A Field Survey of Thermal Comfort in Air-conditioned Space in Songkhla’s Hot Humid Climate

Authors

  • Ashmin Aryal King Mongkut’s University of Technology Thonburi
  • Pipat Chaiwiwatworakul King Mongkut’s University of Technology Thonburi
  • Surapong Chirarattananon King Mongkut’s University of Technology Thonburi
  • Satinee Wattanakit Rajamangala University of Technology Srivijaya

DOI:

https://doi.org/10.4186/ej.2021.25.2.235

Keywords:

thermal comfort, predictive mean vote, thermal sensation vote, thermal acceptability, thermal preference, hot and humid climate

Abstract

This paper reports the study results from a field comfort survey of people in hot humid climate of Songkhla, a province in southern Thailand (latitude 7.20°N and longitude 100.59°E). Thermal sensation, thermal acceptability, and thermal preference were assessed from the observations of three hundred subjects in air-conditioned spaces in buildings. The analysis showed that the operative temperature for the thermal neutrality (TVS=0) was 26.3°C, and the acceptable temperature range (TVS=±0.5) was 25.6-27.1°C. The air movement played a key role to improve the people thermal sensation and preference, but the relative humidity performed less impact. In our study case, the PMV model could not well applied to Songkhla’s people as it predicted the neutral temperature one and a half degree colder than the actual, and underestimated the hyper-sensitivity of the thermal sensation to the temperature.

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Author Biographies

Ashmin Aryal
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The Joint Graduate School of Energy and Environment, CHE Center for Energy Technology and Environment, King Mongkut’s University of Technology Thonburi, 126 Pracha-Uthit Road, Bangmod, Tungkru, Bangkok 10140, Thailand

Pipat Chaiwiwatworakul
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The Joint Graduate School of Energy and Environment, CHE Center for Energy Technology and Environment, King Mongkut’s University of Technology Thonburi, 126 Pracha-Uthit Road, Bangmod, Tungkru, Bangkok 10140, Thailand

Surapong Chirarattananon
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The Joint Graduate School of Energy and Environment, CHE Center for Energy Technology and Environment, King Mongkut’s University of Technology Thonburi, 126 Pracha-Uthit Road, Bangmod, Tungkru, Bangkok 10140, Thailand

Satinee Wattanakit
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Faculty of Architecture, Rajamangala University of Technology Srivijaya, 1 Ratchadamnoennok Road, Boyang Sub-district, Muang District, Songkhla 90000, Thailand

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Published In
Vol 25 No 2, Feb 28, 2021
How to Cite
[1]
A. Aryal, P. Chaiwiwatworakul, S. Chirarattananon, and S. Wattanakit, “A Field Survey of Thermal Comfort in Air-conditioned Space in Songkhla’s Hot Humid Climate”, Eng. J., vol. 25, no. 2, pp. 235-244, Feb. 2021.
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