典型办公座椅附加热阻研究
Research on added thermal insulation of typical office chairs
摘要：
服装热阻是影响室内人体热舒适的重要因素,了解坐姿下座椅的附加热阻是准确预测室内人体热舒适的关键。本研究通过现场调研选择了6种典型办公座椅及不同季节的3套典型服装,利用暖体假人实验研究了站姿与坐姿下整体及局部热阻的变化规律,比较了相关文献与标准中坐姿状态下的服装热阻值及座椅的附加热阻值,给出了不同办公座椅各季节的附加热阻值。研究发现:人体从站姿到坐姿整体热阻值会降低6%～10%,不同季节服装下座椅的附加热阻值在0.02～0.24 clo范围内,比国内外相关标准范围更广。
Abstract：
Clothing thermal insulation is an important factor affecting indoor human thermal comfort. Understanding the added thermal insulation provided by the chair under sitting posture is the key to accurately predicting indoor human thermal comfort. In this study, six typical office chairs and three typical clothing ensembles in different seasons are selected through on-site research. The changes of the overall and local clothing thermal insulation in standing and sitting postures are studied using a thermal manikin. The clothing thermal insulation value in sitting posture and the added thermal insulation value of chairs in relevant literature and standards are compared, and the added thermal insulation value of different office chairs in each season is given. The research finds that the overall thermal insulation value of clothing decreases by 6% to 10% from standing to sitting posture, and the added thermal insulation value of chairs under clothing in different seasons ranges from 0.02 clo to 0.24 clo, which is wider than the range of relevant standards at home and abroad.
Keywords:clothing thermal insulation; chair added thermal insulation; local thermal insulation; thermal comfort; sitting posture; standing posture