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Experimental performance investigation of modified cavity receiver with fuzzy focal solar dish concentrator

Author

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  • Reddy, K.S.
  • Natarajan, Sendhil Kumar
  • Veershetty, G.

Abstract

In this paper, thermal performance analysis of 20 m2 prototype fuzzy focal solar dish collector is presented. The focal image characteristics of the solar dish are determined to propose the suitable design of absorber/receiver. First, theoretical thermal performance analysis of the fuzzy focal solar parabolic dish concentrator with modified cavity receiver is carried out for different operating conditions. Based on the theoretical performance analysis, the total heat loss (conduction, convection and radiation heat losses) from the modified cavity receiver is estimated. It is observed that the maximum theoretical efficiencies of solar dish collector are found to be as 79.2% for no wind conditions and 78.2% and 77.8% for side-on and head-on winds speed of 5 m/s respectively. Latter, real time analysis of parabolic dish collector with modified cavity receiver is carried out in terms of stagnation test, time constant test and daily performance test. From stagnation test, the overall heat loss coefficient is found to be 356 W/m2 K. The time constant test is carried out to determine the influence of sudden change in solar radiation at steady state conditions. The daily performance tests are conducted for different flow rates. It is found that the efficiency of the collector increases with the increase of volume flow rates. The average thermal efficiencies of the parabolic dish collector for the volume flow rate of 100 L/h and 250 L/h are found to be 69% and 74% for the average beam radiation (Ibn) of 532 W/m2 and 641 W/m2 respectively.

Suggested Citation

  • Reddy, K.S. & Natarajan, Sendhil Kumar & Veershetty, G., 2015. "Experimental performance investigation of modified cavity receiver with fuzzy focal solar dish concentrator," Renewable Energy, Elsevier, vol. 74(C), pages 148-157.
    • Handle: RePEc:eee:renene:v:74:y:2015:i:c:p:148-157
    DOI: 10.1016/j.renene.2014.07.058
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    References listed on IDEAS

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    1. Kaushika, N.D, 1993. "Viability aspects of paraboloidal dish solar collector systems," Renewable Energy, Elsevier, vol. 3(6), pages 787-793.
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    1. Garrido, Jorge & Aichmayer, Lukas & Abou-Taouk, Abdallah & Laumert, Björn, 2019. "Experimental and numerical performance analyses of Dish-Stirling cavity receivers: Radiative property study and design," Energy, Elsevier, vol. 169(C), pages 478-488.
    2. Loni, R. & Askari Asli-Ardeh, E. & Ghobadian, B. & Kasaeian, A.B. & Bellos, Evangelos, 2018. "Thermal performance comparison between Al2O3/oil and SiO2/oil nanofluids in cylindrical cavity receiver based on experimental study," Renewable Energy, Elsevier, vol. 129(PA), pages 652-665.
    3. Azzouzi, Djelloul & Boumeddane, Boussad & Abene, Abderahmane, 2017. "Experimental and analytical thermal analysis of cylindrical cavity receiver for solar dish," Renewable Energy, Elsevier, vol. 106(C), pages 111-121.
    4. Vengadesan, Elumalai & Gurusamy, Pathinettampadian & Senthil, Ramalingam, 2023. "Thermal performance analysis of flat surface solar receiver with square tubular fins for a parabolic dish collector," Renewable Energy, Elsevier, vol. 216(C).
    5. Loni, R. & Kasaeian, A.B. & Askari Asli-Ardeh, E. & Ghobadian, B., 2016. "Optimizing the efficiency of a solar receiver with tubular cylindrical cavity for a solar-powered organic Rankine cycle," Energy, Elsevier, vol. 112(C), pages 1259-1272.
    6. Loni, R. & Kasaeian, A.B. & Askari Asli-Ardeh, E. & Ghobadian, B. & Gorjian, Sh, 2018. "Experimental and numerical study on dish concentrator with cubical and cylindrical cavity receivers using thermal oil," Energy, Elsevier, vol. 154(C), pages 168-181.
    7. Kasaeian, Alibakhsh & Kouravand, Amir & Vaziri Rad, Mohammad Amin & Maniee, Siavash & Pourfayaz, Fathollah, 2021. "Cavity receivers in solar dish collectors: A geometric overview," Renewable Energy, Elsevier, vol. 169(C), pages 53-79.
    8. Indora, Sunil & Kandpal, Tara C., 2018. "Institutional cooking with solar energy: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 84(C), pages 131-154.
    9. Thirunavukkarasu, V. & Cheralathan, M., 2020. "An experimental study on energy and exergy performance of a spiral tube receiver for solar parabolic dish concentrator," Energy, Elsevier, vol. 192(C).
    10. Loni, Reyhaneh & Asli-Ardeh, E. Askari & Ghobadian, B. & Kasaeian, A.B. & Bellos, Evangelos, 2018. "Energy and exergy investigation of alumina/oil and silica/oil nanofluids in hemispherical cavity receiver: Experimental Study," Energy, Elsevier, vol. 164(C), pages 275-287.
    11. Erany D. G. Constantino & Senhorinha F. C. F. Teixeira & José C. F. Teixeira & Flavia V. Barbosa, 2022. "Innovative Solar Concentration Systems and Its Potential Application in Angola," Energies, MDPI, vol. 15(19), pages 1-28, September.
    12. Reddy, K.S. & Balaji, Shanmugapriya & Sundararajan, T., 2018. "Estimation of heat losses due to wind effects from linear parabolic secondary reflector –receiver of solar LFR module," Energy, Elsevier, vol. 150(C), pages 410-433.
    13. Venkatachalam, Thirunavukkarasu & Cheralathan, M., 2019. "Effect of aspect ratio on thermal performance of cavity receiver for solar parabolic dish concentrator: An experimental study," Renewable Energy, Elsevier, vol. 139(C), pages 573-581.
    14. 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.
    15. Li, Xueling & Li, Renfu & Chang, Huawei & Zeng, Lijian & Xi, Zhaojun & Li, Yichao, 2022. "Numerical simulation of a cavity receiver enhanced with transparent aerogel for parabolic dish solar power generation," Energy, Elsevier, vol. 246(C).
    16. Ji-Qiang Li & Jeong-Tae Kwon & Seon-Jun Jang, 2020. "The Power and Efficiency Analyses of the Cylindrical Cavity Receiver on the Solar Stirling Engine," Energies, MDPI, vol. 13(21), pages 1-17, November.

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