光伏自驱动平板式太阳能空气集热器设计及其性能实验  

DESIGN AND PERFORMANCE TEST OF PHOTOVOLTAIC SELF-DRIVEN SOLAR AIR COLLECTOR

作　　者：胡建军 张广秋 朱晴 郭萌 陈立娟 Hu Jianjun;Zhang Guangqiu;Zhu Qing;Guo Meng;Chen Lijuan(Department of Building Environment and Energy Applications,Civil Engineering and Mechanics,Yanshan University,Qinhuangdao 066004,China;Department of Electrical Engineering and Automation,College of Electrical Engineering,Nanjing Institute of Technology,Nanjing 210000,China)

机构地区：[1]燕山大学建筑工程与力学学院建筑环境与能源应用工程系,秦皇岛066004 [2]南京工程学院电力工程学院电气工程及其自动化系,南京210000

出　　处：《太阳能学报》2021年第8期281-288,共8页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(51890881);河北省自然科学基金(E2020203028);燕山大学大学生创新创业训练计划(S201910216047)。

摘　　要：提出一种可脱离城市电网自行工作的机械通风型平板式太阳能空气集热器,并进行相应的结构设计、电气设计和性能实验。通过开展实验研究,验证集热器自驱动运行的可行性,并通过对其内部温度分布、光电效率及光热效率分析,获得了其工作特性。实验结果表明,在典型气象条件下,集热器的工作过程可分为5个阶段(上升阶段、前过渡阶段、准恒温阶段、后过渡阶段、下降阶段),存在一个持续时间约2 h的准恒温阶段,在这个阶段自驱动集热器的出口温度、空气流量几乎维持恒定。在光伏组件45°置于首腔的情况下,集热器的光电转换效率在准恒温阶段达到最大值为5.4%,光热转换效率最大值为74.2%,工作日平均热效率约为49.2%。A flat self-driven mechanical ventilated solar air collector(SDSAC)which can work independently without the urban power grid was proposed based on a previous studied baffle-type solar air collector. The structural design,electrical design and performance test of this new kind collector were carried out in this paper. The feasibility of self-driven operation of SDSAC was verified by the experiment,and its working characteristics were analyzed by monitoring its internal temperature distribution,photoelectric efficiency and solar thermal efficiency on typical weather day. The experimental results show that the working process of SDSAC can be divided into five stage(ascending stage,pre-transition stage,quasi-isothermal stage,post-transition stage,descending stage)under typical meteorological condition. There exists a quasi-isothermal stage. During this period,research the outlet temperature and air flow rate of SDSAC are almost constant lasting about two hours. When the PV module is placed at 45° in the first cavity,the photoelectric efficiency of the SDSAC reaches a maximum value of 5.4% and the maximum thermal efficiency is up to 74.2% in the quasi-isothermal stage. The average thermal efficiency of the SDSAC can reach about 49.2%.

关 键 词：太阳集热器 集热器效率 光伏组件 空气集热器 实验研究 

分 类 号：TK513[动力工程及工程热物理—热能工程]