Performance of a low cost solar paraboloidal dish steam generating system

被引：133

作者：

Kaushika, ND ^{[1
]}

Reddy, KS ^{[1
]}

机构：

[1] Indian Inst Technol, Ctr Energy Studies, New Delhi 110016, India

来源：

ENERGY CONVERSION AND MANAGEMENT | 2000年 / 41卷 / 07期

关键词：

dish collector system; solar steam generating system; modified cavity receiver; focal flux distribution; stagnation temperature; cost data;

D O I：

10.1016/S0196-8904(99)00133-8

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This paper presents the design, development and performance characteristics of a low cost solar steam generating system which incorporates recent design and materials innovations of parabolic dish technology. The concentrator is a deep dish of rather imperfect optics, made of silvered polymer reflectors fitted in the aluminum frame of a satellite communication dish. Conventional cavity receivers tend to be inadequate for this concentrator. Semi-cavity and modified cavity receivers, thermally optimised, with the fuzzy focal image have, therefore, been investigated. Preliminary field measurements and cost, as well as performance analyses of the system, indicate a solar to steam conversion efficiency of 70-80% at 450 degrees C and a collector system cost of Rs 8000-9000/m(2) (US$1 = Rs, 40.0). (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：713 / 726

页数：14

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