太阳能PV/T集热系统性能优化研究  

Research on performance optimization of PV/T solar collector system

作　　者：彭浩 王静毅 寿春晖 叶建君 纪培栋 代彦军[3] Peng Hao;Wang Jingyi;Shou Chunhui;Ye Jianjun;Ji Peidong;Dai Yanjun(Zhejiang Energy Group R&D Institute Co.,Ltd.,Hangzhou 311121,China;Key Laboratory of Solar Energy Utilization and Energy Saving Technology of Zhejiang Province,Hangzhou 311121,China;School of Mechanical Engineering,Engineering Research Center of Solar Energy and Refrigeration,MOE,Shanghai Jiao Tong University,Shanghai 200240,China;Zhejiang Energy Beilun Power Generation Co.,Ltd.,Ningbo 315000,China;Xiaoshan Power Plant of Zhejiang Zheneng Electric Power Co.,Ltd.,Hangzhou 311251,China)

机构地区：[1]浙江浙能技术研究院有限公司,浙江杭州311121 [2]浙江省太阳能利用及节能技术重点实验室,浙江杭州311121 [3]上海交通大学机械与动力工程学院太阳能发电与制冷教育部工程研究中心,上海200240 [4]浙江浙能北仑发电有限公司,浙江宁波315000 [5]浙江浙能电力股份有限公司萧山发电厂,浙江杭州311251

出　　处：《可再生能源》2023年第5期604-610,共7页Renewable Energy Resources

基　　金：国家重点研发计划(2019YFE0104900)。

摘　　要：水工质太阳能PV/T(光伏/光热)集热技术可实现电热联产,应用潜力巨大,但在电热联产能量转化及系统优化方面的研究不够深入。文章采用验证后的TRNSYS模型,对水工质PV/T(光伏/光热)集热器及系统进行了优化研究。结果表明,在基准工况下,优化后的PV/T集热器发电效率、热效率和总效率相比优化前分别相对提升50.22%,27.47%和32.92%。以PV/T集热系统CO_(2)排放最低为优化目标,系统存在最佳工质质量流量、最佳温控器设置温差和最佳水箱体积,优化后的系统在杭州应用时,系统年度热效率、电效率和总效率分别为32.41%,18.65%和51.06%,并且该系统无论耦合电加热还是热泵,在CO_(2)排放或成本上都具有一定竞争性。Water type PV/T technology has great potential application in practice for its cogeneration characteristic,but the research on energy conversion of cogeneration and system optimization is not deep enough.In this paper,the validated TRNSYS model is used to optimize the PV/T collector and system.The results show that electrical efficiency,thermal efficiency and total efficiency of the optimized PV/T collector under the basic condition are increased by 50.22%,27.47%and 32.92%respectively.Taking the lowest CO_(2) emission of PV/T collector system as the optimization objective,there exist the best working medium mass flow,the best temperature difference of thermostat setting and the best water tank volume.When the optimized system is applied in Hangzhou,the annual thermal efficiency,electrical efficiency and total efficiency of the collector are 32.41%,18.65%and 51.06%respectively.It is also shows that PV/T collector system is competitive in CO_(2) emission or cost whether coupled with electric heating or heat pump.

关 键 词：光伏/光热 TRNSYS 优化 质量流量 水箱体积 

分 类 号：TK513.5[动力工程及工程热物理—热能工程]