商场冷凝水耦合光伏/光热系统的应用分析  

Application and Analysis on Condensate Water-cooled PV/T System in Shopping Mall

作　　者：徐航 张长兴[1] 路希正 彭冬根[2] XU Hang;ZHANG Chang-xing;LU Xi-zheng;PENG Dong-gen(Shandong Provincial Key Laboratory for Disaster Prevention and Mitigation in Civil Engineering,Shandong University of Science and Technology,Qingdao 266590,China;School of Infrastructure Engineering,Nanchang University,Nanchang 330031,China)

机构地区：[1]山东科技大学山东省土木工程防灾减灾重点实验室,青岛266590 [2]南昌大学工程建设学院,南昌330031

出　　处：《科学技术与工程》2023年第2期589-595,共7页Science Technology and Engineering

基　　金：山东省自然科学基金面上项目(ZR2020ME187);山东省高等学校科技计划(J16LG06);山东科技大学科研创新团队支持计划(2015KYTD104)。

摘　　要：太阳能光伏光热(solar photovoltaic-thermal,PV/T)技术将光伏和光热结合,可实现产电效率的提高和低品位热源的综合利用。基于商场空调冷凝水的实时回收量,本文研究建立了冷凝水水冷式PV/T系统,研究了该系统的性能和环境效益。在确定商场的空调冷凝水的逐时水量的基础上,将冷凝水水冷式PV/T系统与单一光伏(photovoltaic,PV)系统的性能进行对比分析。结果表明,冷凝水水冷式PV/T系统通过收集制冷季商场内空调产生的大量冷凝水作为冷却介质,降低了光伏电池板的温度,典型日的光伏效率提升了17.78%,在整个制冷季,冷凝水水冷式PV/T系统较单一的PV系统净发电量增加了365.55 kW·h,具有6938.27 kW·h的节能效益,可减排6.439 t二氧化碳。Solar photovoltaic-thermal(PV/T)technology combines photovoltaic and photothermal to achieve the improvement of power generation efficiency and the recovery of low-grade heat sources.Based on the real-time recovery of condensate water from air conditioners in the shopping mall,a condensate water-cooled PV/T system model was established to study its system performance and environmental benefits.After the hourly volume of air-conditioning condensate water was accurately calculated in the shopping mall,the performance of the condensate water-cooled PV/T system and the single photovoltaic(PV)system were compared and analyzed.The results show that the condensate water-cooled PV/T system reduces the temperature of photovoltaic panels by collecting a large amount of condensate water generated by the air-conditioning system in the mall during the cooling season as a cooling medium.The photovoltaic efficiency on a typical day is increased by 17.78%.During the entire cooling season,the condensate water-cooled PV/T system increases the net power generation by 365.55 kW·h than that of the single PV system,which produce the energy-saving benefit of 6938.27 kW·h and can reduce carbon dioxide emissions of 6.439 tons.

关 键 词：空调冷凝水 冷凝水水冷式PV/T系统 光伏效率 发电量 节能效益 

分 类 号：TK519[动力工程及工程热物理—热能工程]