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A novel asymmetric compound parabolic collector under experimental and numerical investigation

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  • Korres, Dimitrios N.
  • Tzivanidis, Christos

Abstract

In this study a novel compound parabolic collector (CPC) with an asymmetric reflector and an evacuated U-pipe tubular receiver was examined numerically and experimentally. The thermal operation of the system was tested in a range of 22–70 °C inlet temperature in the city of Athens in Greece, using water as the working fluid. The collector was oriented towards the sun in each case, while the measurements where conducted for 10 min regarding each operating point. The data acquisition as regards the solar irradiation intensity, the inlet, the outlet and the ambient temperature was conducted every 30 s. The experimental results were also validated by developing a numerical model in SolidWorks Flow Simulation environment. Particularly, it was found that the numerical results diverge from the experimental one by 3% on average, with the maximum declination to take the value of 5.17%. By this simulation it was possible to estimate the temperature of the receiver and the convection regime at the interior of the U-pipe. The convective coefficient at the interior of the flow tube was also validated through a theoretical model. Last but not least, the collector was compared with three other designs taken from literature as regards the optical performance.

Suggested Citation

  • Korres, Dimitrios N. & Tzivanidis, Christos, 2022. "A novel asymmetric compound parabolic collector under experimental and numerical investigation," Renewable Energy, Elsevier, vol. 199(C), pages 1580-1592.
    • Handle: RePEc:eee:renene:v:199:y:2022:i:c:p:1580-1592
    DOI: 10.1016/j.renene.2022.08.030
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    References listed on IDEAS

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    1. Osório, T. & Horta, P. & Marchã, J. & Collares-Pereira, M., 2019. "One-Sun CPC-type solar collectors with evacuated tubular receivers," Renewable Energy, Elsevier, vol. 134(C), pages 247-257.
    2. Korres, D.N. & Tzivanidis, C., 2019. "Numerical investigation and optimization of an experimentally analyzed solar CPC," Energy, Elsevier, vol. 172(C), pages 57-67.
    3. Korres, Dimitrios N. & Tzivanidis, Christos & Koronaki, Irene P. & Nitsas, Michael T., 2019. "Experimental, numerical and analytical investigation of a U-type evacuated tube collectors' array," Renewable Energy, Elsevier, vol. 135(C), pages 218-231.
    4. Kessentini, Hamdi & Bouden, Chiheb, 2013. "Numerical and experimental study of an integrated solar collector with CPC reflectors," Renewable Energy, Elsevier, vol. 57(C), pages 577-586.
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    6. Korres, Dimitrios & Tzivanidis, Christos, 2018. "A new mini-CPC with a U-type evacuated tube under thermal and optical investigation," Renewable Energy, Elsevier, vol. 128(PB), pages 529-540.
    7. Li, Qiyuan & Zheng, Cheng & Shirazi, Ali & Bany Mousa, Osama & Moscia, Fabio & Scott, Jason A. & Taylor, Robert A., 2017. "Design and analysis of a medium-temperature, concentrated solar thermal collector for air-conditioning applications," Applied Energy, Elsevier, vol. 190(C), pages 1159-1173.
    8. Osório, T. & Horta, P. & Collares-Pereira, M., 2019. "Method for customized design of a quasi-stationary CPC-type solar collector to minimize the energy cost," Renewable Energy, Elsevier, vol. 133(C), pages 1086-1098.
    9. Martínez-Rodríguez, Guillermo & Fuentes-Silva, Amanda L. & Picón-Núñez, Martín, 2018. "Solar thermal networks operating with evacuated-tube collectors," Energy, Elsevier, vol. 146(C), pages 26-33.
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    1. Dimitrios N. Korres & Evangelos Bellos & Christos Tzivanidis, 2022. "Integration of a Linear Cavity Receiver in an Asymmetric Compound Parabolic Collector," Energies, MDPI, vol. 15(22), pages 1-19, November.
    2. Barthwal, Mohit & Rakshit, Dibakar, 2023. "A solar spectral splitting-based PVT collector with packed transparent tube receiver for co-generation of heat and electricity," Applied Energy, Elsevier, vol. 352(C).
    3. Dimitrios N. Korres & Theodoros Papingiotis & Irene Koronaki & Christos Tzivanidis, 2023. "Thermal and Optical Analyses of a Hybrid Solar Photovoltaic/Thermal (PV/T) Collector with Asymmetric Reflector: Numerical Modeling and Validation with Experimental Results," Sustainability, MDPI, vol. 15(13), pages 1-22, June.
    4. Riaz, Hamza & Ali, Muzaffar & Akhter, Javed & Sheikh, Nadeem Ahmed & Rashid, Muhammad & Usman, Muhammad, 2023. "Numerical and experimental investigations of an involute shaped solar compound parabolic collector with variable concentration ratio," Renewable Energy, Elsevier, vol. 216(C).

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