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Journal articles on the topic 'ASHRAE'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Hepple, Ryan, Siliang Yang, Sanober Khattak, Zi Qian, and Deo Prasad. "Comparative Analysis of CIBSE Admittance and ASHRAE Radiant Time Series Cooling Load Models." CivilEng 3, no. 2 (2022): 468–79. http://dx.doi.org/10.3390/civileng3020028.

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Due to the impacts of carbon emissions on climate change and the expected dramatic increase in global cooling demand by 2050, it is of a paramount importance that the required energy to cool buildings is accurately predicted. This ensures that equipment is appropriately sized, which ultimately reduces energy consumption and global carbon emissions. CIBSE and ASHRAE standards are both widely adopted for cooling load predictions, but they adopt different calculation methods, with CIBSE adopting admittance and ASHRAE adopting radiant time series (RTS), which produce significantly different result

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2

He, Yaling, Yixing Chen, Zhihua Chen, Zhang Deng, and Yue Yuan. "Impacts of Occupant Behavior on Building Energy Consumption and Energy Savings Analysis of Upgrading ASHRAE 90.1 Energy Efficiency Standards." Buildings 12, no. 8 (2022): 1108. http://dx.doi.org/10.3390/buildings12081108.

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Commercial prototype building models were developed by the United States Department of Energy (DOE) to analyze the energy savings of the ASHRAE 90.1 standard. However, in the DOE models, occupant behavior inputs were deterministic and the stochasticity of occupant behavior was not fully characterized. This study evaluated the impacts of stochastic occupant behavior on building energy consumption and energy savings analysis from upgrading the ASHRAE 90.1-2016 to 2019 in sixteen climate zones in the United States (U.S.). Three occupant behavior styles (austerity, normal, and wasteful) were defin

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3

O. Efeoma, Meshack, and Ola Uduku. "Assessing thermal comfort and energy efficiency in tropical African offices using the adaptive approach." Structural Survey 32, no. 5 (2014): 396–412. http://dx.doi.org/10.1108/ss-03-2014-0015.

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Purpose – The purpose of this paper is to adduce the most appropriate thermal comfort assessment method for determining human thermal comfort and energy efficient temperature control in office buildings in tropical West Africa. Design/methodology/approach – This paper examines the Adaptive Thermal Comfort Standard, from its research evolution to its contemporary use as an environmental design assessment Standard. It compares the adaptive component of ASHRAE Standard 55 and the European CEN/EN 15251. It begins by reviewing relevant literature and then produces a comparative analysis of the two

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Sujatmiko, Wahyu, Hermawan Kresno Dipojono, F. X. Nugroho Soelami, and Soegijanto. "In Situ Measurement of Thermal Resistance of Building Envelope at the Residential Occupancy in Indonesia." Applied Mechanics and Materials 771 (July 2015): 191–94. http://dx.doi.org/10.4028/www.scientific.net/amm.771.191.

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Abstract. This paper presents the measurement results of three building wall materials which are commonly used for residential housings in Indonesia, namely clay brick, batako (concrete brick), and precast concrete. In-situ measurement of the steady state thermal flow (heat flux) at building walls (envelopes) is conducted in order to determine the thermal resistance of building wall according to ASTM C1155. The results show that all three building materials having a thermal resistance values are far below the energy conservation provisions of ASHRAE 90.1 and especially when compared to the pro

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5

Bullock, C. E. "1984 ASHRAE meeting." International Journal of Refrigeration 8, no. 1 (1985): 58–60. http://dx.doi.org/10.1016/0140-7007(85)90147-1.

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6

Ilomets, Simo, Targo Kalamees, and Fitsum Tariku. "Indoor climate loads for dwellings in different cold climates to assess hygrothermal performance of building envelopes." Canadian Journal of Civil Engineering 46, no. 11 (2019): 963–68. http://dx.doi.org/10.1139/cjce-2019-0079.

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This study tests the performance of an EN ISO 13788 occupancy modified model for indoor temperature and humidity in dwellings by comparing the model with the measured indoor temperature and relative humidity in Canada. The performance of EN ISO 13788 occupancy modified model is tested in 13 outdoor climates and compared with the simplified approach given in the ASHRAE 160 standard. It was found that the Estonian model’s proposed indoor temperature profile works reasonably well in accordance with the measured indoor temperatures in Vancouver, Canada, which are dependent on the outdoor climate;

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Shin, Euntak, Yoonseong Kim, Young-sang Kim, and Wonjun Choi. "Uncertainty quantification of borehole heat exchanger design length based on a global sensitivity analysis." E3S Web of Conferences 396 (2023): 03013. http://dx.doi.org/10.1051/e3sconf/202339603013.

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Ground heat exchangers are essential components of ground-source heat pump systems. One of the most-used ground heat exchanger types is a borehole heat exchanger (BHE). Many parameters, such as the building thermal loads, ground thermal properties, and BHE components, influence the required BHE length. Therefore, understanding how individual parameter uncertainties are propagated to the output is counterintuitive. In this study, a global sensitivity analysis (GSA) was performed using the framework of the American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASHRAE) BHE de

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8

Fong-Silva, Waldyr, Carlos Severiche-Sierra, and Wendy Fong-Amarís. "Sistemas de acondicionamiento de aire y ventilación como foco infeccioso de SARS CoV-2 en hospitales, clínicas e instituciones de salud." IPSA Scientia, revista científica multidisciplinaria 5, no. 1 (2020): 28–35. http://dx.doi.org/10.25214/27114406.960.

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En el presente trabajo se hace un análisis de la forma como los sistemas de acondicionamiento de aire, calefacción y ventilación se convierten en posibles focos infecciosos de transmisión del Sars Cov-2 debido a los ventiladores internos con los que cuentan y que generan la corriente de aire forzada que refresca, calienta o ventila el recinto o habitación. También se prsentan 4 elementos sobre los cuales se deben hacer las auditorías en hospitales y centros de salud para que no se conviertan en fuentes infecciosas, como lo son: a) diseño de condiciones ambientales según los criterios de Ashrae

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9

Mohammed, Mohammed K., and Nassir D. Mokhlif. "Mathematical and Computer Models For Thermodynamic Properties of Methane R-50, Ethylene R-1150, and Propylene R- 1270." Tikrit Journal of Engineering Sciences 13, no. 2 (2006): 93–118. http://dx.doi.org/10.25130/tjes.13.2.05.

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A set of computer methods for calculating densities, vapor pressures, enthalpies, internal energies and entropies of methane (R-50), ethylene (R-1150), and propylene (R-1270) to be described. Formulation and solution of equations for these thermodynamic properties to be presented first based on what published by ASHRAE. The data obtained from these subroutines showed very small and acceptable percentage errors when compared with ASHRAE data and what available in the literature. These results ensure that these subroutines are acceptable.

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10

Zhuang, Hao, Zhijun Zou, Li Wang, et al. "Investigation of Air Change Rate in a Single Room Using Multiple Carbon Dioxide Breathing Models in China: Verification by Field Measurement." Buildings 13, no. 2 (2023): 459. http://dx.doi.org/10.3390/buildings13020459.

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It is difficult to accurately measure the air exchange rate (AER) in residential and office buildings during occupation via on-site field measurement. The tracer gas method was widely applied to estimate the AER in these buildings, and human metabolic carbon dioxide (CO2) was often used as a tracer gas in different models. This study introduced three models (the ASHRAE model, the ASHRAE China-specific modified model, and the BMR model), which were proposed to estimate the AER based on exhaled CO2. We verified these models by comparing the exhaled CO2-based AER with AER from field measurements

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11

Donaldson, Barry. "IESNA Cosponsors Ashrae Energy Efficiency Standard: Notes on ASHRAE/IES 90.1-1989." Lighting Design + Application 20, no. 8 (1990): 10–13. https://doi.org/10.1177/036063259002000803.

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12

Lilly, Jerry, and Jerry Lilly. "Breakout from HVAC ductwork." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 264, no. 1 (2022): 683–94. http://dx.doi.org/10.3397/nc-2022-799.

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Noise radiated by HVAC ductwork is becoming more important with the recent trend to eliminate ceilings in many office buildings. The ASHRAE Applications Handbook has provided a method for calculating breakout from ductwork since 1987. This method requires determining the duct wall transmission loss, which is not the same at the conventional transmission loss obtained using ASTM E90 because of the shape of the duct wall and because the sound field inside the duct is not random incidence. This methodology assumes that the sound level inside the duct is the same throughout the entire duct length,

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13

Ashhar, M. Z. M., and C. H. Lim. "Thermal performance of reflective insulation system and comparison against ASHRAE Standard." IOP Conference Series: Materials Science and Engineering 1278, no. 1 (2023): 012013. http://dx.doi.org/10.1088/1757-899x/1278/1/012013.

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Abstract The trend in building energy consumption has been steadily increasing and will continue to rise significantly in the future. The application of a reflective insulation system in roof assembly is proven to be effective in reducing heat gain across the roof and can enhance indoor thermal comfort. This paper presents the development of an Indoor Solar Simulator to evaluate the thermal resistance (RSI value) of reflective insulation systems for roof assemblies. This paper also compares RSI values obtained experimentally and the RSI values listed in ASHRAE Standard. The roof assemblies stu

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14

Theebaa, PA, and S. Paneerchelvam. "Thermal Comfort Assessment of Secondary School Classes In Kuala Lumpur, Malaysia." International Journal of Environmental Sciences 11, no. 7s (2025): 195–213. https://doi.org/10.64252/9pdcn475.

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Global warming causes rapid temperature and precipitation variations, with El Niño being a prolonged cycle of this phenomenon. In Malaysia, over 250 schools closed due to extreme heat waves caused by El Niño. This study monitored the thermal comfort of classrooms at National High School Bukit Jalil and National High School Taman Yarl in Kuala Lumpur, selected for their typical design, orientation, and floor levels. The study aimed to evaluate indoor environmental conditions in these classrooms based on ASHRAE Standard 55 and ISO EN 7730, assess students’ thermal comfort perceptions, and identi

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15

Saha, Abeer. "Dynamics of Doubt: How ASHRAE Engineers Became Ozone Skeptics, 1974–89." Technology and Culture 66, no. 1 (2025): 135–60. https://doi.org/10.1353/tech.2025.a951053.

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abstract: This article examines the American Society of Heating, Refrigeration, and Air-conditioning Engineers (ASHRAE) and its response to the ozone crisis in the 1970s, highlighting the science-skepticism that hindered responses to environmental issues in the twentieth century. Although well-positioned to address ozone depletion by developing safer chemical alternatives, ASHRAE resisted regulatory changes, framing concerns over CFC emissions as an attack on engineering and American technological dominance. Their rhetoric of doubt persisted for over a decade, even after corporations like DuPo

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16

Rahman, Haolia, Agus Sukandi, Nasruddin Nasruddin, Arnas Arnas, and Remon Lapisa. "Mechanical Ventilation Control Based on Estimated occupancy using a Carbon Dioxide Sensor." TEKNIK 41, no. 3 (2020): 232–38. http://dx.doi.org/10.14710/teknik.v41i3.33416.

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Ventilation is an important aspect to maintain good indoor air quality in a building. However, excessive ventilation causing high energy consumption of the HVAC system. The ASHRAE Standard provides a guideline to set the ventilation rate that depends on the occupants' number and space. Thus, quantification of the number of occupants is required to regulate the ventilation rate. In this study, the estimated number of occupants was estimated using a Bayesian MCMC method based on CO2 levels. The mass balance equation of the CO2 is used as a model for the calculation of Bayesian MCMC. The Bayesian

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17

Kurniawan, Ratna Dwi. "Evaluasi Kebutuhan Udara Ventilasi Untuk Kamar Mesin Karena Penggantian Rpm Motor Penggerak Axial Fanpada Kapal Perintis 2000GT Berpenggerak Mesin Induk (Main Engine) 2 x 1400HP." Eksergi 15, no. 1 (2019): 7. http://dx.doi.org/10.32497/eksergi.v15i1.1461.

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<p>Sistem ventilasi udara untuk kamar mesin (engine room) memegang peranan sangat pentinng sekali, sebagai suplai udara pembakaran mesin dan mendinginkan udara di ruang kamar mesin. Jika suplai bahan bakar kekurangan udara/oksigen (O2) berpengaruh pada power yang dihasilkan, sehingga effisiensi turun. Latar belakang penulisan karena adanya penggantian putaranmotor fan/blower penyuplai udara ventilasi untuk main engine, sehingga perlu di lakukan perhitungan ulang untuk mendapatkan kebutuhan udara yang sesuai dengan kebutuhan. Metode ASHRAE dan ISO 8861 telah digunakan peneliti lain pada k

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18

Zhang, Tianyu, Xianyan Chen, Fen Zhang, et al. "A Case Study of Refined Building Climate Zoning under Complicated Terrain Conditions in China." International Journal of Environmental Research and Public Health 19, no. 14 (2022): 8530. http://dx.doi.org/10.3390/ijerph19148530.

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In this study, we first found that the few and sparse meteorological stations used in earlier comprehensive studies of building climate zoning in a complicated terrain area like Chongqing, China, may lead to the inapplicability of building energy efficiency standards in some areas. To address this issue, the study used daily data from 1908 extremely dense surface meteorological stations from 2011 to 2020 in Chongqing, China. In order to conduct fine zoning of building climate in Chongqing, China, GB50176-2016 and ASHRAE standard 169-2021 were employed, respectively. The findings indicated that

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19

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.

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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

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20

Huang, B. J., and S. W. Hsieh. "An Automation of Collector Testing and Modification of ANSI/ASHRAE 93-1986 Standard." Journal of Solar Energy Engineering 112, no. 4 (1990): 257–67. http://dx.doi.org/10.1115/1.2929932.

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The steady-state performance test of solar collectors using ANSI/ASHRAE 93-1986 Standard was revised and an automation for the testing was carried out in the present study in order that the test can be easily performed outdoors in areas with variable weather conditions. It was shown that the 95 percent settling time of the collector τ95 can be adopted as the time basis in the selection of steady-state period for the test. To make the best use of the time available for the testing, the steady-state period defined by ANSI/ASHRAE 93-1986 Standard was changed to the τ95 plus five minutes, or ten m

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21

Hill, James. "The Legacy of ASHRAE Research." HVAC&R Research 3, no. 4 (1997): 309–10. http://dx.doi.org/10.1080/10789669.1997.10391379.

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22

Brandemuehl, Michael. "ASHRAE Research Toward Sustainable Buildings." HVAC&R Research 10, no. 1 (2004): 1–3. http://dx.doi.org/10.1080/10789669.2004.10391086.

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23

Smedegård, Ole Øiene, Bjørn Aas, Jørn Stene, and Laurent Georges. "Measurement and Analysis of Evaporation in Indoor Swimming Pools: Comparison with the ASHRAE’s Activity Factor." E3S Web of Conferences 362 (2022): 14004. http://dx.doi.org/10.1051/e3sconf/202236214004.

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The evaporation rate from the swimming pool is a main parameter influencing the energy use in swimming facilities. Quantifying this phenomenon is crucial when modelling the facility in Building Performance Simulation. This study investigates the accuracy of ASHRAE equation using field measurements. This equation is widely used and implemented in BPS tools, such as the pool model in IDA ICE. The investigated dataset was based on two different indoor swimming pool facilities in Norway. It includes in total 75 swimming lessons (i.e., occupied pool) and 477 hours of unoccupied operation. While ASH

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Alhoush, Abdulhakiem, Samah Alghoul, and Jamal Hawisa. "Estimation of Cooling Load Temperature Diffrence for Exterior Walls of Buildings Located in Tripoli, Libya." Solar Energy and Sustainable Development Journal 10, no. 1 (2021): 1–19. http://dx.doi.org/10.51646/jsesd.v10i1.21.

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A good estimate of the cooling load is one vital aspect for achieving the optimal level of comfort and energy effiency in buildings. Due to its relative simplicity, the Cooling Load Temperature Diffrence (CLTD) method is still used both in education and industry for cooling load calculations. However, one downside of using this method is the limited number of walls and roofs which do not represent effctively all commonly used wall and roof constructions. In this research, a transient heat transfer model was developedto fid the (CLTD) values, for the most common external walls of buildings that

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Soomro, Abdul Rehman, Rizwan Ahmed Memon, and Muhammad Azam Soomro. "Forecasting Energy Consumption Using Calculation of CDDs in Pakistan Using Two Different Methods." Journal of Applied Engineering & Technology (JAET) 6, no. 2 (2022): 34–52. http://dx.doi.org/10.55447/jaet.06.02.68.

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Energy consumption has increased due to industrialization and other factors involved which gives the researchers to ponder upon the methods to set policy and forecast the need of energy in coming days. Pakistan with different cities comprising of various climatic zones, this study shown the highest CDDs in city of Hyderabad among large cities with high population flux and then followed by Karachi with 2nd highest CDDs among the mentioned cities with highest population and thus huge consumption of power, Quetta having lowest CDDs among the cities due to highland and cold climatic region. Pakist

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Arash Fattahi, Hussein Kadhim Sharaf, and Nor Mariah. "Thermal Comfort Assessment of UPM Engineering Library in Tropical Climate Conditions." Journal of Advanced Research in Applied Mechanics 117, no. 1 (2024): 179–89. http://dx.doi.org/10.37934/aram.117.1.179189.

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Thermal comfort is the study of indoor comfort level feel by the occupant in a room. This paper presents the study of thermal comfort that had been carried out in the library of engineering faculty at Universiti Putra Malayia in Serdang, Malaysia. The study was made in 4 days from 9 am to 11 am on October and November. This study was carried out to assess their thermal conditions during the occupants’ study hours. Thermal comfort variables were measured during study hours too. Qualitative and Quantitative data analysis showed that engineering library meet the requirement of comfort zone therma

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Pushkar, Svetlana, and Oleg Verbitsky. "LEED-NCV3 SILVER AND GOLD CERTIFIED PROJECTS IN THE US: AN OBSERVATIONAL STUDY." Journal of Green Building 13, no. 2 (2018): 67–83. http://dx.doi.org/10.3992/1943-4618.13.2.67.

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The Leadership in Energy and Environmental Design (LEED) rating system has been widely used in the US. However, until now, there has been no clear understanding of the strategies that should be used to make the transition from Silver to Gold certified projects. The aim of this study was to determine the trends in certified projects for both Silver and Gold LEED for New Construction and Major Renovations (LEED-NCv3) in 2016. Three performances, including (i) certification, (ii) category/subcategory/sub-subcategory certification, and (iii) cross-certification, were evaluated for both Silver and

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Saber, Hamed H., and Ali E. Hajiah. "Thermal Resistance of 30° Sloped, Enclosed Airspaces Subjected to Upward Heat Flow." Sustainability 14, no. 6 (2022): 3260. http://dx.doi.org/10.3390/su14063260.

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Heat transmission across an enclosed space is determined by the type of filling gas, the temperatures and long-wave emissivities of all surfaces that define the space, and the heat flow direction. The ASHRAE Handbook of Fundamentals provides the thermal resistances (R-values) of enclosed airspaces with only five effective emittance values (E) for vertical, horizontal, and 45° airspaces. ASHRAE R-values do not include the case of 30° sloped airspaces. In addition, ASHRAE R-values ignore the impact of the airspace aspect ratio (A) on R-values. However, many previous studies, as well as this stud

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Baharudin, Fauzi, Nur Fatt-Hiyyah Mohd Adlan, Jalina Kassim, Nurhidayah Hamzah, and Suriati Ghazali. "Effect of Heating, Ventilation, and Air Conditioning (HVAC) System on Indoor Air Quality in a Medical Facility." Journal of Sustainable Civil Engineering and Technology 2, no. 2 (2023): 80–90. http://dx.doi.org/10.24191/jscet.v2i2.80-90.

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Indoor Air Quality (IAQ) refers to the stationary air within an inhabited or occupied structure. Previously, there were fewer studies on indoor air quality in medical facilities in Malaysia especially in Terengganu. Most indoor air quality issues are caused by insufficient Heating, Ventilation, and Air Conditioning (HVAC) systems, which regulate three parameters. The purpose of this study is to assess the indoor air quality of a medical facility and determine if it complies with the Industry Code of Practice 2010 (ICOP 2010) and ASHRAE 170-2017. In this investigation, a total of 3 locations na

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Muhammad, Nadzir, and Wafirul Aqli. "Kajian Thermal Performance pada Gymnasium UI, Depok." Arsir 4, no. 2 (2020): 1. http://dx.doi.org/10.32502/arsir.v4i2.2924.

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Dewasa ini bangunan dengan bentang lebar seperti gedung pameran, bandara, convention center, bangunan olahraga, stasiun, semakin banyak dibangun di Indonesia, sebagian besar merupakan bangunan fasilitas publik yang sangat dibutuhkan dalam menunjang aktifitas masyarakat modern. Maka bangunan jenis ini perlu dirancang dengan sebaik mungkin, diantaranya ditandai dengan kenyamanan pengguna bangunan, serta kelayakan bangunan sebagai sarana umum. Thermal performance telah menarik perhatian bagi manusia dari semenjak manusia membuat tempat penampungan pertama yang dibangun untuk melindungi kita dari

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Su, Gelin, and Karen Kensek. "Detección de fallas en tiempo real por medio de la integración de sensores de información en BIM." Informes de la Construcción 73, no. 564 (2021): e416. http://dx.doi.org/10.3989/ic.85699.

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Una herramienta prototipo-de-visualización-BIM Adafruit-IO-Reader-(AIOR), fue desarrollada para intervenir al instante, transfiriendo información crítica al programa de Revit diseñado por Autodesk. Una vez transferida la información es retribuida por medio de la computadora de Adafruit-IO y traducida como base de datos o gráficas lineales. AIOR es de bajo costo y pertenece a los sensores de datos del Internet of Things-(IoT). Los usuarios son guiados visualmente a los sensores correspondientes en Revit. El algoritmo de detección de fallas se basa en los niveles de comodidad establecidos por el

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Najed, F., E. Djunaedy, A. R. I. Utami, I. P. Sari, F. Rithwan, and S. Sofyan. "The effect of baseline establishment on energy savings estimate in green building certification." Journal of Physics: Conference Series 2596, no. 1 (2023): 012051. http://dx.doi.org/10.1088/1742-6596/2596/1/012051.

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Abstract Recently, increasing energy consumption and CO2 emissions buildings and construction together are accounted globally for 36% and 37%, respectively. This situation implies that buildings consume over one-third of energy demand and emitter CO2 globally. Hence, energy-efficient practices were applied in green building certification to reduce energy consumption and CO2 emission. Each green building certification follows the energy baseline created to take a step further for better future equipped energy end-use. This research objective explains the comparison of different energy baselines

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Di, Yu Hui, Zi Long Xu, and Chun Yang Jiang. "Investigation on Thermal Environment in Railway Station Waiting Room." Advanced Materials Research 955-959 (June 2014): 4100–4103. http://dx.doi.org/10.4028/www.scientific.net/amr.955-959.4100.

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Takes a field measurement in traffic statistics, indoor and outdoor temperature and humidity, analyzes the thermal environment of the railway station waiting room of Xi’an. Investigates the thermal comfort status using ASHRAE seven sensation scales by questionnaires, survey the people’s satisfaction to the environment of waiting room.

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Komarudin, Komarudin, Alfian Nasution, Yohanes Baptista Indra Kurniadri, and Suharjito Suharjito. "Optimalisasi Ventilasi Ruang Kelas untuk Mencegah Penularan Covid-19 dengan Setting Experiment." Industrika : Jurnal Ilmiah Teknik Industri 7, no. 2 (2023): 143–52. http://dx.doi.org/10.37090/indstrk.v7i2.910.

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The spread of the SARS-CoV-2 virus has forced many schools to implement health protocols such as wearing masks, social distancing, and limiting the number of students in classrooms when face-to-face learning resumes as it did before the pandemic. This is due to the World Health Organization (WHO) and the Centers for Disease Control and Prevention (CDC) stating that Covid-19 can spread through the air (airborne). In addition to implementing health protocols, another important thing is to maintain classroom ventilation. By increasing the ventilation of outside air into the classroom, the risk of

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Morde, Abhijeet, Muralidhara Padigaru, Shalini Srivastava, and Asha More. "Capsimax Increases Resting Energy Expenditure in Males Under Fasting State: A Randomized, Double-Blind, Placebo Controlled, Cross-Over Study." Current Developments in Nutrition 5, Supplement_2 (2021): 514. http://dx.doi.org/10.1093/cdn/nzab041_029.

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Abstract Objectives Obesity is caused by an imbalance between energy intake and energy expenditure. Resting energy expenditure (REE) represents the calories burned at rest and accounts for &gt; 60% of total energy expenditure. Energy expenditure plays an important role in obesity development, hence an increase in REE could facilitate body weight reduction. Capsaicinoids, extracted from capsicum annuum have been known to increase metabolism, lipolysis & induce satiety. The study objective was to evaluate the effects of Capsimax™ on REE and thermal sensation. Methods This was a randomize

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Yolanda, Namira, Erlinda Ratnasari Putri, and Rahmawati Munir. "Analisis pertukaran udara per jam pada ventilasi laboratorium di kawasan hutan hujan tropis." Progressive Physics Journal 3, no. 2 (2022): 184. http://dx.doi.org/10.30872/ppj.v3i2.933.

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Kalimantan is an island surrounded by tropical rain forests and has hot and humid weather because it is crossed by the equator. The hot and humid weather affects the human working climate in the exchange of air in the room, for example in the laboratory. This study objective was to know the amount of air exchange per hour at the Samarinda Occupational Safety and Health Center. The tools used were the TESTO 425 anemometer, a digital meter, a lutron-abh 4225, and a laptop. The chambers where air changes per hour measured were the main laboratory, weighing chamber, UV-VIS spectrophotometer chambe

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Rupp, Ricardo Forgiarini, Renata De Vecchi, Bernardo Farias Asmus, Christhina Cândido, and Enedir Ghisi. "Conforto térmico humano em escritórios com sistema central de condicionamento artificial em clima subtropical úmido: estudos de campo vs. abordagem analítica." Ambiente Construído 17, no. 1 (2017): 111–23. http://dx.doi.org/10.1590/s1678-86212017000100127.

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Resumo Quando se trata de conforto térmico em edificações condicionadas artificialmente, o modelo predicted mean vote/predicted percentage of dissatisfied (PMV/PPD) de Fanger, publicado em 1970, é o mais utilizado para prever e avaliar as condições térmicas internas. Este artigo apresenta dados de conforto térmico levantados em uma edificação de escritórios com sistema central de condicionamento de ar, localizada em Florianópolis, uma cidade de clima subtropical úmido. O objetivo da pesquisa é analisar e comparar os resultados de sensação térmica obtidos em estudos de campo (284 participantes)

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Abdul Rashid, Fahanim, Norafida Ab Ghaffar, Asrul Mahjuddin Ressang Aminuddin, and Muhammad Azzam Ismail. "Review of Thermal Performance: A Terrace House in Melaka, Malaysia." Applied Mechanics and Materials 851 (August 2016): 791–97. http://dx.doi.org/10.4028/www.scientific.net/amm.851.791.

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A field study of residents’ thermal comfort in a naturally ventilated intermediate single storey terrace house was carried out at Merlimau, Melaka. An intermediate single storey terrace house was chosen as a case study and indoor thermal condition measurements were recorded for three days. The indoor ambient temperature, relative humidity and air speed were measured using on-site monitoring equipment to evaluate the thermal performance of this house. A questionnaire survey was also conducted involving all occupants to determine their thermal comfort perception of the same case study house. The

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Munonye, C. C., P. N. Ohaegbu, I. N. Chukwu, O. C. Ifebi, and C. N. Odimegwu. "Upper Limit of Acceptable Temperature for Children in Naturally Ventilated Classrooms in Warm Humid Climate in Imo State, Nigeria." IOP Conference Series: Earth and Environmental Science 1054, no. 1 (2022): 012055. http://dx.doi.org/10.1088/1755-1315/1054/1/012055.

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Abstract Fieldwork took place in naturally ventilated public primary schools in Imo State, Nigeria to find the upper limit of acceptable temperature. The period of the survey was from October 2017 to May 2018, where objective and subjective data were collected. Results of the fieldwork of the 330 surveyed children (aged 7-12 years) revealed that the upper limit temperature derived from their responses corresponding to mean thermal sensations of +0.85 is 31.6°C for the combined classrooms. This is about 4.9°C higher than the ASHRAE upper 80% acceptability limit. Furthermore, the maximum tempera

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Mareed, Wisam M., and Hasanen M. Hussen. "Numerical and Experimental Modeling of Indoor Air Quality Inside a Conditioned Space with Mechanical Ventilation and DX-Air Conditioner." Engineering and Technology Journal 38, no. 9A (2020): 1257–75. http://dx.doi.org/10.30684/etj.v38i9a.875.

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Elevated CO2 rates in a building affect the health of the occupant. This paper deals with an experimental and numerical analysis conducted in a full-scale test room located in the Department of Mechanical Engineering at the University of Technology. The experiments and CFD were conducted for analyzing ventilation performance. It is a study on the effect of the discharge airflow rate of the ceiling type air-conditioner on ventilation performance in the lecture room with the mixing ventilation. Most obtained findings show that database and questionnaires analyzed prefer heights between 0.2 m to

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Alrebei, Odi Fawwaz, Bushra Obeidat, Tamer Al-Radaideh, et al. "Quantifying CO2 Emissions and Energy Production from Power Plants to Run HVAC Systems in ASHRAE-Based Buildings." Energies 15, no. 23 (2022): 8813. http://dx.doi.org/10.3390/en15238813.

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Recent evidence available in the literature has highlighted that the high-energy consumption rate associated with air conditioning leads to the undesired “overcooling” condition in arid-climate regions. To this end, this study quantified the effects of increasing the cooling setpoint temperature on reducing energy consumption and CO2 emissions to mitigate overcooling. DesignBuilder software was used to simulate the performance of a generic building operating under the currently adopted ASHRAE HVAC criteria. It was found that increasing the cooling setpoint temperature by 1 °C will increase the

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Mithun Mondal, Kamarul-Azhar Kamarudin, Azian Hariri, Muhammad Ridhuan Hassan, and Muhd Hafeez Zainulabidin. "Prototype Development of Modified Roof Turbine Ventilator for Thermal Comfort Enhancement." Journal of Advanced Research in Applied Mechanics 115, no. 1 (2024): 152–65. http://dx.doi.org/10.37934/aram.115.1.152165.

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A mechanical ventilator known as a turbine ventilator harnesses the wind to supply natural ventilation. Due to their high performance and cheap running costs, these devices are increasingly being used to ventilate areas. This study evaluated the impact of a modified turbine ventilator system on thermal comfort and airflow inside a room. The results showed that the natural ventilation system failed to meet the ASHRAE Standard 55-2020 for thermal comfort. The installation of a turbine ventilator decreases the temperature by 1.3°C but still did not meet the standards. The modified turbine ventila

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Stecky, Nick. "Introduction to the ASHRAE GreenGuide for LEED." Strategic Planning for Energy and the Environment 25, no. 1 (2005): 63–80. http://dx.doi.org/10.1080/10485230509509680.

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Cooper, T. J. R. "1986 ASHRAE handbook: Refrigeration systems and applications." International Journal of Refrigeration 10, no. 4 (1987): 243. http://dx.doi.org/10.1016/0140-7007(87)90060-0.

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Cetin, Kristen, and Brian M. Fronk. "Broadening participation in ASHRAE conferences: Innovative research in the built environment presented at the 2022 ASHRAE Annual Conference." Science and Technology for the Built Environment 29, no. 9 (2023): 843–44. http://dx.doi.org/10.1080/23744731.2023.2273660.

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Danila, Richard N., Nadia Koranteng, Kathy J. Como-Sabetti, Trisha J. Robinson, and Ellen S. Laine. "Hospital Water Management Programs for Legionella Prevention, Minnesota, 2017." Infection Control & Hospital Epidemiology 39, no. 3 (2018): 336–38. http://dx.doi.org/10.1017/ice.2017.310.

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AbstractInfection preventionists at Minnesota hospitals were surveyed to determine whether they had Legionella water management plans. Of 137 hospitals, 84 (61%) responded. Among them, 27% hospitals had a water management plan, 21% regularly sampled for Legionella, and 51% had knowledge of ASHRAE Legionella prevention standards. Significant changes are needed to protect patients from nosocomial infection.Infect Control Hosp Epidemiol 2018;39:336–338

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Miller-Klein, Erik, and Viken Koukounian. "International green construction code (IgCC)/ASHRAE 189.1: History and use of acoustical control section." Journal of the Acoustical Society of America 153, no. 3_supplement (2023): A182. http://dx.doi.org/10.1121/10.0018591.

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This seminar will provide historical context on the current Acoustical Control section 801.3.3 in the International Code Council's International Green Construction Code (IgCC) is based on the ASHRAE Standard 189.1 Standard for the Design of High-Performance Green Buildings. This includes a detailed review of the current language and application, and guidance on the best way to design and commission to this standard.

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d’Ambrosio Alfano, Francesca, Bjarne Olesen, Boris Palella, Daniela Pepe, and Giuseppe Riccio. "Fifty Years of PMV Model: Reliability, Implementation and Design of Software for Its Calculation." Atmosphere 11, no. 1 (2019): 49. http://dx.doi.org/10.3390/atmos11010049.

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In most countries, PMV is the reference index for the assessment of thermal comfort conditions in mechanically conditioned environments. It is also the basis to settle input values of the operative temperature for heating and cooling load calculations, sizing of equipment, and energy calculations according to EN 16798-1 and 16798-2 Standards. Over the years, great effort has been spent to study the reliability of PMV, whereas few investigations were addressed to its calculation. To study this issue, the most significant apps devoted to its calculation have been compared with a reference softwa

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Charles Munonye and Anthony Maduabum. "Classrooms and comfort temperature in South East Nigeria." World Journal of Advanced Research and Reviews 24, no. 2 (2024): 1564–73. http://dx.doi.org/10.30574/wjarr.2024.24.2.3509.

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A field study was conducted in naturally ventilated public-school buildings located in the warm and humid climate of Imo State in Nigeria, to determine the comfort temperature of the schoolchildren. The survey took place from October 2017 to May 2018, covering rainy season and dry season, where objective and subjective approaches to data collection were employed. Results of the fieldwork of the 330 surveyed children (aged 7-12 years) revealed that the maximum comfort temperature derived from their responses corresponding to mean thermal sensations of +0.85, is 31.6oC for the combined classroom

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Husaini, Hardiansyah. "PERBANDINGAN KENYAMANAN TERMAL RUMAH DINDING KAYU DAN TEMBOK BATA DI DATARAN TINGGI BENER MERIAH." Journal of Computer Science and Information Technology 1, no. 4 (2024): 213–24. http://dx.doi.org/10.70248/jcsit.v1i4.1207.

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Bener Meriah merupakan sebuah daerah dataran tinggi di provinsi Aceh yang dikenal dengan suhu udara yang dingin. Karena kondisi ini, banyak bangunan di Bener Meriah menggunakan bahan dinding kayu dan tembok batu bata. Namun perbedaan dalam penggunaan material ini dapat menghasilkan tingkat kenyamanan termal yang berbeda di setiap bangunan. Penelitian ini difokuskan pada perbandingan antara bangunan rumah dinding kayu dan tembok bata pada dataran tinggi yang memiliki suhu udara dingin. Standar kenyamanan termal yang digunakan dalam penelitian mengacu pada standar ASHRAE-55 tahun 2023. Penelitia

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