基于投影寻踪的热舒适性评价模型

本文根据4个影响热舒适的主要因素(环境温度、风速、相对湿度和平均辐射温度),研究建立了热舒适评价的投影寻踪模型,利用该模型可将影响热舒适的多个指标转换为反映各指标综合信息的投影特征值,并根据投影特征值的差异性大小对热舒适进行客观评价。通过与实际环境的主观评价相比较,表明其评判结果与主观感受是一致的。这种方法计算简单、方便实用,为室内环境热舒适的评价问题提供了一条新的方法与思路。

Evaluation Model for Indoor Thermal Comfort Based on Projeetion Pursuit Algorithm

In this paper,according to the main factors that will influence the indoor thermal comfort,such as temperature,velocity,relative humidity and mean radiant temperature,projection pursuit model for thermal comfort evaluation was established.With this model,the multiple indexes could be converted into a value of projection index which consisted of the comprehensive information.Furthermore,based on the difference of those values,indoor thermal comfort could be evaluated objectively.As a result,by comparing the results of subjective evaluation on environment with those of projection pursuit algorithm,it was indicated that these two methods came to an agreement.The method presented in this paper was very simple for calculating and easy to put into practice,thus,for evaluating the indoor thermal comfort,new method and concept were provided.