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|Title:||Assessment of thermal environment using a thermal manikin in a field environment chamber served by displacement ventilation system|
|Authors:||Cheong, K.W.D. |
|Source:||Cheong, K.W.D., Yu, W.J., Kosonen, R., Tham, K.W., Sekhar, S.C. (2006). Assessment of thermal environment using a thermal manikin in a field environment chamber served by displacement ventilation system. Building and Environment 41 (12) : 1661-1670. ScholarBank@NUS Repository. https://doi.org/10.1016/j.buildenv.2005.06.018|
|Abstract:||This paper presents a thermal comfort study using a thermal manikin in a field environment chamber served by the Displacement Ventilation (DV) system. The manikin has a female body with 26 individually heated and controlled body segments. The manikin together with subjects was exposed to 3 levels of vertical air temperature gradients, nominally 1, 3 & 5 K/m, between 0.1 and 1.1 m heights at 3 room air temperatures of 20, 23 and 26 °C at 0.6 m height. Relative humidity at 0.6 m height and air velocity near the manikin and the subjects were maintained at 50% and less than 0.2 m/s, respectively. The aims of this study are to assess thermally non-uniform environment served by DV system using the manikin and correlate the subjective responses with measurements from the manikin. The main findings indicate that room air temperature had greater influence on overall and local thermal sensations and comfort than temperature gradient. Local thermal discomfort decreased with increase of room air temperature at overall thermally neutral state. The local discomfort was affected by overall thermal sensation and was lower at overall thermally neutral state than at overall cold and cool sensations. © 2005 Elsevier Ltd. All rights reserved.|
|Source Title:||Building and Environment|
|Appears in Collections:||Staff Publications|
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