炕-地组合供暖末端室内热环境及其热均匀性评价实验研究
Experimental study on indoor thermal environment and thermal uniformity evaluation of combined floor and Kang heating terminal
摘要：
为满足西北村镇居民冬季室内分时分区热需求，提出了一种炕-地组合供暖末端形式，对组合末端4种运行模式下的室内热环境营造效果进行了对比实验研究。掌握了组合末端不同运行模式下室内热环境昼夜变化特征，对比分析了温度空间不均匀性和辐射不均匀性。结果表明：组合末端单独运行时均无法同时满足昼夜室内舒适温度要求，且温度空间均匀性和辐射均匀性均较差；共同运行时室内热环境营造效果最好，但室内空气温度却高于舒适温度，存在一定的热量浪费；交替运行时能较好地满足昼夜室内舒适温度要求，且热均匀性较好，该运行模式具有显著优势。研究发现了组合末端应用的可行性及适宜运行模式，为西北村镇建筑应用组合末端改善室内热环境提供了依据。
Abstract：
In order to meet the temporal-spatial partition thermal demand of residents in northwest villages and towns in winter, a combined floor and Kang heating terminal is proposed, and a comparative experimental study is carried out on the indoor thermal environment construction effect of the combined terminal in four operating modes. The characteristics of day and night of indoor thermal environment in different operating modes of the combined terminal are mastered. The temperature space heterogeneity and radiation heterogeneity are compared and analysed. The results show that when the combined terminal is operated alone, it could not meet the requirements of indoor comfortable temperature of day and night at the same time, and the uniformities of temperature space and radiation are poor. When running together, the indoor thermal environment has the best effect, but the indoor temperature is higher than the indoor comfortable temperature, resulting in a certain heat waste. When running alternately, it can better meet the requirements of indoor comfortable temperature of day and night with the better thermal uniformity, so it has significant advantages. This study finds the feasibility of the combined terminal application and its suitable operation mode, which provides the proof for the improvement of indoor thermal environment by applying the combined terminal to the buildings in northwest villages and towns.
Keywords:combinedfloorandKangheatingterminal;indoorthermalenvironment;thermaluniformity;temporal-spatialpartitionthermaldemand;operationmode;temperaturespaceuniformity;radiationuniformity;villageandtownheating