摘要
对PVT系统进行了合理的假设,建立了一维数学模型,对光伏电池玻璃盖板表面温度、系统水箱中水的温度等变量进行了数值模拟。搭建了PVT系统电、热性能综合实验台,并通过实验,分析了系统的电性能与热性能。结果表明,由于水箱容量、辐照强度以及封装工艺的限制,特定系统中水的温升存在一个最大值。该文涉及的系统最大温升约为18℃。同时,选取了一天中太阳辐射最强时段与环境温度最高时段进行电性能的实验研究,发现PVT组件在太阳辐射强度较大时相对发电效率提高约8%,而在环境温度较高且辐射强度较小的情况下其发电效率较普通组件没有过多优势。
A mathematical model was developed by using some reasonable assumptions based on PVT system. Through the model, thermal and electrical performance of solar PV-thermal （PVT） hybrid system were studied. An experiment rig is established also, by which, some experiments are carried out to analysis the performance of this system. The temperature rising of 18℃ for such a PVT system was limited by the volume of the water tank, the intensity of solar radiation and the packaging technology of the PVT system. Experimental studies of electrical performance were conducted for the intense solar radiation and maximum ambient temperature, respectively. The experimental results show that the relative electric generation efficiency is increased by 8 % for the PVT system with intense solar radiation, otherwise it is considered to be the same as the ordinary component.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2010年第8期999-1004,共6页
Acta Energiae Solaris Sinica
关键词
PVT系统
数值模拟
实验研究
电性能
PVT system
numerical simulation
experimental study
electrical performance
