墙面式辐射供冷和供暖时的室内热过程实验研究

Experimental research on indoor thermal process of house heated and cooled by wall radiation

根据热舒适性理论分析室内平均辐射温度对人体热感觉的影响。通过实验分别对冬、夏两季关闭和开启辐射板时,室内温度分布情况及平均辐射温度与室内温度的关系进行分析和探讨。研究结果表明:采用墙面式辐射供冷和供暖,在达到同样的室内温度前提下,冬季室内平均辐射温度高于传统空调的平均辐射温度,夏季室内平均辐射温度低于传统空调的平均辐射温度,室内垂直方向和水平方向的温差均在人体舒适要求的范围内,可见,墙面式辐射供暖和供冷具有舒适度高、能耗低的特点。

The effect of indoor mean radiant temperature on human thermal sensation was analyzed, according to the theory of thermal comfort. The indoor temperature distribution and the relationship between mean radiant temperature and indoor temperature were analyzed and discussed experimentally when the radiant plate was opened or closed in winter and summer. The results show that in the context of the same indoor temperature for the premise, indoor mean radiant temperature is higher than conventional air- conditioning temperature in winter, that indoor mean radiant temperature is lower than conventional air- conditioning temperature in summer, and that the vertical and horizontal temperature difference are at the range of human comfort requirement by the means of wall radiation. Accordingly, heating and cooling by wall radiation has the characteristic of good thermal comfort and lower energy consumption.