Aplanats and analytic modeling of their optical properties for linear solar concentrators with tubular receivers

被引：9

作者：

Gomes, Emerson T. A. ^{[1
]}

Fraidenraich, Naum ^{[1
]}

Vilela, Olga C. ^{[1
]}

Oliveira, Carlos A. A. ^{[2
]}

Gordon, Jeffrey M. ^{[3
,4
]}

机构：

[1] Univ Fed Pernambuco, Ctr Energias Renovaveis, Dept Energia Nucl, Av Prof Luiz Freire 1000, BR-50740540 Recife, PE, Brazil

[2] Inst Fed Alagoas, Campus Palmeira Indios,Av Alagoas, BR-57608180 Palmeira Dos Indios, AL, Brazil

[3] Ben Gurion Univ Negev, Jacob Blaustein Inst Desert Res, Dept Solar Energy & Environm Phys, Sede Boger Campus, IL-8499000 Midreshet Ben Gurion, Israel

[4] Univ Western Australia, Sch Mech & Chem Engn, Perth, WA 6009, Australia

来源：

SOLAR ENERGY | 2019年 / 191卷

关键词：

Aplanat; Solar concentrator; Intercept factor; COLLECTORS; EFFICIENCY;

D O I：

10.1016/j.solener.2019.08.037

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：

We analyze the performance of aplanats as linear solar concentrators for tubular receivers, principally whether, relative to parabolic troughs, they can boost concentration at high intercept factor. For the two basic viable categories of aplanats, we derive an analytic model for calculating the intercept factor: the first such exact solution, which obviates the need for raytracing. The aplanats admit collection both from single- and double-reflection rays - fully accounted for by the analytic model. Illustrative designs that achieve high intercept factor and can increase concentration substantially are presented.

引用

页码：697 / 706

页数：10

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