Design and Optimization of Elliptical Cavity Tube Receivers in the Parabolic Trough Solar Collector

The nonfragile cavity receiver is of high significance to the solar parabolic trough collector (PTC). In the present study, light distributions in the cavity under different tracking error angles and PTC configurations are analyzed. A new elliptical cavity geometry is proposed and analyzed. It is ob...

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Main Authors: Fei Cao, Lei Wang, Tianyu Zhu
Format: Article
Language:English
Published: Wiley 2017-01-01
Series:International Journal of Photoenergy
Online Access:http://dx.doi.org/10.1155/2017/1471594
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author Fei Cao
Lei Wang
Tianyu Zhu
author_facet Fei Cao
Lei Wang
Tianyu Zhu
author_sort Fei Cao
collection DOAJ
description The nonfragile cavity receiver is of high significance to the solar parabolic trough collector (PTC). In the present study, light distributions in the cavity under different tracking error angles and PTC configurations are analyzed. A new elliptical cavity geometry is proposed and analyzed. It is obtained from this study that light distribution on the tube receiver is asymmetrical when tracking error occurs. On increasing the tracking error angle, more lights are sheltered by the cavity outer surface. The PTC focal distance has negative correlation with the cavity open length, whereas the PTC concentration ratio has positive correlation with the cavity open length. Increasing the tracking error angle and increasing the PTC focal distance would both decrease the cavity blackness. Introducing a flat plate reflector at the elliptical cavity open inlet can largely increase the cavity darkness.
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institution Kabale University
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language English
publishDate 2017-01-01
publisher Wiley
record_format Article
series International Journal of Photoenergy
spelling doaj-art-b70eda9f9f6e417babe6adb4706c00b82025-02-03T07:23:52ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2017-01-01201710.1155/2017/14715941471594Design and Optimization of Elliptical Cavity Tube Receivers in the Parabolic Trough Solar CollectorFei Cao0Lei Wang1Tianyu Zhu2College of Mechanical and Electrical Engineering, Hohai University, Changzhou 213022, ChinaCollege of Mechanical and Electrical Engineering, Hohai University, Changzhou 213022, ChinaCollege of Mechanical and Electrical Engineering, Hohai University, Changzhou 213022, ChinaThe nonfragile cavity receiver is of high significance to the solar parabolic trough collector (PTC). In the present study, light distributions in the cavity under different tracking error angles and PTC configurations are analyzed. A new elliptical cavity geometry is proposed and analyzed. It is obtained from this study that light distribution on the tube receiver is asymmetrical when tracking error occurs. On increasing the tracking error angle, more lights are sheltered by the cavity outer surface. The PTC focal distance has negative correlation with the cavity open length, whereas the PTC concentration ratio has positive correlation with the cavity open length. Increasing the tracking error angle and increasing the PTC focal distance would both decrease the cavity blackness. Introducing a flat plate reflector at the elliptical cavity open inlet can largely increase the cavity darkness.http://dx.doi.org/10.1155/2017/1471594
spellingShingle Fei Cao
Lei Wang
Tianyu Zhu
Design and Optimization of Elliptical Cavity Tube Receivers in the Parabolic Trough Solar Collector
International Journal of Photoenergy
title Design and Optimization of Elliptical Cavity Tube Receivers in the Parabolic Trough Solar Collector
title_full Design and Optimization of Elliptical Cavity Tube Receivers in the Parabolic Trough Solar Collector
title_fullStr Design and Optimization of Elliptical Cavity Tube Receivers in the Parabolic Trough Solar Collector
title_full_unstemmed Design and Optimization of Elliptical Cavity Tube Receivers in the Parabolic Trough Solar Collector
title_short Design and Optimization of Elliptical Cavity Tube Receivers in the Parabolic Trough Solar Collector
title_sort design and optimization of elliptical cavity tube receivers in the parabolic trough solar collector
url http://dx.doi.org/10.1155/2017/1471594
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AT leiwang designandoptimizationofellipticalcavitytubereceiversintheparabolictroughsolarcollector
AT tianyuzhu designandoptimizationofellipticalcavitytubereceiversintheparabolictroughsolarcollector