247-复合式太阳能热泵供热系统的节能优化分析.pdfVIP

复合式太阳能热泵供热系统的 节能优化分析 罗丹吴1，吕建1，王丽文2 （1.天津城建大学能源与安全工程学院，天津 300384；2.，天津 300072） 摘 要：本文主要对天津地区某太阳能热泵供热系统进行优化研究，提出了一种槽式 太阳能集热器、氨吸收式热泵和板式换热器进行组合的复合式太阳能热泵供热系统，并比 较了优化前后的运行能效。文章介绍了太阳能热泵供热系统的设计概况，指出了系统实际 运行中存在辅助热源耗电量大的问题，并依据系统的运行特点引入板式换热器，对其进行 了运行策略的优化；通过对实际工程优化前后的测试，得到系统各设备的耗电量与油温及 水温变化图，依据图表分析太阳能热泵系统能效低的原因并得出优化后的复合式太阳能热 泵系统可节省 381kW·h 的电量，节能效果明显。 关键词：槽式太阳能集热器；氨吸收式热泵；板式换热器；运行策略 Analysis on energy saving optimization of hybrid solar heat pump heating system Danwu Luoa, Jian Lva, Liwen Wangb (a Department of Energy and Safety Engineering, Tianjin Chengjian University, Tianjin 300384; b Tianjin University Research Institute of Architechtural Design Urban Planning, Tianjin 300072) Abstract:In this work, the optimization research on a solar heat pump system in tianjin was conduct, and a hybrid system made by combination of trough type solar collector, ammonia absorption heat pump and plate heat exchanger was built to compare the operating efficiency before and after optimization. This paper introduced the design overview of the solar energy heat pump heating system, pointed out the problem of large power consumption of auxiliary heat source in the system, and optimized its operation strategy with a plate heat exchanger according to the operating characteristics. Through actual measurements of the actual optimized project, the electricity consumption, oil temperature and water temperature of the system equipment were obtained. The results show that the amount of electricity consumption of 381kW·h can be saved. Key words: trough type solar collector; ammonia absorption heat pump; plate heat exchanger; operation strategy 0 引 言 中国正处在经济快速发展的阶段，能源的需求和使用量巨大，而在我国能源结构体系 中，建筑能耗约占总能耗的30%，其中供暖能耗约占民用建筑总能耗的56%-58% [1] 。随着 对太阳能利用技术的不断加深，太阳能用于建筑供热对于解决我国能源短缺和环境污染的 问题具有重要的意义。太阳能与热泵的结合最早是