Thermo-Economic Performance Evaluation of a Conical Solar Concentrating System Using Coil-Based Absorber

Haedr Abdalha Mahmood Alsalame, Muhammad Imtiaz Hussain, Waseem Amjad, Asma Ali and Gwi Hyun Lee
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Haedr Abdalha Mahmood Alsalame: Department of Interdisciplinary Program in Smart Agriculture, Kangwon National University, Chuncheon 24341, Korea
Muhammad Imtiaz Hussain: Agriculture and Life Sciences Research Institute, Kangwon National University, Chuncheon 24341, Korea
Waseem Amjad: Department of Energy Systems Engineering, University of Agriculture, Faisalabad 38000, Pakistan
Asma Ali: Department of Agricultural and Resource Economics, Kangwon National University, Chuncheon 24341, Korea
Gwi Hyun Lee: Department of Interdisciplinary Program in Smart Agriculture, Kangwon National University, Chuncheon 24341, Korea

Energies, 2022, vol. 15, issue 9, 1-12

Abstract: Pollution and the increase in greenhouse gas (GHG) emissions have long been linked to the world’s increasing need for fossil fuels to generate energy. Every day, the energy consumption is increasing; therefore, it is important to improve technologies that use renewable energy sources. With the abundant availability of sustainable energy, solar power is becoming a necessity. However, solar energy has a low energy density and therefore requires a large installation area, which requires heat collection and heat storage technology. Much research is now being done on the conical solar systems to improve efficiency including calculating an optimal cone angle, finding the best flow ratio and the best absorber design, etc. Therefore, in this study, thermal performance of a conical solar collector (CSC) was assessed with a new design of concentric tube absorber (addition of a coil) and compared to the existing circular tube absorber. It was found that 6 L/min flow rate of heating medium (distilled water and CuO nanofluid) gave lower payback period and higher solar fraction of the system in both cases of absorber tube, i.e., without coil and with coil. However, comparatively, thermal efficiency of CSC with coil-based absorber was almost 10–12% higher than conventional system (without coil) regardless of type of heating medium used.

Keywords: collecting efficiency; conical solar concentrator; performance analysis; solar energy (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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