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暖通空调杂志社>期刊目次>2018年>第8期

电热坐垫和暖脚板作用下局部热舒适分析

Local thermal comfort with electric heating cushions and foot warmers

李 甲 李念平 何颖东 谭 畅 颜金波 李 娜
湖南大学

摘要:

采用电热坐垫和暖脚板对人体足部、大腿和臀部进行局部加热,分析了受热部位热感觉和热舒适的变化及局部热感觉(热舒适)与整体热感觉(热舒适)的关系。实验结果表明:电热坐垫和暖脚板能够显著提高人体局部和整体热舒适;随着电热坐垫和暖脚板表面温度的提高,臀部、大腿和足部的热感觉明显改善;足部热感觉投票值(TSV)高于大腿和臀部,但当背景温度为16 ℃和18 ℃时,大腿对整体热感觉和热舒适的影响最大;不均匀偏冷环境中,人体局部热感觉大于热中性时,局部热舒适较好,整体热感觉接近热中性时,整体热舒适较好。

关键词:电热坐垫,暖脚板,局部热感觉,局部热舒适,整体热感觉,整体热舒适,个性化舒适系统,多元线性回归分析

Abstract:

Uses electric heating cushions and foot warmers to heat feet, thighs and buttock, and analyses the change of local thermal sensation and comfort and the relationship between the local and the overall feelings. The results indicate that electric heating cushions and foot warmers can improve the local and overall thermal comfort significantly. The thermal sensation of feet, thighs and buttock is obviously improved as the surface temperatures of electric heating cushions and foot warmers increase. The thermal sensation vote of feet is higher than those of thighs and buttockwhile thighs have greatest influence on overall thermal sensation and comfort at 16 and 18 of environment temperature. In uneven cold environment, local thermal comfort is improved when local thermal sensation is above thermal neutral, while overall thermal comfort is improved when overall thermal sensation is close to thermal neutral.

Keywords:electricheatingcushion,footwarmer,localthermalsensation,localthermalcomfort,overallthermalsensation,overallthermalcomfort,personalcomfortsystem,multivariatelinearregressionanalysis

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