Office occupant productivity under variable HVAC control based on thermal satisfaction

Takashi Shinozuka, Toshiharu Ikaga, Chosei Kaseda, Mayumi Miura, Kana Mizutani

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

3 Citations (Scopus)

Abstract

Air-conditioning systems in Japanese office buildings are required to consume less energy while providing sufficient comfort to maintain occupant productivity. We examined the relationship between changes in the indoor environment and occupant productivity through an analysis of psychological parameters. Experiments were conducted in a climate-controlled chamber, and participants were exposed to various changes in thermal conditions, in particular, changes in wind velocity based on thermal demand submitted via a Web application. In one scenario, the participants were shown the predicted percentage of dissatisfied (PPD) on their PC displays. From the relationship between standard new effective temperature (SET*) and thermal satisfaction, we found that the wind velocity change based on thermal demand may improve thermal satisfaction. When PPD was shown, the thermal satisfaction was improved to the greatest extent. The correlation between thermal satisfaction and human performance indicates that wind velocity variation in response to thermal demand and providing feedback information about the thermal environment will improve the productivity of office occupants.

Original languageEnglish
Title of host publication10th International Conference on Healthy Buildings 2012
Pages1611-1616
Number of pages6
Publication statusPublished - 2012 Dec 1
Event10th International Conference on Healthy Buildings 2012 - Brisbane, QLD, Australia
Duration: 2012 Jul 82012 Jul 12

Publication series

Name10th International Conference on Healthy Buildings 2012
Volume2

Other

Other10th International Conference on Healthy Buildings 2012
CountryAustralia
CityBrisbane, QLD
Period12/7/812/7/12

Keywords

  • Human performance
  • Occupant control
  • Thermal satisfaction
  • Variable HVAC control

ASJC Scopus subject areas

  • Civil and Structural Engineering

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