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Hydrothermal analysis for a parabolic solar unit with wavy absorber pipe and nanofluid

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  • Sheikholeslami, M.
  • Said, Zafar
  • Jafaryar, M.

Abstract

Parabolic system is regarded as a highly advanced solar technology. In this regard, the numerical simulation for thermal analysis of PTC with a wavy absorber pipe employing finite volume method was presented. The new wavy absorber tube within a solar system involving parabolic reflector has been investigated in the current article. Two phase model for a mixture of oil and CuO nanoparticles were applied. To find the amount of received heat to absorber, SolTrace were implemented. Turbulent flow has been simulated via k-ϵ approach. Pitch number (P), Re, and fraction of nano-powder (φ) have been examined. CuO/Oil was utilized as a working fluid. Contours of temperature, velocity, volume concentration, and exergy loss were presented. Increment in Re number from 5000 to 20,000 resulted in the reduction of friction factor by 28.96%, the heat transfer coefficient is improved by 180.13%, when φ=0.01, P=(0.4). As volume concentration elevates, friction factor, h, and outlet temperature were increased by 2.79%, 9.06%, and 0.56%, respectively. With the increment of P from 0 to 0.4, the f is increased by 57.33%, h is enhanced by 17.01% when φ=0.01, Re = 2e4.

Suggested Citation

  • Sheikholeslami, M. & Said, Zafar & Jafaryar, M., 2022. "Hydrothermal analysis for a parabolic solar unit with wavy absorber pipe and nanofluid," Renewable Energy, Elsevier, vol. 188(C), pages 922-932.
  • Handle: RePEc:eee:renene:v:188:y:2022:i:c:p:922-932
    DOI: 10.1016/j.renene.2022.02.086
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    References listed on IDEAS

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    1. Wang, Yuan & Ren, Jing-Jie & Bi, Ming-Shu, 2023. "Analysis on the heat transfer performance of supercritical liquified natural gas in horizontal tubes during regasification process," Energy, Elsevier, vol. 262(PA).

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