对采用定容式冷却的低倍聚光光伏/光热系统的设计与研究  

DESIGN AND STUDY ON A LOW CONCENTRATION PHOTOVOLTAIC /THERMAL SYSTEM WITH CONSTANT-VOLUME COOLING

作　　者：徐寅[1] 华永明[1] 王程遥[1] 张耀明[1] 

机构地区：[1]东南大学能源与环境学院太阳能技术研究中心,南京210096

出　　处：《太阳能学报》2013年第9期1638-1643,共6页Acta Energiae Solaris Sinica

摘　　要：为降低系统运行能耗和提高出口热水可利用性,提出一种新型采用定容式冷却的低倍聚光光伏/光热(PVT)系统。于南京选择一晴朗天气,在进水温度为20℃和出水温度为40℃的条件下,进行室外实验。实验结果表明该系统的热效率可达39.4%,电效率可达14.1%。同时,还采用有限容积法对该系统进行建模,以实验当天的环境数据为基础对系统热性能和电性能进行模拟,模拟结果与实验吻合良好,为进一步优化该系统打下基础。A novel low concentration photovoltaic/thermal system with constant-volume cooling was proposed. The outdoor experiment, carried out in Nanjing, showed that the thermal efficiency could approach to 39. 4%, while the electrical efficiency could approach to 14. 1%. Applying the finite-difference method, a model of this system was also derived in the paper. Based on the measured environment data, the performance of this system was simulated and validated by the experiment data.

关 键 词：光伏 光热系统 效率 定容冷却 PVT集热器 

分 类 号：TK513[动力工程及工程热物理—热能工程]