Numerically assisted analysis of flat and corrugated plate solar collectors thermal performances

被引：40
|
作者：
Dovic, Damir [1 ]
Andrassy, Mladen [1 ]
机构：
[1] Univ Zagreb, Fac Mech Engn & Naval Architecture, Dept Thermal & Proc Engn, Zagreb 10000, Croatia
来源：
SOLAR ENERGY | 2012年 / 86卷 / 09期
关键词：
Solar collectors; Thermal performances; Numerical models; Chevron plates; HEAT-TRANSFER; MODEL;
D O I：
10.1016/j.solener.2012.05.016
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：
The paper presents the results of experimentally supported numerical analysis performed in order to investigate the possibilities to improve the thermal efficiency of plate solar collectors. Different numerical models were developed in order to asses the influence of design and operating parameters such as bond conductance between absorber plate and tube, tube diameter, glass cover to absorber plate distance, optical properties of absorber and flow rate on thermal efficiency of collectors. Following the results, two designs of collector without tubes, with parallel flat and corrugated absorber plates of chevron type, is further considered and shown to be an effective way to increase the thermal efficiency of solar energy conversion beyond that of commercial glazed and unglazed solar water heaters. Based on the results, the guidelines for design of a new collector prototype consisting of chevron type corrugated plates normally used in plate heat exchangers are provided. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2416 / 2431
页数：16
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