Determination of thermal sensation on transient conditions
The objective of this study is to investigate the difference in thermal environment and human response between air-conditioned closed space and a semi-open space. The thermal response of the subjects in transitional space as they experienced step changes in temperature when moving from outdoor envir...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Faculty of Design & Architecture, Universiti Putra Malaysia
2015
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| Online Access: | http://psasir.upm.edu.my/id/eprint/42306/ http://psasir.upm.edu.my/id/eprint/42306/1/FKRSE1_3-9.pdf |
| _version_ | 1848849927701004288 |
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| author | Dahlan, Nur Dalilah Gital, Yakubu Y. Hussein, Mohd Kher |
| author_facet | Dahlan, Nur Dalilah Gital, Yakubu Y. Hussein, Mohd Kher |
| author_sort | Dahlan, Nur Dalilah |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The objective of this study is to investigate the difference in thermal environment and human response between air-conditioned closed space and a semi-open space. The thermal response of the subjects in transitional space as they experienced step changes in temperature when moving from outdoor environment to indoor air-conditioned and back to outdoor was examined. The thermal sensation was investigated using a questionnaire and a comprehensive package of micro-metrological instruments. Experiment was conducted to examine the immediate thermal sensation of the subjects when walking from one set of thermal condition to another. Subjects were exposed to three different environmental conditions for 5 to 20 minutes (semi-outdoor, indoor and semi-outdoor). Skin temperature, subjective thermal sensation and comfort were recorded throughout the experiment. Results showed that there is variation in skin temperature as observed in sensation scores between the sequences. The predicted mean vote overshoot all through the sequence as the subjects move from one location to another. Since PMV is widely used as a tool to predict thermal comfort in steady-state environment, it may not be applied to predict thermal sensation in a transient environment. The result of this study can help to improve the PMV model to be applied in a transient environment. This outcome would be suitable in circumstances such as movement in a lobby which is semi-outdoor to predict thermal sensation. |
| first_indexed | 2025-11-15T09:58:10Z |
| format | Article |
| id | upm-42306 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T09:58:10Z |
| publishDate | 2015 |
| publisher | Faculty of Design & Architecture, Universiti Putra Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-423062016-04-12T09:35:08Z http://psasir.upm.edu.my/id/eprint/42306/ Determination of thermal sensation on transient conditions Dahlan, Nur Dalilah Gital, Yakubu Y. Hussein, Mohd Kher The objective of this study is to investigate the difference in thermal environment and human response between air-conditioned closed space and a semi-open space. The thermal response of the subjects in transitional space as they experienced step changes in temperature when moving from outdoor environment to indoor air-conditioned and back to outdoor was examined. The thermal sensation was investigated using a questionnaire and a comprehensive package of micro-metrological instruments. Experiment was conducted to examine the immediate thermal sensation of the subjects when walking from one set of thermal condition to another. Subjects were exposed to three different environmental conditions for 5 to 20 minutes (semi-outdoor, indoor and semi-outdoor). Skin temperature, subjective thermal sensation and comfort were recorded throughout the experiment. Results showed that there is variation in skin temperature as observed in sensation scores between the sequences. The predicted mean vote overshoot all through the sequence as the subjects move from one location to another. Since PMV is widely used as a tool to predict thermal comfort in steady-state environment, it may not be applied to predict thermal sensation in a transient environment. The result of this study can help to improve the PMV model to be applied in a transient environment. This outcome would be suitable in circumstances such as movement in a lobby which is semi-outdoor to predict thermal sensation. Faculty of Design & Architecture, Universiti Putra Malaysia 2015-12 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/42306/1/FKRSE1_3-9.pdf Dahlan, Nur Dalilah and Gital, Yakubu Y. and Hussein, Mohd Kher (2015) Determination of thermal sensation on transient conditions. ALAM CIPTA, International Journal on Sustainable Tropical Design Research & Practice, 8 (spec.3). pp. 3-9. ISSN 1823-7231; ESSN: 2289-3687 http://www.frsb.upm.edu.my/dokumen/FKRSE1_3-9.pdf |
| spellingShingle | Dahlan, Nur Dalilah Gital, Yakubu Y. Hussein, Mohd Kher Determination of thermal sensation on transient conditions |
| title | Determination of thermal sensation on transient conditions |
| title_full | Determination of thermal sensation on transient conditions |
| title_fullStr | Determination of thermal sensation on transient conditions |
| title_full_unstemmed | Determination of thermal sensation on transient conditions |
| title_short | Determination of thermal sensation on transient conditions |
| title_sort | determination of thermal sensation on transient conditions |
| url | http://psasir.upm.edu.my/id/eprint/42306/ http://psasir.upm.edu.my/id/eprint/42306/ http://psasir.upm.edu.my/id/eprint/42306/1/FKRSE1_3-9.pdf |