A field study of thermal comfort in outdoor and semi-outdoor environments in a humid subtropical climate city

Zeng Zhou, Hong Chen, Qinli Deng, Akashi Mochida

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Very few studies exist on the outdoor thermal environment and thermal comfort impact of a semi-outdoor environment-under a piloti-in a humid subtropical climate city. Subjective data was collected using questionnaires both in a square and under a piloti during June and July 2011 in Wuhan. The aims were to obtain a better understanding of human thermal comfort response while outdoors and to clarify the effect of piloti on thermal comfort in a humid subtropical climate city. It was found that mean radiant temperature (MRT) plays a more important role than air temperature in the subjective response of people to the outdoor thermal environment. The relationship between the standard effective temperature (SET*) and thermal sensation vote (TSV) was clarified, and the neutral SET* was calculated as being about 24. 8°C. Being under a piloti has a notable impact, reducing the heat effect by ameliorating the microclimate and enhancing human thermal comfort outdoors. When the maximum air temperature exceeded 35°C during daytime, the SET* decreased by 9°C under the piloti in a humid subtropical climate city relative to that in a nearby square, and the acceptance rate of the outdoor thermal environment under the piloti was more than twice that in the square.

Original languageEnglish
Pages (from-to)73-79
Number of pages7
JournalJournal of Asian Architecture and Building Engineering
Volume12
Issue number1
DOIs
Publication statusPublished - 2013 May 15

Keywords

  • Humid subtropical climate
  • Outdoor thermal comfort
  • Piloti
  • Standard effective temperature

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Architecture
  • Cultural Studies
  • Building and Construction
  • Arts and Humanities (miscellaneous)

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