Three-dimensional numerical study of heat transfer characteristics in the receiver tube of parabolic trough solar collector

被引：255

作者：

Cheng, Z. D. ^{[1
]}

He, Y. L. ^{[1
]}

Xiao, J. ^{[1
]}

Tao, Y. B. ^{[1
]}

Xu, R. J. ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Sch Energy & Power Engn, State Key Lab Multiphase Flow Power Engn, Xian 710049, Shaan Xi, Peoples R China

来源：

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER | 2010年 / 37卷 / 07期

基金：

美国国家科学基金会;

关键词：

Heat transfer characteristics; Coupled heat transfer; Solar energy flux distribution; Monte Carlo Ray-Trace Method; Parabolic trough collector; WIND FLOW; PERFORMANCE; RADIATION;

D O I：

10.1016/j.icheatmasstransfer.2010.05.002

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The solar energy flux distribution on the outer wall of the inner absorber tube of a parabolic solar collector receiver is calculated successfully by adopting the Monte Carlo Ray-Trace Method (MCRT Method). It is revealed that the non-uniformity of the solar energy flux distribution is very large. Three-dimensional numerical simulation of coupled heat transfer characteristics in the receiver tube is calculated and analyzed by combining the MCRT Method and the FLUENT software, in which the heat transfer fluid and physical model are Syltherm 800 liquid oil and LS2 parabolic solar collector from the testing experiment of Dudley et al., respectively. Temperature-dependent properties of the oil and thermal radiation between the inner absorber tube and the outer glass cover tube are also taken into account. Comparing with test results from three typical testing conditions, the average difference is within 2%. And then the mechanism of the coupled heat transfer in the receiver tube is further studied. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：782 / 787

页数：6

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