Field studies on thermal comfort of air-conditioned and non air-conditioned buildings in Malaysia

Field studies on the environmental conditions and occupant comfort were carried out in air-conditioned buildings and non air-conditioned buildings in Malaysia. The study on the air-conditioned buildings was carried out in UNITEN and for the non air-conditioned buildings in two schools, which is a pr...

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Main Authors: Hussein I., Rahman M.H.A., Maria T.
Other Authors: 7006902818
Format: Conference paper
Published: 2023
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spelling my.uniten.dspace-296902023-12-28T15:30:47Z Field studies on thermal comfort of air-conditioned and non air-conditioned buildings in Malaysia Hussein I. Rahman M.H.A. Maria T. 7006902818 15047138000 35778598800 Air conditioning Energy Thermal comfort Thermal environment Thermal sensation votes Atmospheric humidity Buildings Metal analysis Regression analysis Statistics Sustainable development Thermal comfort Air temperature Air velocities Air-conditioned buildings Comfort zone Environmental assessment Environmental conditions Environmental parameter Field studies Health clinics Malaysia Neutral temperature Non air conditioned building Operative temperature Physical measurement Relative humidities Secondary schools Subjective assessments Thermal condition Thermal environment Thermal sensation votes Waiting areas Air conditioning Field studies on the environmental conditions and occupant comfort were carried out in air-conditioned buildings and non air-conditioned buildings in Malaysia. The study on the air-conditioned buildings was carried out in UNITEN and for the non air-conditioned buildings in two schools, which is a primary and secondary school, and in a public waiting area in a health clinic in Johor Bahru, located in the southern region of Malaysia. The non air-conditioned buildings were mechanically ventilated by fans. The studies were made in different days from morning until noon as to get variation of temperatures, collecting a full set of objective physical measurements and subjective assessments through questionnaires. The measured environmental parameters were air temperature, relative humidity and air velocity. The subjective responses concern the judgment of the respondents about the thermal environment at the moment of measurements. The results obtained showed that majority of the respondents found that their indoor thermal conditions acceptable even though most of the thermal sensation votes (TSV) exceeded those specified by ASHRAE Standard 55 and the environmental assessments exceeded the standard. The neutral temperature and comfort range were obtained through linear regression analysis of TSV and in the Fanger's PMV model. From the subjective assessment, it was found that the occupants can accept the thermal range beyond the ASHRAE comfort zone. The neutral temperature of 24.4�C and 28.4�C for air-conditioned and non air-conditioned buildings respectively, were obtained by regression analysis of TSV on operative temperature. The acceptable range of temperature obtained by regression analysis of TSV were 23.1�C to 25.6�C for air-conditioned buildings and 26.0oC to 30.7�C for non air-conditioned buildings. �2009 IEEE. Final 2023-12-28T07:30:47Z 2023-12-28T07:30:47Z 2009 Conference paper 10.1109/ICEENVIRON.2009.5398622 2-s2.0-77949602772 https://www.scopus.com/inward/record.uri?eid=2-s2.0-77949602772&doi=10.1109%2fICEENVIRON.2009.5398622&partnerID=40&md5=9ea4a6afc5a1b6cbe7a29a4ce0a5659f https://irepository.uniten.edu.my/handle/123456789/29690 5398622 360 368 Scopus
institution Universiti Tenaga Nasional
building UNITEN Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tenaga Nasional
content_source UNITEN Institutional Repository
url_provider http://dspace.uniten.edu.my/
topic Air conditioning
Energy
Thermal comfort
Thermal environment
Thermal sensation votes
Atmospheric humidity
Buildings
Metal analysis
Regression analysis
Statistics
Sustainable development
Thermal comfort
Air temperature
Air velocities
Air-conditioned buildings
Comfort zone
Environmental assessment
Environmental conditions
Environmental parameter
Field studies
Health clinics
Malaysia
Neutral temperature
Non air conditioned building
Operative temperature
Physical measurement
Relative humidities
Secondary schools
Subjective assessments
Thermal condition
Thermal environment
Thermal sensation votes
Waiting areas
Air conditioning
spellingShingle Air conditioning
Energy
Thermal comfort
Thermal environment
Thermal sensation votes
Atmospheric humidity
Buildings
Metal analysis
Regression analysis
Statistics
Sustainable development
Thermal comfort
Air temperature
Air velocities
Air-conditioned buildings
Comfort zone
Environmental assessment
Environmental conditions
Environmental parameter
Field studies
Health clinics
Malaysia
Neutral temperature
Non air conditioned building
Operative temperature
Physical measurement
Relative humidities
Secondary schools
Subjective assessments
Thermal condition
Thermal environment
Thermal sensation votes
Waiting areas
Air conditioning
Hussein I.
Rahman M.H.A.
Maria T.
Field studies on thermal comfort of air-conditioned and non air-conditioned buildings in Malaysia
description Field studies on the environmental conditions and occupant comfort were carried out in air-conditioned buildings and non air-conditioned buildings in Malaysia. The study on the air-conditioned buildings was carried out in UNITEN and for the non air-conditioned buildings in two schools, which is a primary and secondary school, and in a public waiting area in a health clinic in Johor Bahru, located in the southern region of Malaysia. The non air-conditioned buildings were mechanically ventilated by fans. The studies were made in different days from morning until noon as to get variation of temperatures, collecting a full set of objective physical measurements and subjective assessments through questionnaires. The measured environmental parameters were air temperature, relative humidity and air velocity. The subjective responses concern the judgment of the respondents about the thermal environment at the moment of measurements. The results obtained showed that majority of the respondents found that their indoor thermal conditions acceptable even though most of the thermal sensation votes (TSV) exceeded those specified by ASHRAE Standard 55 and the environmental assessments exceeded the standard. The neutral temperature and comfort range were obtained through linear regression analysis of TSV and in the Fanger's PMV model. From the subjective assessment, it was found that the occupants can accept the thermal range beyond the ASHRAE comfort zone. The neutral temperature of 24.4�C and 28.4�C for air-conditioned and non air-conditioned buildings respectively, were obtained by regression analysis of TSV on operative temperature. The acceptable range of temperature obtained by regression analysis of TSV were 23.1�C to 25.6�C for air-conditioned buildings and 26.0oC to 30.7�C for non air-conditioned buildings. �2009 IEEE.
author2 7006902818
author_facet 7006902818
Hussein I.
Rahman M.H.A.
Maria T.
format Conference paper
author Hussein I.
Rahman M.H.A.
Maria T.
author_sort Hussein I.
title Field studies on thermal comfort of air-conditioned and non air-conditioned buildings in Malaysia
title_short Field studies on thermal comfort of air-conditioned and non air-conditioned buildings in Malaysia
title_full Field studies on thermal comfort of air-conditioned and non air-conditioned buildings in Malaysia
title_fullStr Field studies on thermal comfort of air-conditioned and non air-conditioned buildings in Malaysia
title_full_unstemmed Field studies on thermal comfort of air-conditioned and non air-conditioned buildings in Malaysia
title_sort field studies on thermal comfort of air-conditioned and non air-conditioned buildings in malaysia
publishDate 2023
_version_ 1806427732115980288
score 13.222552