Annual performance of building-integrated photovoltaic/water-heating system for warm climate application

被引：111

作者：

Chow, T. T. ^{[1
]}

Chan, A. L. S. ^{[1
]}

Fong, K. F. ^{[1
]}

Lin, Z. ^{[1
]}

He, W. ^{[2
]}

Ji, I. ^{[2
]}

机构：

[1] City Univ Hong Kong, Fac Sci & Engn, Div Bldg Sci & Technol, Bldg Energy & Environm Technol Res Unit, Kowloon, Hong Kong, Peoples R China

[2] Univ Sci & Technol China, Dept Thermal Sci & Energy Engn, Hefei 230026, Peoples R China

来源：

APPLIED ENERGY | 2009年 / 86卷 / 05期

关键词：

Hybrid solar system; Photovoltaic; Solar thermal; Building-integrated design; COLLECTOR SYSTEM; PLATE; WATER; MODEL;

D O I：

10.1016/j.apenergy.2008.09.014

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

A building-integrated photovoltaic/water-heating (BiPVW) system is able to generate higher energy output per unit collector area than the conventional solar systems. Through computer simulation with energy models developed for this integrative solar system in Hong Kong, the results showed that the photovoltaic/water-heating (PVW) system is having much economical advantages over the conventional photovoltaic (PV) installation. The system thermal performance under natural water circulation was found better than the pump-circulation mode. For a specific BiPVW system at a vertical wall of a fully air-conditioned building and with collectors equipped with flat-box-type thermal absorber and polycrystalline silicon cells, the year-round thermal and cell conversion efficiencies were found respectively 37.5% and 9.39% under typical Hong Kong weather conditions. The overall heat transmission through the PVW wall is reduced to 38% of the normal building facade. When serving as a water pre-heating system, the economical payback period was estimated around 14 years. This greatly enhances the PV market opportunities. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：689 / 696

页数：8

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