TY - JOUR
T1 - Field study on indoor thermal environment in an atrium in tropical climates
AU - Abdullah, Abd Halid
AU - Meng, Qinglin
AU - Zhao, Lihua
AU - Wang, Fan
PY - 2009/2
Y1 - 2009/2
N2 - Solar penetration through the transparent envelope can severely deteriorate indoor thermal environment inside an atrium building particularly in tropical climates. This paper reports the application of two low-cost measures, namely high level internal solar blinds and water spray, to minimise overheating problems on the three levels inside the atrium of a guesthouse in Southern China, where summer is hot and humid. The blinds reduce direct solar penetration at the top of the atrium whilst the evaporative spray system cools down the glazed surfaces of the atrium envelope. A site test was undertaken over 10 consecutive days covering both overcast days and clear days in July 2004. Measurement of indoor thermal environmental parameters was conducted on three levels in the atrium and the recorded data represent the internal conditions: with and without internal blinds protection from solar, and with and without water spray. This study has shown that on hot and clear summer days, with water spray and without blinds the average air temperature difference from 1200 to 1800 h between both first floor and second floor, and second floor and external were 5.7 and 1.7 K, respectively; whilst with blinds and without water spray the average air temperature differences were 8.7 and 4.8 K, respectively. © 2008 Elsevier Ltd. All rights reserved.
AB - Solar penetration through the transparent envelope can severely deteriorate indoor thermal environment inside an atrium building particularly in tropical climates. This paper reports the application of two low-cost measures, namely high level internal solar blinds and water spray, to minimise overheating problems on the three levels inside the atrium of a guesthouse in Southern China, where summer is hot and humid. The blinds reduce direct solar penetration at the top of the atrium whilst the evaporative spray system cools down the glazed surfaces of the atrium envelope. A site test was undertaken over 10 consecutive days covering both overcast days and clear days in July 2004. Measurement of indoor thermal environmental parameters was conducted on three levels in the atrium and the recorded data represent the internal conditions: with and without internal blinds protection from solar, and with and without water spray. This study has shown that on hot and clear summer days, with water spray and without blinds the average air temperature difference from 1200 to 1800 h between both first floor and second floor, and second floor and external were 5.7 and 1.7 K, respectively; whilst with blinds and without water spray the average air temperature differences were 8.7 and 4.8 K, respectively. © 2008 Elsevier Ltd. All rights reserved.
KW - Atrium
KW - Evaporative cooling
KW - Solar blinds
KW - Solar radiations
KW - Thermal stratification
UR - http://www.scopus.com/inward/record.url?scp=55749092102&partnerID=8YFLogxK
U2 - 10.1016/j.buildenv.2008.02.011
DO - 10.1016/j.buildenv.2008.02.011
M3 - Article
SN - 0360-1323
VL - 44
SP - 431
EP - 436
JO - Building and Environment
JF - Building and Environment
IS - 2
ER -