4、采暖系统。通过实验和理论分析方法对系统的室内热环境、地板热工性能、节能性、经济性等展开了研究。开发了一种全封闭式蓄热型地板辐射采暖管作为并联同程可调节型蓄热地板的基本组件，建立了采暖系统实验平台。对采暖房间展开了间歇供暖测试，主要分为太阳能蓄热工况、谷价电蓄热工况、太阳能与谷价电分时蓄热工况。利用作用温度、地表温度、垂直温差、预测平均评价（Predicted Mean Vote，PMV）、预测不满意百分比（Predicted Percent Dissatisfied，PPD）指标对系统室内热环境进行了评价；采用对比分析、相关性分析、回归分析方法对热负荷高峰与低谷间歇供暖的室内热环境
5、进行了研究；通过对比单时蓄热工况和分时蓄热工况的室内热环境，研究了间歇期长短对供暖效果的影响。分析了地板内部相变过程，对地板热工性能进行了评价。相变蓄热型地板辐射间歇采暖系统用于农村住宅达到了居民的热舒适要求。在一个间歇供暖周期内，热负荷低谷供暖的室内热环境较热负荷高峰供暖的热惰性强，若将同样的能量分时段提供给房间，则室内温度场更均匀，热舒适度更高。系统利用太阳能与夜晚电力低谷电能作为热源，节能性、经济性及环境效益显著。关键词：相变材料，地板辐射采暖，热工性能，热舒适，间歇供暖IABSTRACTAs a comfortable and energy saving way of he
6、ating, the radiant floor heating system getsmore attention by urban residents nowadays. However, the rural areas in northern China still use the traditional heating system such as Kang, which has poor thermal comfort and energy efficiency,and pollutesenvironment. With the improvement of living
7、 standards of rural residents, it will become a trend of future heating that developing the radiant floor heating system with clean energy. At present, the government is vigorously promoting coal-to-electricity heating in northern rural
