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4-E (energy–exergy–environmental–economic) analyses of line-focusing stand-alone concentrating solar power plants

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  • K. Ravi Kumar
  • K.S. Reddy

Abstract

In this study, energy–exergy–environmental–economic (4-E) analyses of stand-alone line-focusing concentrating solar power plants are carried out for different plant capacities ranging from 1 to 50 MW e . Solar power plants based on concentrating power technologies are used to harness the solar radiation effectively. Among the solar power technologies, line-focusing concentrating systems such as linear Fresnel reflector (LFR) and parabolic trough collector (PTC) are simple in design and cost-effective with high dispatchability. The energy and exergy efficiencies of various components of the solar field and power block are determined. The overall energy and exergy efficiencies of 50-MW e LFR power plants are estimated as 12.17 and 17.21% and 23.16 and 32.76%, respectively, for the PTC power plant. The results show that a maximum energy loss occurs in the solar field and power block for LFR and PTC power plants respectively, and a maximum exergy loss occurs in the solar field for both power plants. The analyses of solar power plants have been carried out to estimate the environmental benefits; the results showed that a 1-MW e stand-alone line-focusing concentrating solar power plant can save 1813 tonnes of CO 2 , 12.52 tonnes of SO 2 , 6.23 tonnes of NO x and 0.98 tonnes of particulate matter annually compared with that of an Indian subcritical coal power plant. The levelized electricity cost for the LFR- and PTC-based stand-alone solar power plant varies from INR 14.77 to INR 10.19 and INR 14.7 to INR 8.48 for the plant capacities that vary from 1 to 50 MW e . Copyright , Oxford University Press.

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  • K. Ravi Kumar & K.S. Reddy, 2012. "4-E (energy–exergy–environmental–economic) analyses of line-focusing stand-alone concentrating solar power plants," International Journal of Low-Carbon Technologies, Oxford University Press, vol. 7(2), pages 82-96, January.
    • Handle: RePEc:oup:ijlctc:v:7:y:2012:i:2:p:82-96
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    File URL: http://hdl.handle.net/10.1093/ijlct/cts005
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    Cited by:

    1. Boukelia, T.E. & Arslan, O. & Bouraoui, A., 2021. "Thermodynamic performance assessment of a new solar tower-geothermal combined power plant compared to the conventional solar tower power plant," Energy, Elsevier, vol. 232(C).
    2. Boukelia, T.E. & Bouraoui, A. & Laouafi, A. & Djimli, S. & Kabar, Y., 2020. "3E (Energy-Exergy-Economic) comparative study of integrating wet and dry cooling systems in solar tower power plants," Energy, Elsevier, vol. 200(C).
    3. Boukelia, T.E. & Mecibah, M.S. & Kumar, B.N. & Reddy, K.S., 2015. "Investigation of solar parabolic trough power plants with and without integrated TES (thermal energy storage) and FBS (fuel backup system) using thermic oil and solar salt," Energy, Elsevier, vol. 88(C), pages 292-303.
    4. Nithyanandam, K. & Pitchumani, R., 2014. "Cost and performance analysis of concentrating solar power systems with integrated latent thermal energy storage," Energy, Elsevier, vol. 64(C), pages 793-810.
    5. Yadav, Deepak & Banerjee, Rangan, 2018. "A comparative life cycle energy and carbon emission analysis of the solar carbothermal and hydrometallurgy routes for zinc production," Applied Energy, Elsevier, vol. 229(C), pages 577-602.

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