Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.buildenv.2005.09.008
Title: Local thermal sensation and comfort study in a field environment chamber served by displacement ventilation system in the tropics
Authors: Cheong, K.W.D. 
Yu, W.J.
Sekhar, S.C. 
Tham, K.W. 
Kosonen, R.
Keywords: Displacement ventilation
Local thermal comfort
Local thermal sensation
Thermal gradient
Tropics
Issue Date: 2007
Source: Cheong, K.W.D., Yu, W.J., Sekhar, S.C., Tham, K.W., Kosonen, R. (2007). Local thermal sensation and comfort study in a field environment chamber served by displacement ventilation system in the tropics. Building and Environment 42 (2) : 525-533. ScholarBank@NUS Repository. https://doi.org/10.1016/j.buildenv.2005.09.008
Abstract: This paper presents a study of local thermal sensation (LTS) and comfort in a field environmental chamber (FEC) served by displacement ventilation (DV) system. The FEC, 11.12 m (L)×7.53 m (W)×2.60 m (H), simulates a typical office layout. A total of 60 tropically acclimatized subjects, 30 male and 30 female, were engaged in sedentary office work for 3 h. Subjects were exposed to three vertical air temperature gradients, nominally 1, 3 and 5 K/m, between 0.1 and 1.1 m heights and three room air temperatures of 20, 23 and 26 °C at 0.6 m height. The objective of this study is to investigate the mutual effect of local and overall thermal sensation (OTS) and comfort in DV environment. The results show that in a space served by DV system, at OTS close to neutral, local thermal discomfort decreased with the increase of room air temperature. The OTS of occupants was mainly affected by LTS at the arm, calf, foot, back and hand. Local thermal discomfort was affected by both LTS and OTS. At overall cold thermal sensation, all body segments prefer slightly warm sensation. At overall slightly warm thermal sensation, all body segments prefer slightly cool sensation. © 2005 Elsevier Ltd. All rights reserved.
Source Title: Building and Environment
URI: http://scholarbank.nus.edu.sg/handle/10635/45765
ISSN: 03601323
DOI: 10.1016/j.buildenv.2005.09.008
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