太阳能高温热发电蓄热技术研究进展  

Recent Advances in the Study of Solar Energy High-temperature Heat Power Generation and Accumulation Technologies

作　　者：杨小平[1] 杨晓西[2] 丁静[3] 杨敏林[2] 

机构地区：[1]华南理工大学强化传热与过程节能教育部重点实验室,广东广州510640 [2]东莞理工学院广东省分布式能源系统重点实验室,广东东莞523808 [3]中山大学工学院,广东广州5100062

出　　处：《热能动力工程》2011年第1期1-6,118,共6页Journal of Engineering for Thermal Energy and Power

基　　金：国家863探索导向基金资助项目(2009AA05Z417);国家973计划基金资助项目(2010CB227306);国家自然科学重点基金资助项目(50930007);东莞理工学院自然科学青年基金资助项目(2010ZQ08)

摘　　要：对应用于太阳能高温热发电的各种蓄热原理、蓄热介质和蓄热过程进行了详细的分析和比较。以混凝土或铸造陶瓷为介质的蓄热方法投资成本低,多用于槽式发电系统中;以熔盐作为介质的双罐蓄热系统技术风险低、可实现连续、稳定发电,较适用于塔式系统;斜温层单罐蓄热系统技术风险相对较高,但其投资成本可以降低;直接蒸汽发电系统对传输系统的耐压提出了非常高的要求。高温相变蓄热和化学反应蓄热技术还处于实验研究阶段,需要寻找更合适的相变材料、热化学反应和装置。An analysis and comparison in detail of various heat accumulation theories,media and processes used in solar energy high-temperature heat power generation was conducted.The heat accumulation methods using concrete or cast ceramics as a medium have a low investment cost,thus mostly used in trough type power generation systems.The dual tank heat accumulation system using melted salt as its medium has a low technical risk and can realize a continuous and stable power generation,therefore relatively applicable for a tower type system.The slanting temperature layer single tank heat accumulation system has a relatively high technical risk,but its investment cost can be reduced.The direct steam power generation system sets a very high standard for the pressure endured by its transmission system.The high-temperature phase change heat accumulation and chemical reaction heat accumulation technologies are still in the stage for experimental study,needing to find a more appropriate phase change material,thermal chemical reaction and device.

关 键 词：太阳能 热发电 蓄热 

分 类 号：TK513[动力工程及工程热物理—热能工程]