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The building sector is responsible for more than one-third of total global energy consumption; hence, increasingly efficient energy use in this sector will contribute to achieving carbon neutrality. Most existing building-energy-benchmarking methods evaluate building energy performance based on total energy use intensity; however, energy usage in buildings varies with the seasons, and as such, this approach renders the evaluation of cooling and heating energy difficult. In this study, an information gain-based temporal segmentation (IGTS) method was used to identify the seasonal transition tim

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Rantanen, Olli, Socorro Järvistö, Ilkka Valovirta, and Juha Vinha. "Cooling Demand and Indoor Temperatures of a Detached House in Southern Finland: Feasibility of a Monthly calculation Method." Journal of Physics: Conference Series 2654, no. 1 (2023): 012059. http://dx.doi.org/10.1088/1742-6596/2654/1/012059.

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Abstract The aim of this study was to compare dynamic thermal modelling with a monthly calculation method based on a European standard and Finnish regulations. Effect of thermal insulation level of a building envelope, solar shading, solar heat gain coefficient and window area on cooling demand were also studied. Increasing the thermal insulation of building shell increased indoor temperatures and hence cooling demand considerably. Solar shading by blinds between window panes decreased indoor temperatures effectively, indicating the performance of passive cooling in Finnish climate. There were

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He, Cheng, Wei Tian, and Zebiao Shao. "Impacts of Courtyard Envelope Design on Energy Performance in the Hot Summer–Cold Winter Region of China." Buildings 12, no. 2 (2022): 173. http://dx.doi.org/10.3390/buildings12020173.

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This paper aims to investigate the effects of courtyard envelope design on the energy performance of office buildings in the hot summer–cold winter region of China. Two types of courtyard buildings were simulated with 200 energy models by changing the following variables: window–wall ratio (south, north, east, and west walls), window U-value, wall U-value, solar heat gain coefficient, and orientation. The treed Gaussian process (TGP) sensitivity analysis method was employed to quantify the contributions of parameters related to courtyard design that result in the changes of annual cooling, hea

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Michalak, Piotr. "Impact of Air Density Variation on a Simulated Earth-to-Air Heat Exchanger’s Performance." Energies 15, no. 9 (2022): 3215. http://dx.doi.org/10.3390/en15093215.

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Due to their simple design and reliable operation, earth-to-air heat exchangers (EAHE) are used in modern buildings to reduce ventilation heat losses. EAHE operation in atmospheric conditions results in variation in ambient air temperature and pressure affecting air density. The paper presents the study on the impact of ambient air density variation on the calculated hourly air temperature at the EAHE outlet and the resulting energy use for space heating and cooling of an exemplary residential building. The ground temperature was computed from the model given in EN 16798-5-1. Then, air density

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Nasruddin, Aldi Suyana, Budihardjo, and Arnas. "Optimization Position and Tilt Angle for Automatic Tracking Solar Collector in Solar Thermal Cooling System of Building MRC FTUI." Applied Mechanics and Materials 780 (July 2015): 75–80. http://dx.doi.org/10.4028/www.scientific.net/amm.780.75.

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The solar thermal cooling system is expected to replace the utilization of conventional cooling system, particularly the vapour compression system. This cooling system is power-efficient, refrigerant environmentally friendly and able to use the abundant potential of solar energy. Hence, the optimization of this cooling system is necessary in order to obtain the best performance. For that purpose, this study focus on the simulation phase of the solar thermal cooling system utilization in MRC FTUI building as well as the optimization of solar collector applying EnergyPlus and GenOpt software. Th

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Srithongchai, Thanun. "Role of Layout in Improving Building Thermal Performance in Bangkok." Journal of Sustainable Architecture and Civil Engineering 29, no. 2 (2021): 189–204. http://dx.doi.org/10.5755/j01.sace.29.2.29410.

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Selecting a building layout is a fundamental task in the early stage of the architectural design process. High thermal mass buildings with well-insulated envelopes are a common solution for colder climates; however, thinner wall construction and lower mass in most tropical architecture means that a well-designed building layout with good consideration of contextual factors is essential to enhance passive cooling and to decrease heat gain by solar radiation. Building layout factors of perimeter and wall surface area are pivotal in long-term energy utilization. This simulation-based research emp

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Dewi, Cynthia Permata. "ANALISIS PENGARUH TIPE INTERNAL SHADING SEBAGAI STRATEGI PENDINGINAN PASIF PADA BANGUNAN." BANGUNAN 26, no. 1 (2021): 1. http://dx.doi.org/10.17977/um071v26i12021p1-6.

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Abstrak: Strategi pendinginan pasif pada bangunan menjadi salah satu alternatif dalam memperoleh kenyamanan termal dengan meminimalkan konsumsi energi pendinginan bangunan. Posisi Indonesia yang dilewati oleh garis khatulistiwa mengakibatkan terjadinya penyinaran matahari sepanjang tahun. Hal ini memerlukan sebuah perlakuan khusus terhadap bukaan pada fasad bangunan. Penelitian ini bertujuan untuk menganalisis dan melihat pengaruh tipe internal shading pada interior bangunan terhadap variabel solar gain bangunan. penggunaan tipe shading berupa venetian blind, roller shades dan drapes akan diap

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Altaf, Madeeha, and Frances Hill. "IDENTIFYING OPTIMUM GLAZING PROPERTY FOR CONSERVING ENERGY IN HOT SEMI-ARID CLIMATE REGIONS." Journal of Green Building 16, no. 1 (2021): 91–101. http://dx.doi.org/10.3992/jgb.16.1.91.

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ABSTRACT Globally, the building sector is responsible for 40% of energy use and 30% of GHG emissions. The greatest portion of the energy is used during the operational phase (use stage) of buildings. The building envelope, especially the glazed components, plays an important role in determining the energy requirement of buildings. These glazed parts of the building envelope exposed to direct solar radiation are most vulnerable to heat loss and gain. Heat loss and gain through the glazing material depend on glazing properties (U-value, SHGC, VT) and building energy use changes according to the

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Sairam, R., P. L. Raviteja, and A. Naresh. "Case Study: Performance Assessment of Various Sun Shades for Hot-Dry Climate." Advanced Materials Research 816-817 (September 2013): 875–81. http://dx.doi.org/10.4028/www.scientific.net/amr.816-817.875.

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There are many reasons to control the amount of sunlight admitted into a building. In warm, sunny climates excess solar gain may result in high cooling energy consumption. In cold and temperate climates winter sun entering south-facing windows can positively contribute to passive solar heating; and in nearly all climates controlling and diffusing natural Illumination will improve day lighting. A Well-designed sun control and shading devices can dramatically reduce building peak heat gain and cooling requirements and improve the Natural lighting quality of building interiors. In this casestudy

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Kakaras, E., A. Doukelis, A. Prelipceanu, and S. Karellas. "Inlet Air Cooling Methods for Gas Turbine Based Power Plants." Journal of Engineering for Gas Turbines and Power 128, no. 2 (2005): 312–17. http://dx.doi.org/10.1115/1.2131888.

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Background: Power generation from gas turbines is penalized by a substantial power output loss with increased ambient temperature. By cooling down the gas turbine intake air, the power output penalty can be mitigated. Method of Approach: The purpose of this paper is to review the state of the art in applications for reducing the gas turbine intake air temperature and examine the merits from integration of the different air-cooling methods in gas-turbine-based power plants. Three different intake air-cooling, methods (evaporative cooling, refrigeration cooling, and evaporative cooling of precom

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Rahman, Haolia, and Hwataik Han. "Correlation of Ventilative Cooling Potentials and Building Energy Savings in Various Climatic Zones." Energies 12, no. 6 (2019): 968. http://dx.doi.org/10.3390/en12060968.

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The introduction of cool outdoor air can help in reducing the energy consumption for cooling during summer. Ventilative cooling potentials (VCPs) have been defined in various ways in the literature to represent potential cooling hours in specified outdoor temperature ranges. However, the energy-saving potential of ventilative cooling can differ between buildings in the same climatic zone depending on the buildings’ thermal characteristics and system operations. In this study, new VCPs are introduced with an index of temperature shift based on adaptive thermal comfort. This index can be determi

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Park, Doo-Yong, Hyun-Je Lee, Su-In Yun, and Sang-Min Choi. "Simulation Analysis of Daylight Characteristics and Cooling Load Based on Performance Test of Covering Materials Used in Smart Farms." Energies 14, no. 19 (2021): 6331. http://dx.doi.org/10.3390/en14196331.

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In this study, seven of the most commonly applied covering materials in smart farms are selected as the representative samples for analysis, namely, glass, soft film (polyethylene, PE), soft film (polyolefin, PO), rigid plastic film (ethylene tetra fluoro ethylene, ETFE), rigid plastic sheet (poly methyl methacrylate, PMMA), rigid plastic sheet (polycarbonate, PC double layer), and woven film. For each covering material, visible light transmittance and reflectivity, solar radiation transmittance and reflectivity, thickness, solar heat gain coefficient, and the coefficient of heat transmission

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Ding, Yitong, Chengxi Zhong, Fengying Yang, et al. "Low energy consumption thermochromic smart windows with flexibly regulated photothermal gain and radiation cooling." Applied Energy 348 (October 2023): 121598. http://dx.doi.org/10.1016/j.apenergy.2023.121598.

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Liu, Zheng Quan. "Measurement and Test Facility for Solar Heat Gain of Building-Integrated Photovoltaics (BIPV) Modules." Advanced Materials Research 230-232 (May 2011): 64–68. http://dx.doi.org/10.4028/www.scientific.net/amr.230-232.64.

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For achieving the maximum energy efficiency of Building-integrated Photovoltaics (BIPV) buildings, the Solar Heat Gain (SHG) through the BIPV modules should be measured accurately. A solar calorimetry hot box was designed to test the SHG through the BIPV modules in this paper, which could measure the incoming solar and long-wave radiation various BIPV module configurations. Combined with the electric energy production, a new concept of ratio of solar heat gain to power energy generation efficiency was presented in this paper, which can be characterized as the design indicator of BIPV module’s

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Abaza, Hussein, and Ihab Sa'ad. "Adaptive Low-e Double Glazing Window." Journal of Green Building 1, no. 4 (2006): 104–11. http://dx.doi.org/10.3992/jgb.1.4.104.

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This paper investigates the thermal performance of a new adaptive window which is seasonally reversible. The new window is similar in construction to the regular double-hung low-e windows, but can reverse its properties. In this window, the low-e coating faces the inside during the heating season, which reflects the infrared radiation to the inside. During the cooling season, the low-e coating faces the outside to reflect the outside heat. This window was tested in two test cells to evaluate its thermal performance. WINDOW5.2a software was used to predict the window thermal properties and BEAN

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Lapisa, Remon, Andre Kurniawan, Jasman Jasman, et al. "Experimental investigation of water to air heat exchanger performance as passive cooling strategy on ventilation system in tropical region." EUREKA: Physics and Engineering, no. 1 (January 19, 2023): 32–41. https://doi.org/10.21303/2461-4262.2023.002591.

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This experimental study aims to investigate and analyze the performance of a Water-Air Heat Exchanger that functions as passive cooling in a building ventilation system in the tropics. Before being blown into the room, the high-temperature outdoor air will be passively cooled by the lower-temperature water. Air driven by an Inline Duct Fan with a constant mass flow rate of 4.68 cubic meters per minute flows through a PVC hose as a heat exchanger inserted into a full water reservoir with a diameter of 100 cm and a height of 110 cm. A heat exchanger hose with a diameter of 6.35 cm and a length o

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Ko, Jae-Sub, Jun-Ho Huh, and Jong-Chan Kim. "Improvement of Energy Efficiency and Control Performance of Cooling System Fan Applied to Industry 4.0 Data Center." Electronics 8, no. 5 (2019): 582. http://dx.doi.org/10.3390/electronics8050582.

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This paper proposes a control method to improve the energy efficiency and performance of cooling fans used for cooling. In Industry 4.0, a large number of digital data are used, and a large number of data centers are created to handle these data. These data centers consist of information technology (IT) equipment, power systems, and cooling systems. The cooling system is essential to prevent failure and malfunction of the IT equipment, which consumes a considerable amount of energy. This paper proposes a method to reduce the energy used in such cooling systems and to improve the temperature co

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Park, Bo Rang, Jongin Hong, Eun Ji Choi, Young Jae Choi, Choonyeob Lee, and Jin Woo Moon. "Improvement in Energy Performance of Building Envelope Incorporating Electrochromic Windows (ECWs)." Energies 12, no. 6 (2019): 1181. http://dx.doi.org/10.3390/en12061181.

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The present study sets out to review the thermal and optical properties of electrochromic windows (ECWs) through an analysis of the improvement in the energy performance of a building resulting from their application. The performance analysis was based on the change in the room temperature according to the solar transmittance and the orientation of the ECWs, the energy consumptions of the building’s heating/cooling systems, and that of the building’s lighting according to the visible light transmittance (VLT). To achieve this, the Quick Energy Simulation Tool (eQUEST), a building energy interp

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Melson, Tobias, Hans-Thomas Janka, Alexander Summa, Robert Bollig, Andreas Marek, and Bernhard Müller. "Exploring the explosion mechanism of core-collapse supernovae in three dimensions." Proceedings of the International Astronomical Union 12, S329 (2016): 424. http://dx.doi.org/10.1017/s1743921317001181.

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AbstractWe present the first successful simulations of neutrino-driven supernova explosions in three dimensions (3D) using the Vertex-Prometheus code including sophisticated energy-dependent neutrino transport. The simulated models of 9.6 and 20 solar-mass iron-core stars demonstrate that successful explosions can be obtained in self-consistent 3D simulations, where previous models have failed. New insights into the supernova mechanism can be gained from these explosions. The first 3D model (Melson et al. 2015a) explodes at the same time but more energetically than its axially symmetric (2D) c

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Viriezky, Viata, Ova Candra Dewi, and Amardeep M. Dugar. "Lighting Energy Reduction by Optimizing Daylight while Maintaining Cooling Load in Tropical Educational Building, Depok, Indonesia." Journal of Sustainable Architecture and Civil Engineering 32, no. 1 (2023): 145–61. http://dx.doi.org/10.5755/j01.sace.32.1.32267.

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This study aims to reduce the lighting energy consumption in educational buildings while avoiding an increase in cooling load. The Faculty of Engineering building in Universitas Indonesia, Depok, West Java, Indonesia is used as a case study. Daylight optimization can have an impact on lighting energy, which is the largest energy consumer in educational buildings. However, given Indonesia’s tropical climate, daylight leading to heat gain is a concern. Current passive design interventions for controlling daylight and heat gain include light shelves, clerestories, and glazing materials. Daylighti

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Bugeja, Ryan, Luciano Mule’ Stagno, and Ioannis Niarchos. "Photovoltaic backside cooling using the space inside a conventional frame (IPCOSY)." Future Energy 2, no. 3 (2023): 20–28. http://dx.doi.org/10.55670/fpll.fuen.2.3.3.

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Inefficiencies present in solar cells result in most of the absorbed energy being converted into heat, causing an increase in cell temperature, which leads to a further reduction in efficiency. Various cooling technologies can be found in the literature; however, these all come with their own challenges. In this research, we have designed a Photovoltaic (PV) panel that incorporates backside water cooling by creating a water chamber in the empty space inside the Aluminium frame. This panel was termed IPCoSy (Innovative Photovoltaic Cooling System). It was tested against a conventional cooling s

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Girish, Kr. Meena, Chaurasia Dr.PBL, and Mr.P.N.Mathur. "PASSIVE COOLING TECHNIQUES OF OLD TIMES (HAWA MAHAL)." International Journal of Advances in Engineering & Scientific Research 1, no. 4 (2014): 17–19. https://doi.org/10.5281/zenodo.10720284.

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  <em>Passive Cooling</em><em> </em><em>is a building design approach that focuses on heat gain control and heat dissipation in a building in order to improve the indoor thermal comfort with low or nil energy consumption. This approach works either by preventing heat from entering the interior (heat gain prevention) or by removing heat from the building (natural cooling). </em><em>When it comes to </em><em>earth friendly ideas, our ancestors from around the world had some pretty savvy concepts that we can still use in our modern world. we have to understand the techniques b

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Ranđelović, Dušan, Miomir Vasov, Anđela Bogdanović, and Vladan Jovanović. "APPLICATION OF BRISE-SOLEIL IN ARCHITECTURE: A CASE STUDY OF A NEWLY DESIGNED RESIDENTIAL NEIGHBORHOOD IN BAO&Scaron;IĆI CONSIDERING BIOCLIMATIC AND URBAN PLANNING PARAMETERS." Journal of the Faculty of Civil Engineering and Architecture 40, no. 1 (2025): 95–105. https://doi.org/10.62683/zrgaf40.8.

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&lt;p&gt;Global warming and rising energy demand make brise-soleil systems increasingly important in energy-efficient cooling and reducing carbon emissions in warm climates. This study examines a newly designed residential neighborhood in Bao&amp;scaron;ići, Montenegro, characterized by a Mediterranean climate with hot, dry summers and mild winters. The effectiveness of brise-soleil systems in improving energy efficiency and thermal comfort is widely documented; however, there is little research on the performance of such systems in specific residential applications across a range

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Siyahi, Mehdi, Hadi Siyahi, Mohsen Fallah, and Zahra Mohammadi. "Thermodynamic Optimization and Energy-Exergy Analyses of the Turboshaft Helicopter Engine." International Journal of Thermodynamics 27, no. 3 (2024): 15–25. http://dx.doi.org/10.5541/ijot.1458027.

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Energy demand is a critical contemporary concern, with significant implications for the future. While exploring renewable or sustainable energy sources offers potential solutions, optimizing energy consumption in existing power generation systems is also key. Aviation accounts for a substantial portion of energy demand, underscoring the importance of energy efficiency in this sector. Conventional energy analyses may be misleading; hence, employing exergy-based analyses provides a clearer understanding of energy consumption. Also, most of these analyses do not include the effect of the turbine

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Zhang, Gui Chen. "Energy Performance Simulation Study on VAV Air Condition System at SPSU Campus Office Building with EnergyPlus." Applied Mechanics and Materials 361-363 (August 2013): 249–52. http://dx.doi.org/10.4028/www.scientific.net/amm.361-363.249.

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Based on the air condition systems theorem, by EnergyPlus7.0 the office building models were built up with the variable air volume (VAV) and constant air volume (CAV) systems separately at SPSU campus in the USA. The weather datum from Department of Energy US were used to simulate the energy consumption performance both daily and annually. Results show that the VAV system saves the sensible cooling rate 19.25% compared with the CAV one in the hottest day. The VAV system saves the sensible cooling rate 8.95% and reduces the outdoor infiltration sensible heat gain about 35.06% yearly. The VAV te

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Pereira, Cleta. "Passive Cooling System to Provide Thermal Comfort." International Journal for Research in Applied Science and Engineering Technology 10, no. 6 (2022): 1383–92. http://dx.doi.org/10.22214/ijraset.2022.44055.

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Abstract: In a country like India, where temperatures may reach 40 degrees Celsius, everyone wants relief from the sweltering heat, but only a few can afford it. As a result, passive cooling is a low or no energy approach that relies on heat gain management and heat dispersion to offer thermal comfort. Heat Protection, Heat Modulation, and Heat Dissipation are the three basic types of passive cooling systems. The combined effect of approaches from each category on a prototype room is examined in this research, which includes shading and green roofs for heat protection, thermal mass (PCM) for h

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González-Avilés, Ángel Benigno, Carlos Pérez-Carramiñana, Antonio Galiano-Garrigós, and María Isabel Pérez-Millán. "Energy Benefits of Tourist Accommodation Using Geodesic Domes." Buildings 14, no. 2 (2024): 505. http://dx.doi.org/10.3390/buildings14020505.

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Over the last decade there has been a proliferation of glamping architecture. This study analyses the energy performance of geodesic domes for use in tourist glamping compared to more conventional prismatic architectural solutions. The energy analysis of geodesic domes applied to this type of singular construction project currently lacks detailed studies that provide conclusions about their relevance and suitability with respect to other types of architecture. The main objective of this research is to demonstrate the energy benefits of tourist accommodations that use geodesic structures compar

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