TY - JOUR
T1 - An integrated outdoor spaces design procedure to relieve heat stress in hot and humid regions
AU - Yang, Shing Ru
AU - Lin, Tzu Ping
N1 - Funding Information:
The authors would like to thank the Ministry of Science and Technology of Taiwan, for financially supporting this research under Contract No. NSC 102-2221-E-006-992-MY2 . We appreciate Dr. Christine Ketterer and Mr. Dominik Froehlich help on the model setting and PET calculation.
Publisher Copyright:
© 2016 Elsevier Ltd.
PY - 2016/4/1
Y1 - 2016/4/1
N2 - Traditional settlements may suffer from extreme thermal stress owing to the types of buildings and the activities of local people. In this study, thermal environmental measurements were made 12 times in one year, and an ENVI-met model was used to simulate and examine the outdoor thermal environment in Tainan, Taiwan. The results reveal that when the model is applied to hot and humid regions, the shortwave reduction method can be utilized to estimate mean radiant temperatures values more accurately. Various simulated scenarios indicated that planting trees is the most effective means of reducing the physiologically equivalent temperature (PET) - by up to 15.2 °C. Integrated scenarios for outdoor spaces design are proposed and can reduce the frequency of heat stress from 79.7% to 40.5% compared with the original condition. Based on the measurements, model verification, and analysis of adjustment strategies, an integrated outdoor spaces design approach for relieving heat stress is proposed to promote thermal comfort, the practicability of the design procedure, and the aesthetics of the environment. The proposed integrated procedure can help planners and architects to selecting strategies for designing outdoor spaces to relieve heat stress with the ultimate goal of improving outdoor living environments.
AB - Traditional settlements may suffer from extreme thermal stress owing to the types of buildings and the activities of local people. In this study, thermal environmental measurements were made 12 times in one year, and an ENVI-met model was used to simulate and examine the outdoor thermal environment in Tainan, Taiwan. The results reveal that when the model is applied to hot and humid regions, the shortwave reduction method can be utilized to estimate mean radiant temperatures values more accurately. Various simulated scenarios indicated that planting trees is the most effective means of reducing the physiologically equivalent temperature (PET) - by up to 15.2 °C. Integrated scenarios for outdoor spaces design are proposed and can reduce the frequency of heat stress from 79.7% to 40.5% compared with the original condition. Based on the measurements, model verification, and analysis of adjustment strategies, an integrated outdoor spaces design approach for relieving heat stress is proposed to promote thermal comfort, the practicability of the design procedure, and the aesthetics of the environment. The proposed integrated procedure can help planners and architects to selecting strategies for designing outdoor spaces to relieve heat stress with the ultimate goal of improving outdoor living environments.
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U2 - 10.1016/j.buildenv.2016.01.001
DO - 10.1016/j.buildenv.2016.01.001
M3 - Article
AN - SCOPUS:84957073738
SN - 0360-1323
VL - 99
SP - 149
EP - 160
JO - Building and Environment
JF - Building and Environment
ER -