Climate chamber investigation of the effect of indoor thermal histories on thermal adaptation in different seasons

Yuxin Wu*, Angchen Jiang, Hong Liu*, Baizhan Li, Risto Kosonen

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

5 Citations (Scopus)
31 Downloads (Pure)


The indoor thermal history of residents in the hot summer and cold winter climate zone in China have undergone a significant change in recent years, which also changes their seasonal thermal adaptations and this has formed feed-back effects to the increasing usage of air conditioning units in this area. To study the seasonal variations of thermal adaptation, the thermal comfort experiments were conducted on two groups of participants. Each groups included 20 participants who had indoor history mainly with natural ventilation (NV group) and air-conditioning (AC group), respectively. The results demonstrated that the thermal sensation vote (TSV) in warm environments did not differ between AC and NV subjects in summer. However, the TSV of AC subjects were much lower than that of NV subjects in the same standard effective temperature and skin temperature in a cold environment in winter. Overall, the participants who spent most of their time in AC space in winter showed a low level of thermal adaptation with a narrower acceptable skin temperature range of 32.6 – 33.5 °C. Thus, this study presents the basic information regarding the seasonal effects on human thermal adaptation due to different long-term indoor thermal histories.

Original languageEnglish
Pages (from-to)455-463
Number of pages9
JournalEnergy and Built Environment
Issue number3
Early online date22 Feb 2023
Publication statusPublished - Jun 2024
MoE publication typeA1 Journal article-refereed


  • Cold acclimation
  • Hot summer and cold winter
  • Skin temperature
  • Thermal comfort
  • Thermal experience


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