Outdoor thermal comfort study in a sub-tropical climate: a longitudinal study based in Hong Kong
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AbstractThis paper presents the findings of an outdoor thermal comfort study conducted in Hong Kong using longitudinal experiments-an alternative approach to conventional transverse surveys. In a longitudinal experiment, the thermal sensations of a relatively small number of subjects over different environmental conditions are followed and evaluated. This allows an exploration of the effects of changing climatic conditions on thermal sensation, and thus can provide information that is not possible to acquire through the conventional transverse survey. The paper addresses the effects of changing wind and solar radiation conditions on thermal sensation. It examines the use of predicted mean vote (PMV) in the outdoor context and illustrates the use of an alternative thermal index-physiological equivalent temperature (PET). The paper supports the conventional assumption that thermal neutrality corresponds to thermal comfort. Finally, predictive formulas for estimating outdoor thermal sensation are presented as functions of air temperature, wind speed, solar radiation intensity and absolute humidity. According to the formulas, for a person in light clothing sitting under shade on a typical summer day in Hong Kong where the air temperature is about 28A degrees C and relative humidity about 80%, a wind speed of about 1.6 m/s is needed to achieve neutral thermal sensation.
All Author(s) ListCheng V, Ng E, Chan C, Givoni B
Journal nameInternational Journal of Biometeorology
Detailed descriptionDOI 10.1007/s00484-010-0396-z .
Year2012
Month1
Day1
Volume Number56
Issue Number1
PublisherSPRINGER
Pages43 - 56
ISSN0020-7128
eISSN1432-1254
LanguagesEnglish-United Kingdom
KeywordsHong Kong; Longitudinal; Outdoor comfort; Thermal comfort; Wind
Web of Science Subject CategoriesBiophysics; BIOPHYSICS; Environmental Sciences; ENVIRONMENTAL SCIENCES; Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences; METEOROLOGY & ATMOSPHERIC SCIENCES; Physiology; PHYSIOLOGY

Last updated on 2021-14-09 at 00:12