睡袋的热舒适模型

Model for thermal comfort of sleeping bags

鉴于目前已有的睡袋热舒适模型预测值与试验观察值一致性较差的情况,在详尽分析和计算人体与环境热交换数据的基础上,结合人体热平衡方程,提出一种新的预测睡袋舒适温度的模型。为验证该模型,将60名受试者分成3组,分别做热阻值为4.3、5.6、6.6 clo的睡袋试验。对受试者热感觉数据的分析结果表明,该模型的预测值与实际热中性温度非常接近。模型预测值与受试者的试验结果吻合,该模型适合于预测户外休闲活动使用睡袋时的舒适温度。

Some researchers proposed several thermal comfort models of sleeping bags. The predictions from these models were in poor agreement with experimental observations. In this paper,a new model is developed to predict comfort temperatures of sleeping bags on the basis of the elaboration and calculation of the heat exchange between the human body and the environment,in combination with the general heat balance equation. In order to verify this model,sixty subjects were divided into three groups. Each group was tested one of the three sleeping bags with thermal insulation of 4. 3 clo,5. 6 clo and 6. 6 clo. The results indicated the predictions of this model were very close to the actual neutral temperatures based on the analysis of thermal sensation data of subjects. Since this model predictions were in good agreement with experimental results from subjects,it is applicable to predict comfort temperatures when people use sleeping bags for recreational activities in outdoor environments.