Effects of thermal histories on human thermal adaptation to district heating environments: A cross-sectional investigation in the severe cold zone, China

IF 7.1 1区 工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY
Yuxin Yang , Zhaojun Wang , Fanzhuo Zhou , Juan Yu , Chang Liu
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引用次数: 0

Abstract

Understanding personalized thermal comfort is critical for creating comfortable indoor environments and achieving energy efficiency. Thermal history has a significant impact on human thermal adaptation, but it has received insufficient attention. Combining field investigation and statistical analysis, this study introduces the thermal neutral rate (TNR) and thermal comfort and acceptability rate (TCAR) to analyze the differences in thermal and humidity responses and adaptability among groups with different thermal histories in northern China. Results show that as subjects acclimatize to indoor environments, their thermal neutral temperature rises, and humid sensation votes approach 'neutral' conditions. Participants with no prior northern thermal history require up to 1 year to adapt to district heating environments, while adaptation to humid environments may take 2–3 years. The thermal neutral temperature of the un-adapted subjects was 18.0 °C, and post-adaptation, it varied within the range of 20.2–21.4 °C. For engineers designing indoor environments, maintaining temperatures within the range of 19.1–22.3 °C meets the comfort and acceptability requirements of participants with different thermal histories in the office. These findings provide evidence for understanding human thermal adaptation mechanisms and give recommended heating temperature ranges for comfortable indoor environments in office buildings in the severe cold zone.
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来源期刊
Building and Environment
Building and Environment 工程技术-工程:环境
CiteScore
12.50
自引率
23.00%
发文量
1130
审稿时长
27 days
期刊介绍: Building and Environment, an international journal, is dedicated to publishing original research papers, comprehensive review articles, editorials, and short communications in the fields of building science, urban physics, and human interaction with the indoor and outdoor built environment. The journal emphasizes innovative technologies and knowledge verified through measurement and analysis. It covers environmental performance across various spatial scales, from cities and communities to buildings and systems, fostering collaborative, multi-disciplinary research with broader significance.
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