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Determination of the optimal operation mode of a flat solar collector by exergetic analysis and numerical simulation

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  • Luminosu, I.
  • Fara, L.

Abstract

It is common knowledge that the solar-thermal energy efficiency increases without extremum points with the flow rate, and similarly the fluid outlet temperature increases with the collecting area. The absence of maximum points for the functions ηen=f(m˙) and Tf,o=f(AC) has created difficulties in the design of flat solar collectors. The exergy efficiency of a flat-plate solar collector, ηex=f(m˙,AC) presents points of local maxima and a point of global maximum. In order to eliminate the drawbacks arising from the random variation of Tf,i, the paper proposes an exergy analysis of a flat-plate solar collector based on the assumption that Tf,i=Te=const. (Te—environment temperature). The method has proven valuable in the design of solar collectors for the specific climatic and insulation conditions of a certain region.

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  • Luminosu, I. & Fara, L., 2005. "Determination of the optimal operation mode of a flat solar collector by exergetic analysis and numerical simulation," Energy, Elsevier, vol. 30(5), pages 731-747.
    • Handle: RePEc:eee:energy:v:30:y:2005:i:5:p:731-747
    DOI: 10.1016/j.energy.2004.04.061
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    1. Torres R, E & Picon Nuñez, M & Cervantes de G, J, 1998. "Exergy analysis and optimization of a solar-assisted heat pump," Energy, Elsevier, vol. 23(4), pages 337-344.
    2. Torres-Reyes, E. & Navarrete-Gonzalez, J.J. & Ibarra-Salazar, B.A., 2002. "Thermodynamic method for designing dryers operated by flat-plate solar collectors," Renewable Energy, Elsevier, vol. 26(4), pages 649-660.
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    Cited by:

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    2. R. M. Mostafizur & M. G. Rasul & M. N. Nabi, 2021. "Energy and Exergy Analyses of a Flat Plate Solar Collector Using Various Nanofluids: An Analytical Approach," Energies, MDPI, vol. 14(14), pages 1-19, July.
    3. Zuhair Qamar & Anjum Munir & Timothy Langrish & Abdul Ghafoor & Muhammad Tahir, 2023. "Experimental and Numerical Simulations of a Solar Air Heater for Maximal Value Addition to Agricultural Products," Agriculture, MDPI, vol. 13(2), pages 1-17, February.
    4. Mehrpooya, Mehdi & Moftakhari Sharifzadeh, Mohammad Mehdi & Rosen, Marc A., 2016. "Energy and exergy analyses of a novel power cycle using the cold of LNG (liquefied natural gas) and low-temperature solar energy," Energy, Elsevier, vol. 95(C), pages 324-345.
    5. Panwar, N.L. & Kaushik, S.C. & Kothari, Surendra, 2012. "A review on energy and exergy analysis of solar dying systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 16(5), pages 2812-2819.
    6. Seyed Reza Shamshirgaran & Hussain H. Al-Kayiem & Korada V. Sharma & Mostafa Ghasemi, 2020. "State of the Art of Techno-Economics of Nanofluid-Laden Flat-Plate Solar Collectors for Sustainable Accomplishment," Sustainability, MDPI, vol. 12(21), pages 1-52, November.
    7. Verma, Sujit Kumar & Sharma, Kamal & Gupta, Naveen Kumar & Soni, Pawan & Upadhyay, Neeraj, 2020. "“Performance comparison of innovative spiral shaped solar collector design with conventional flat plate solar collector”," Energy, Elsevier, vol. 194(C).
    8. Cruz-Peragon, F. & Palomar, J.M. & Casanova, P.J. & Dorado, M.P. & Manzano-Agugliaro, F., 2012. "Characterization of solar flat plate collectors," Renewable and Sustainable Energy Reviews, Elsevier, vol. 16(3), pages 1709-1720.
    9. Torío, H. & Schmidt, D., 2010. "Framework for analysis of solar energy systems in the built environment from an exergy perspective," Renewable Energy, Elsevier, vol. 35(12), pages 2689-2697.
    10. Gunjo, Dawit Gudeta & Mahanta, Pinakeswar & Robi, Puthuveettil Sreedharan, 2017. "Exergy and energy analysis of a novel type solar collector under steady state condition: Experimental and CFD analysis," Renewable Energy, Elsevier, vol. 114(PB), pages 655-669.
    11. Alta, Deniz & Bilgili, Emin & Ertekin, C. & Yaldiz, Osman, 2010. "Experimental investigation of three different solar air heaters: Energy and exergy analyses," Applied Energy, Elsevier, vol. 87(10), pages 2953-2973, October.
    12. Gupta, M.K. & Kaushik, S.C., 2008. "Exergetic performance evaluation and parametric studies of solar air heater," Energy, Elsevier, vol. 33(11), pages 1691-1702.
    13. Murat Kunelbayev & Yedilkhan Amirgaliyev & Talgat Sundetov, 2022. "Improving the Efficiency of Environmental Temperature Control in Homes and Buildings," Energies, MDPI, vol. 15(23), pages 1-15, November.
    14. Wu, Shuang-Ying & Chen, Chen & Xiao, Lan, 2018. "Heat transfer characteristics and performance evaluation of water-cooled PV/T system with cooling channel above PV panel," Renewable Energy, Elsevier, vol. 125(C), pages 936-946.
    15. Farahat, S. & Sarhaddi, F. & Ajam, H., 2009. "Exergetic optimization of flat plate solar collectors," Renewable Energy, Elsevier, vol. 34(4), pages 1169-1174.
    16. Jafarkazemi, Farzad & Ahmadifard, Emad, 2013. "Energetic and exergetic evaluation of flat plate solar collectors," Renewable Energy, Elsevier, vol. 56(C), pages 55-63.
    17. Kumar, Rakesh & Rosen, Marc A., 2011. "A critical review of photovoltaic–thermal solar collectors for air heating," Applied Energy, Elsevier, vol. 88(11), pages 3603-3614.
    18. Park, S.R. & Pandey, A.K. & Tyagi, V.V. & Tyagi, S.K., 2014. "Energy and exergy analysis of typical renewable energy systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 30(C), pages 105-123.
    19. Muhammad, Mahmud Jamil & Muhammad, Isa Adamu & Sidik, Nor Azwadi Che & Yazid, Muhammad Noor Afiq Witri Muhammad & Mamat, Rizalman & Najafi, G., 2016. "The use of nanofluids for enhancing the thermal performance of stationary solar collectors: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 63(C), pages 226-236.
    20. Alvarez, A. & Cabeza, O. & Muñiz, M.C. & Varela, L.M., 2010. "Experimental and numerical investigation of a flat-plate solar collector," Energy, Elsevier, vol. 35(9), pages 3707-3716.

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