THERMAL SCIENCE

International Scientific Journal

Fuquan Liu

,

Minhao Mu

,

Tao Yu

,

Xin ZhangORCID

THERMAL COMFORT IN TYPICAL SEASONS OF SUMMER AND WINTER IN PERSONNEL INTENSIVE AREAS OF UNDERGROUND PUBLIC BUILDINGS OF XI'AN IN CHINA

ABSTRACT
Understanding the thermal comfort of densely populated areas in underground buildings is more significance. This paper takes two typical densely populated areas of underground buildings in Xi'an as examples, conducts questionnaire surveys and field tests on their thermal comfort. The results showed that in winter and summer, the frequency of thermal sensation of underground commercial buildings is higher than that of underground subway platforms, while not much difference in wet sensation and wind speed sensation. The thermal neutral operating temperature for underground commercial buildings in summer and winter is 27.1°C and 20.2°C. The thermal neutral operating temperature for underground subway platforms in summer and winter are 26.7°C and 21.8°C. The expected indoor temperature for underground commercial buildings in summer and winter is 26.6°C and 19.2°C. The expected indoor temperatures for under-ground subway platforms in summer and winter are 25.2°C and 20.6°C. It provides reference value for the creation of thermal environment in densely populated areas of underground buildings.
KEYWORDS
Underground buildings, densely populated areas, thermal comfort, temperature, evaluation
PAPER SUBMITTED: 2025-03-21
PAPER REVISED: 2025-06-27
PAPER ACCEPTED: 2025-06-30
PUBLISHED ONLINE: 2025-08-02
DOI REFERENCE: https://doi.org/10.2298/TSCI250321140L
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2026, VOLUME 30, ISSUE No. 1, PAGES [643 - 656]
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Thermal comfort in typical seasons of summer and winter in personnel intensive areas of underground public buildings of Xi'an in China

© 2026 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence