Human body area view factors for radiative heat transfer: Influence of body region, shape, and posture

IF 7.1 1区工程技术 Q1 CONSTRUCTION & BUILDING TECHNOLOGY

Building and Environment Pub Date : 2025-05-20 DOI:10.1016/j.buildenv.2025.113200

Stanisław Kocik , Agnes Psikuta , Joanna Ferdyn-Grygierek

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Abstract

The study investigates the radiative heat transfer properties of the human body by analysing its whole-body and local area view factors. At the same time, the influence of body shape (slim, regular, overweight) and posture (standing, sitting, sitting on a chair with bent elbows) is considered. Using the Radiance software, detailed simulations were conducted to derive area view factors for the whole body and specific body segments. The validation of the method was performed using an instrumented passive manikin, and the results showed a difference of less than 4 % between the measured and simulated values. The results indicated that area view factors vary over body regions and change meaningfully with body posture. The body shape, in turn, had only a minor effect on both whole-body and local area view factors. The study highlights the importance of accurate area view factor determination for predicting human radiative heat exchange, and hence thermal comfort, and optimising HVAC systems and the design of indoor spaces in built environments. The findings provide a comprehensive dataset for modelling human-environment thermal interactions, essential for applications in medicine, ergonomics, sports, and environmental engineering.

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辐射热传递的人体区域观因素：身体区域、形状和姿势的影响

通过分析人体的全身和局部观因素，研究了人体的辐射传热特性。同时，还考虑了体型（苗条、匀称、超重）和姿势（站着、坐着、弯着胳膊肘坐在椅子上）的影响。利用Radiance软件进行了详细的模拟，得出了整个身体和特定身体部分的面积视图因子。利用仪器被动人体模型对该方法进行了验证，结果表明，测量值与模拟值之间的差异小于4%。结果表明，区域视野因子在不同身体区域之间存在差异，并随身体姿势的变化而发生显著变化。反过来，体型对全身和局部视觉因素的影响都很小。该研究强调了准确的面积视图因子确定对于预测人体辐射热交换的重要性，从而提高热舒适性，优化HVAC系统和建筑环境中室内空间的设计。这些发现为模拟人类与环境的热相互作用提供了一个全面的数据集，这对医学、人体工程学、体育和环境工程的应用至关重要。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

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.