Numerical simulation of a trapezoidal cavity receiver for a linear Fresnel solar collector concentrator

被引：102
作者：
Facao, Jorge [1 ]
Oliveira, Armando C. [1 ]
机构：
[1] Univ Porto, Dept Mech Engn, Fac Engn, New Energy Technol Unit, P-4200465 Oporto, Portugal
来源：
RENEWABLE ENERGY | 2011年 / 36卷 / 01期
关键词：
Linear Fresnel collector; Trapezoidal cavity receiver; CFD simulations; Overall heat transfer coefficient; ABSORBER;
D O I：
10.1016/j.renene.2010.06.003
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
A new trapezoidal cavity receiver for a linear Fresnel solar collector is analysed and optimized via ray-trace and CFD simulations. The number of receiver absorber tubes and the inclination of lateral walls in the cavity are checked with simplified ray-trace simulation. The CFD simulation makes possible to optimize cavity depth and rock wool insulation thickness. The simulated global heat transfer coefficient, based on primary mirror area, is correlated with a power-law fit instead of a parabolic fit. The correlation results are compared with heat transfer coefficients available for linear Fresnel collector prototypes. Crown Copyright (c) 2010 Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：90 / 96
页数：7
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