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平均辐射温度对睡眠环境人体热舒适的影响
Influence of mean radiation temperature on thermal comfort in sleeping environment
【摘要】 本文从睡眠环境人体热舒适角度出发,分析了Fanger PMV模型直接应用于睡眠环境时与修正方程之间的差别。Fanger PMV模型所得结果在一般情况下均高于修正方程,且前者所得结果可通过修正公式得到与后者相同的PMV计算结果。根据睡眠环境PMV修正方程分别分析了在夏季工况与冬季工况下,空气温度与平均辐射温度对人体热舒适的影响情况,得出空气温度对睡眠环境热舒适的影响大于平均辐射温度的影响,且由于冬季床褥系统热阻值的增大,使得两者对PMV的影响幅度均小于夏季工况。
【Abstract】 In view to thermal comfort in sleeping environment,the difference between Fanger PMV model which is applied to sleeping environment directly and modification formula is analyzed in this paper.Generally,the results of Fanger PMV model are higher than those obtained by modification formula.But with the aid of a correction equation, the discrepancy in the two formulas above can be eliminated eventually to gain the same PMV results.Based on the modification formula in sleeping environment proposed by some native scholars,the influence of air temperature and mean radiation temperature on thermal comfort is analyzed under summer and winter conditions.The results indicated that,the influence of air temperature on thermal comfort in sleeping environment is greater than the mean radiation temperature and the influence on PMV in winter is less than that in summer due to the augmentation of the total thermal resistance of a bedding system.
【Key words】 radiation air - conditioning; sleeping environment; thermal comfort; air temperature; mean radiation temperature;
- 【文献出处】 制冷技术 ,Refrigeration Technology , 编辑部邮箱 ,2010年04期
- 【分类号】TU832.16
- 【被引频次】19
- 【下载频次】878