Analytical expression of temperature dependent electrical efficiency of N-PVT water collectors connected in series

被引：56
作者：
Shyam [1 ]
Tiwari, G. N. [1 ]
Al-Helal, I. M. [2 ]
机构：
[1] Indian Inst Technol Delhi, Ctr Energy Studies, New Delhi 110016, India
[2] King Saud Univ, Coll Food & Agr Sci, Dept Agr Engn, Riyadh 11451, Saudi Arabia
来源：
SOLAR ENERGY | 2015年 / 114卷
关键词：
Solar thermal; PVT water collector; Thermal efficiency; Temperature dependent electrical efficiency; SOLAR AIR HEATER; PERFORMANCE EVALUATION; ENERGY; SYSTEM; MODEL;
D O I：
10.1016/j.solener.2015.01.026
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：
In the present study the series combination of N PVT water collectors, partially covered with photovoltaic module, in two different configurations namely case A: Photovoltaic module at lower portion; case B: Photovoltaic module at upper portion, have been analyzed. Analytical expressions for instantaneous thermal efficiency and temperature dependent electrical efficiency have been derived. The performances of both configurations have been compared on thermal efficiency basis and temperature dependent electrical efficiency basis. It has been concluded that at moderate mass flow rate, for large number of PVT water collectors connected in series both cases give nearly same results. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：61 / 76
页数：16
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