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Integration of a Linear Cavity Receiver in an Asymmetric Compound Parabolic Collector

Author

Listed:
  • Dimitrios N. Korres

    (Department of Thermal Engineering, National Technical University of Athens, Zografou, 157 80 Athens, Greece)

  • Evangelos Bellos

    (Department of Thermal Engineering, National Technical University of Athens, Zografou, 157 80 Athens, Greece
    Department of Mechanical Engineering Educators, School of Pedagogical and Technological Education (ASPETE), 151 22 Amarousion, Greece)

  • Christos Tzivanidis

    (Department of Thermal Engineering, National Technical University of Athens, Zografou, 157 80 Athens, Greece)

Abstract

The objective of this work is the integration of a linear cavity receiver in an asymmetric compound parabolic collector. Two different numerical models were developed; one for the conventional geometry and one for the cavity configuration. Both models were examined for inlet temperatures from 20 °C up to 80 °C, considering water as the operating fluid with a typical volume flow rate of 15 lt/h. Emphasis was given to the comparison of the thermal and optical performance between the designs, as well as in the temperature levels of the fluids and the receiver. The geometry of the integrated cavity receiver was optimized according to two independent parameters and two possible optimum designs were finally revealed. The optimization took place regarding the optical performance of the collector with the cavity receiver. The simulation results indicated that the cavity design leads to enhancements of up to 4.40% and 4.00% in the optical and thermal efficiency respectively, while the minimum possible enhancement was above 2.20%. The mean enhancements in optical and thermal performance were found to be 2.90% and 2.92% respectively. Moreover, an analytical solution was developed for verifying the numerical results and the maximum deviations were found to be less than 5% in all the compared parameters. Especially, in thermal efficiency verification, the maximum deviation took a value of less than 0.5%. The design and the simulations in the present study were conducted with the SolidWorks Flow Simulation tool.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:22:p:8635-:d:975994
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    References listed on IDEAS

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    1. Korres, D.N. & Tzivanidis, C., 2019. "Numerical investigation and optimization of an experimentally analyzed solar CPC," Energy, Elsevier, vol. 172(C), pages 57-67.
    2. Said, Zafar & Arora, Sahil & Bellos, Evangelos, 2018. "A review on performance and environmental effects of conventional and nanofluid-based thermal photovoltaics," Renewable and Sustainable Energy Reviews, Elsevier, vol. 94(C), pages 302-316.
    3. Liang, Hongbo & Fan, Man & You, Shijun & Xia, Junbao & Zhang, Huan & Wang, Yaran, 2018. "An analysis of the heat loss and overheating protection of a cavity receiver with a novel movable cover for parabolic trough solar collectors," Energy, Elsevier, vol. 158(C), pages 719-729.
    4. Jamal-Abad, Milad Tajik & Saedodin, Seyfollah & Aminy, Mohammad, 2017. "Experimental investigation on a solar parabolic trough collector for absorber tube filled with porous media," Renewable Energy, Elsevier, vol. 107(C), pages 156-163.
    5. Zhu, Xiaowei & Zhu, Lei & Zhao, Jingquan, 2017. "Wavy-tape insert designed for managing highly concentrated solar energy on absorber tube of parabolic trough receiver," Energy, Elsevier, vol. 141(C), pages 1146-1155.
    6. Bellos, Evangelos & Tzivanidis, Christos, 2018. "Investigation of a star flow insert in a parabolic trough solar collector," Applied Energy, Elsevier, vol. 224(C), pages 86-102.
    7. Al-Nimr, M.A. & Al-Darawsheh, I.A. & AL-Khalayleh, L.A., 2018. "A novel hybrid cavity solar thermal collector," Renewable Energy, Elsevier, vol. 115(C), pages 299-307.
    8. 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.
    9. Madadi Avargani, Vahid & Norton, Brian & Rahimi, Amir, 2021. "An open-aperture partially-evacuated receiver for more uniform reflected solar flux in circular-trough reflectors: Comparative performance in air heating applications," Renewable Energy, Elsevier, vol. 176(C), pages 11-24.
    10. Bellos, E. & Tzivanidis, C. & Antonopoulos, K.A. & Gkinis, G., 2016. "Thermal enhancement of solar parabolic trough collectors by using nanofluids and converging-diverging absorber tube," Renewable Energy, Elsevier, vol. 94(C), pages 213-222.
    11. Zhang, Li & Fang, Jiabin & Wei, Jinjia & Yang, Guidong, 2017. "Numerical investigation on the thermal performance of molten salt cavity receivers with different structures," Applied Energy, Elsevier, vol. 204(C), pages 966-978.
    12. 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.
    13. Rehan, Mirza Abdullah & Ali, Muzaffar & Sheikh, Nadeem Ahmed & Khalil, M. Shahid & Chaudhary, Ghulam Qadar & Rashid, Tanzeel ur & Shehryar, M., 2018. "Experimental performance analysis of low concentration ratio solar parabolic trough collectors with nanofluids in winter conditions," Renewable Energy, Elsevier, vol. 118(C), pages 742-751.
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    Cited by:

    1. Evangelos Bellos & Dimitrios N. Korres & Christos Tzivanidis, 2023. "Investigation of a Compound Parabolic Collector with a Flat Glazing," Sustainability, MDPI, vol. 15(5), pages 1-17, February.
    2. 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.

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