太阳能跨季节储热建筑供热系统和土壤储热实验分析.pdfVIP

太阳能跨季节储热建筑供热系统及土壤储热实验分析 王恩宇 齐承英 杨华 张慧川 吕延松 （河北工业大学能源与环境工程学院，天津，300401） 摘 要 根据天津城郊别墅类建筑的冷热负荷特点，设计建立了太阳能跨季节储热建筑供热系统。该系统 采用土壤蓄热实现夏季太阳能的跨季节储存，冬季采用太阳能热水或利用热泵提取土壤蓄热进行建筑供 热，实现了太阳能的跨季节储热与热泵系统联合运行。短期的实验数据表明，在 36 天时间内，储热区土 壤温度平均升高了 1.3℃，采用垂直埋管换热土壤蓄热系统实现太阳能的跨季节储存是可行的。长期储热 效果有待进一步研究。太阳能跨季节储存及热泵联合供热系统的设计应注意各子系统的合理匹配，以提高 系统综合能效。 关键词 太阳能 跨季节储热 地源热泵 建筑供热 A SOLAR ENERGY SYSTEM WITH SEASONAL STORAGE FOR BULIDING HEATING AND EXPERIMENTAL ANALYSIS OF SOIL HEAT STORAGE Wang Enyu Qi Chengying Yang Hua Zhang Huichuan Lü Yansong (School of Energy and Environment Engineering, Hebei University of Technology, Tianjin, 300401) Abstract A Solar heating system with seasonal storage is designed and built for the villa buildings in Tianjin suburb. The solar energy was stored in the soil in summer, and was taken out by the ground-source heat bump for building heating in winter. The solar energy collected in winter was used directly for heating. The test data in a short-term experiment indicated that the soil temperature in the heat storage area increased averagely 1.3 centigrade degree after 36 days. The experimental results confirmed that using a vertical duct storage system for the seasonal solar energy storage is viable.. Long-term effects of the solar energy storage system will be needed further study. To design the solar energy seasonal storage and heat bump combined heating system, the reasonable subsystem design should be paid more attention to enhance energy efficiency. Keywords Solar energy Seasonal heat storage Ground-source heat bump Building Heating 筑中，夏季冷负荷远小于冬季热负荷，如果单独采 1．绪论 用地源热泵供热势必使地下温度逐年降低。为了弥 补该系统的不足，采用太阳能补热是非常现实的做 在能源与环境问题日益突出的今天，地源热泵 法。 作为清洁、高效的供热空调系统正受到越来越多的 太阳能的能流密度低、受季