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

Emerson T.A. Gomes; Naum Fraidenraich; Olga C. Vilela; Carlos A.A. Oliveira; Jeffrey M. Gordon

doi:10.1016/j.solener.2019.08.037

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

Emerson T.A. Gomes, Naum Fraidenraich, Olga C. Vilela, Carlos A.A. Oliveira, Jeffrey M. Gordon

The Swiss Institute for Dryland Environmental and Energy Research

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	697-706
Number of pages	10
Journal	Solar Energy
Volume	191
DOIs	https://doi.org/10.1016/j.solener.2019.08.037
State	Published - 1 Oct 2019

Keywords

Aplanat
Intercept factor
Solar concentrator

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Materials Science (all)

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.solener.2019.08.037

Cite this

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title = "Aplanats and analytic modeling of their optical properties for linear solar concentrators with tubular receivers",

abstract = "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.",

keywords = "Aplanat, Intercept factor, Solar concentrator",

author = "Gomes, {Emerson T.A.} and Naum Fraidenraich and Vilela, {Olga C.} and Oliveira, {Carlos A.A.} and Gordon, {Jeffrey M.}",

note = "Funding Information: JMG gratefully acknowledges the hospitality and support of the Institute of Advanced Studies of the University of Western Australia during the writing of this paper. Funding Information: JMG gratefully acknowledges the hospitality and support of the Institute of Advanced Studies of the University of Western Australia during the writing of this paper. Publisher Copyright: {\textcopyright} 2019 International Solar Energy Society",

year = "2019",

month = oct,

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doi = "10.1016/j.solener.2019.08.037",

language = "English",

volume = "191",

pages = "697--706",

journal = "Solar Energy",

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T1 - Aplanats and analytic modeling of their optical properties for linear solar concentrators with tubular receivers

AU - Gomes, Emerson T.A.

AU - Fraidenraich, Naum

AU - Vilela, Olga C.

AU - Oliveira, Carlos A.A.

AU - Gordon, Jeffrey M.

N1 - Funding Information: JMG gratefully acknowledges the hospitality and support of the Institute of Advanced Studies of the University of Western Australia during the writing of this paper. Funding Information: JMG gratefully acknowledges the hospitality and support of the Institute of Advanced Studies of the University of Western Australia during the writing of this paper. Publisher Copyright: © 2019 International Solar Energy Society

PY - 2019/10/1

Y1 - 2019/10/1

N2 - 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.

AB - 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.

KW - Aplanat

KW - Intercept factor

KW - Solar concentrator

UR - http://www.scopus.com/inward/record.url?scp=85072577938&partnerID=8YFLogxK

U2 - 10.1016/j.solener.2019.08.037

DO - 10.1016/j.solener.2019.08.037

M3 - Article

AN - SCOPUS:85072577938

SN - 0038-092X

VL - 191

SP - 697

EP - 706

JO - Solar Energy

JF - Solar Energy

ER -

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

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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