Simulation and experimental validation of solar radiation distribution on the absorber of a line-axis asymmetric compound parabolic concentrator

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Abstract

This paper reports the development and application of a new practical photovoltaic (PV) cells based device to measure the solar radiation flux produced by non-imaging Compound Parabolic Concentrators (CPCs) on cylindrical absorbers. The flexible experimental device comprises 12 discrete miniature PV panels that measure solar radiation on the surface of a cylindrical absorber. The device has been used to evaluate the performance of an asymmetric CPC system and results validated with a computer-based Ray Tracing Model. The study attained significant agreement between outdoor results of the experimental device and results of the ray tracing simulation with a difference of <9 % in optical efficiencies. The non-imaging reflector illuminates a targeted section of the absorber of a horizontal east-west thermal diode Integrated Collector Storage Solar Water Heater. During outdoor testing, the experiments indicated a local concentration ratio reaching 1.4 suns on the targeted section of the absorber vessel surface for incidence angles -30°≤θ_i≤30°, confirming technical suitability of the asymmetric CPC for deployment in locations at equatorial latitudes.
LanguageEnglish
Pages36-52
Number of pages17
JournalSolar Energy
Volume198
Early online date23 Jan 2020
DOIs
Publication statusE-pub ahead of print - 23 Jan 2020

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Ray tracing
Solar radiation
Solar water heaters
Photovoltaic cells
Diodes
Fluxes
Testing
Experiments
Hot Temperature

Keywords

  • Solar cogeneration
  • Flux distribution
  • CPC
  • optical efficiency
  • PV cells
  • ray tracing

Cite this

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title = "Simulation and experimental validation of solar radiation distribution on the absorber of a line-axis asymmetric compound parabolic concentrator",
abstract = "This paper reports the development and application of a new practical photovoltaic (PV) cells based device to measure the solar radiation flux produced by non-imaging Compound Parabolic Concentrators (CPCs) on cylindrical absorbers. The flexible experimental device comprises 12 discrete miniature PV panels that measure solar radiation on the surface of a cylindrical absorber. The device has been used to evaluate the performance of an asymmetric CPC system and results validated with a computer-based Ray Tracing Model. The study attained significant agreement between outdoor results of the experimental device and results of the ray tracing simulation with a difference of <9 {\%} in optical efficiencies. The non-imaging reflector illuminates a targeted section of the absorber of a horizontal east-west thermal diode Integrated Collector Storage Solar Water Heater. During outdoor testing, the experiments indicated a local concentration ratio reaching 1.4 suns on the targeted section of the absorber vessel surface for incidence angles -30°≤θ_i≤30°, confirming technical suitability of the asymmetric CPC for deployment in locations at equatorial latitudes.",
keywords = "Solar cogeneration, Flux distribution, CPC, optical efficiency, PV cells, ray tracing",
author = "Ronald Muhumuza and A Zacharopoulos and Jayanta Mondol and Mervyn Smyth and Adrian Pugsley and Jade McGee",
note = "Muhumuza, R., Zacharopoulos, A., Deb, J., Smyth, M., Pugsley, A., Mcgee, J., 2020. Simulation and experimental validation of solar radiation distribution on the absorber of a line-axis asymmetric compound parabolic concentrator. Sol. Energy 198, 36–52. https://doi.org/10.1016/j.solener.2020.01.033",
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AU - Muhumuza, Ronald

AU - Zacharopoulos, A

AU - Mondol, Jayanta

AU - Smyth, Mervyn

AU - Pugsley, Adrian

AU - McGee, Jade

N1 - Muhumuza, R., Zacharopoulos, A., Deb, J., Smyth, M., Pugsley, A., Mcgee, J., 2020. Simulation and experimental validation of solar radiation distribution on the absorber of a line-axis asymmetric compound parabolic concentrator. Sol. Energy 198, 36–52. https://doi.org/10.1016/j.solener.2020.01.033

PY - 2020/1/23

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N2 - This paper reports the development and application of a new practical photovoltaic (PV) cells based device to measure the solar radiation flux produced by non-imaging Compound Parabolic Concentrators (CPCs) on cylindrical absorbers. The flexible experimental device comprises 12 discrete miniature PV panels that measure solar radiation on the surface of a cylindrical absorber. The device has been used to evaluate the performance of an asymmetric CPC system and results validated with a computer-based Ray Tracing Model. The study attained significant agreement between outdoor results of the experimental device and results of the ray tracing simulation with a difference of <9 % in optical efficiencies. The non-imaging reflector illuminates a targeted section of the absorber of a horizontal east-west thermal diode Integrated Collector Storage Solar Water Heater. During outdoor testing, the experiments indicated a local concentration ratio reaching 1.4 suns on the targeted section of the absorber vessel surface for incidence angles -30°≤θ_i≤30°, confirming technical suitability of the asymmetric CPC for deployment in locations at equatorial latitudes.

AB - This paper reports the development and application of a new practical photovoltaic (PV) cells based device to measure the solar radiation flux produced by non-imaging Compound Parabolic Concentrators (CPCs) on cylindrical absorbers. The flexible experimental device comprises 12 discrete miniature PV panels that measure solar radiation on the surface of a cylindrical absorber. The device has been used to evaluate the performance of an asymmetric CPC system and results validated with a computer-based Ray Tracing Model. The study attained significant agreement between outdoor results of the experimental device and results of the ray tracing simulation with a difference of <9 % in optical efficiencies. The non-imaging reflector illuminates a targeted section of the absorber of a horizontal east-west thermal diode Integrated Collector Storage Solar Water Heater. During outdoor testing, the experiments indicated a local concentration ratio reaching 1.4 suns on the targeted section of the absorber vessel surface for incidence angles -30°≤θ_i≤30°, confirming technical suitability of the asymmetric CPC for deployment in locations at equatorial latitudes.

KW - Solar cogeneration

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