光伏/光热一体化系统性能及流速影响分析

Analysis on the impact of velocity and performance of PVT integration system

本文介绍了光伏/光热一体化系统(PVT)集热器原理、优点,并将PVT集热器系统和常规热水器、PV光伏板置于同一环境条件下实验,数据表明PVT集热器系统相对常规热水器和PV光伏板综合效率同比分别增加7.5%和459%,用加权效率法为基准更是增加52.5%和202%;文中也通过实验对比变流速和恒流速两种PVT系统,并进行了效率对比分析.研究分析表明PVT集热器系统拥有的优势使得其拥有巨大的发展空间和潜能.

This paper briefly introduces the advantages and principle of PVT system.Then PVT collector systems and water heaters,PV photovoltaic panels working under the same environmental conditions,experimental were taken.The results have been showed:the over-all efficiency of PVT collector system are 7.5%and 459%high than water heaters and PV photovoltaic panels respectively,furthermore,utilized by weighted efficiency method,the efficiency are 52.5%and 202%.According to contrasting the following two kinds of PVT system:the constant flow velocity type PVT system and the vary flow velocity type PVT system.PVT collector system has a huge advantage so that there is still spacious room for development.