严寒地区太阳能相变蓄热地板辐射供暖系统运行控制策略实验研究
Experiment research on control strategy of solar phase change thermal storage floor heating system in severe cold zone
摘要：
新疆地区供暖期长达6个月且太阳能资源高达5 800 MJ/（m2·a），为太阳能利用提供了有利条件。利用太阳能作为地板辐射供暖热源，其难点之一是解决太阳能变化不定与建筑供暖需求连续稳定之间的矛盾。以乌鲁木齐市某办公建筑为例，构建了太阳能相变蓄热地板辐射耦合供暖系统，实验研究了不同太阳辐照度下集热器进出口温度及系统运行方式对室内供暖效果的影响，得到了不同室外气象条件下该系统的供热量、蓄热量和补热量，总结得到了该系统在整个供暖期的运行控制策略。
Abstract：
The heating period in Xinjiang area is up to 6 months, and annual solar energy distribution is about 5 800 MJ/(m2·a), which provides favorable conditions for solar thermal utilization. One of the issues of solar energy heating is how to solve the contradiction between the unstable solar energy and the continuous building heating demand. Taking an office building in Urumqi as an example, constructs a hybrid solar phase change thermal storage floor heating system. Experimentally studies the effect of the solar collector inlet and outlet temperature and the system operation mode on indoor heating in the different solar radiation intensity, obtains the heating capacity, thermal storage capacity and make-up heat capacity of the system, and summarizes the control strategy of this hybrid system.
Keywords:solar thermal utilization, phase change thermal storage, floor radiant heating, control strategy, energy saving building