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

页码：90 / 96

页数：7

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