Design and fabrication of a portable Fresnel reflector
Document identifier: oai:dalea.du.se:2263
Publication year: 2006Abstract: This paper presents a feasibility study of a portable Fresnel reflector that was designed and constructed using inexpensive materials and then tested. An aluminium plastic laminated reflector was chosen for its cost, reflectance and flexibility. The prototype Fresnel reflector had nine rings of 5 cm width held in place by a lightweight wooden construction, giving a diameter of 1.05 m. All rings and wooden holders can be assembled and disassembled and be stored in a small bag.
In the tests, a piece of steel was used as receiver. Two different types of surface on the receiver were tested, namely Maxorb sheet and black paint. The tests showed that the Maxorb achieved a stagnation temperature of above 500 °C while the black paint achieved less than 400 °C. The optical efficiency for both was 0.26. Moreover, the collector could remain unadjusted for a duration of 35 minutes without the receiver temperature dropping lower than 300°C at the center.
Authors
Lim Say Yong
Other publications
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Chris Bales
Högskolan Dalarna; Miljöteknik
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header:
identifier: oai:dalea.du.se:2263
datestamp: 2021-04-15T12:29:00Z
setSpec: SwePub-du
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recordContentSource: du
recordCreationDate: 2006-08-21
identifier: http://urn.kb.se/resolve?urn=urn:nbn:se:du-2263
titleInfo:
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lang: eng
title: Design and fabrication of a portable Fresnel reflector
abstract: This paper presents a feasibility study of a portable Fresnel reflector that was designed and constructed using inexpensive materials and then tested. An aluminium plastic laminated reflector was chosen for its cost reflectance and flexibility. The prototype Fresnel reflector had nine rings of 5 cm width held in place by a lightweight wooden construction giving a diameter of 1.05 m. All rings and wooden holders can be assembled and disassembled and be stored in a small bag.\nIn the tests a piece of steel was used as receiver. Two different types of surface on the receiver were tested namely Maxorb sheet and black paint. The tests showed that the Maxorb achieved a stagnation temperature of above 500 °C while the black paint achieved less than 400 °C. The optical efficiency for both was 0.26. Moreover the collector could remain unadjusted for a duration of 35 minutes without the receiver temperature dropping lower than 300°C at the center.
language:
languageTerm: eng
genre:
conference/other
vet
note:
Published
2
name:
@attributes:
type: personal
namePart:
Yong
Lim Say
role:
roleTerm: aut
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type: personal
authority: du
namePart:
Bales
Chris
role:
roleTerm: aut
affiliation:
Högskolan Dalarna
Miljöteknik
nameIdentifier: cba
originInfo:
dateIssued: 2006
place:
placeTerm: Glasgow UK
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type: host
titleInfo:
title: Eurosun 2006
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form: print
typeOfResource: text