Field investigation on unacceptable sensation of thermal environment in Taiwanoffice

Yuta Fukawa*, Masayuki Ichinose, Eriko Tokuda

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution


The average thermal sensation of occupants in the hot and humid region of Asia is different from that of Europeans and Americans. Office occupants in buildings equipped with air conditioners tend to find the thermal environment uncomfortable due to individual differences of thermal sensation. In this research, the thermal environment was measured in two office buildings in Taipei during summer. The Occupants' sensation of the thermal environment was recorded using a voting machine developed by team researchers. Thirty-six occupants were requested to report the feeling of an unacceptable thermal environment by pressing a red or blue button on the voting machine when feeling hot or cold, respectively. The results show that operative temperature and absolute humidity varied at the times an individual was out of the comfort zone based on ASHRAE Standard 55(2013). Although all individuals were in the same environment, some occupants reported feeling unacceptably, even though they were at a temperature and humidity level considered to be within the comfort zone. About 60% of unacceptable votes reported feeling cold while within the comfort zone. This research suggests that it is possible to revise existing comfort criteria in offices in Taiwan or other hot or humid regions in Asia.

Original languageEnglish
Title of host publicationProceedings of 33rd PLEA International Conference
Subtitle of host publicationDesign to Thrive, PLEA 2017
EditorsLuisa Brotas, Sue Roaf, Fergus Nicol
PublisherNCEUB 2017 - Network for Comfort and Energy Use in Buildings
Number of pages8
ISBN (Electronic)9780992895754
Publication statusPublished - 2017
Externally publishedYes
Event33rd International on Passive and Low Energy Architecture Conference: Design to Thrive, PLEA 2017 - Edinburgh, United Kingdom
Duration: 2017 Jul 22017 Jul 5

Publication series

NameProceedings of 33rd PLEA International Conference: Design to Thrive, PLEA 2017


Conference33rd International on Passive and Low Energy Architecture Conference: Design to Thrive, PLEA 2017
Country/TerritoryUnited Kingdom


  • Air conditioned office space
  • Occupant sensation
  • Thermal comfort
  • Tropical Region
  • Unacceptable sensation

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment


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