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Numerical prediction of entropy generation due to natural convection from a horizontal cylinder

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  • Abu-Hijleh, B.A/K
  • Abu-Qudais, M
  • Abu Nada, E

Abstract

Entropy generation due to natural convection has been calculated for three radii and a wide range of Rayleigh numbers for an isothermal cylinder. It was predominantly caused by conduction. The viscous contribution was negligible. Locations of high local entropy generation were identified for different configurations. The total entropy generation decreased with increasing cylinder size for a given value of the Rayleigh number.

Suggested Citation

  • Abu-Hijleh, B.A/K & Abu-Qudais, M & Abu Nada, E, 1999. "Numerical prediction of entropy generation due to natural convection from a horizontal cylinder," Energy, Elsevier, vol. 24(4), pages 327-333.
    • Handle: RePEc:eee:energy:v:24:y:1999:i:4:p:327-333
    DOI: 10.1016/S0360-5442(98)00103-0
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    Cited by:

    1. Kan, Kan & Xu, Zhe & Chen, Huixiang & Xu, Hui & Zheng, Yuan & Zhou, Daqing & Muhirwa, Alexis & Maxime, Binama, 2022. "Energy loss mechanisms of transition from pump mode to turbine mode of an axial-flow pump under bidirectional conditions," Energy, Elsevier, vol. 257(C).
    2. Basak, Tanmay & Anandalakshmi, R. & Kumar, Pushpendra & Roy, S., 2012. "Entropy generation vs energy flow due to natural convection in a trapezoidal cavity with isothermal and non-isothermal hot bottom wall," Energy, Elsevier, vol. 37(1), pages 514-532.
    3. Biswal, Pratibha & Basak, Tanmay, 2017. "Entropy generation vs energy efficiency for natural convection based energy flow in enclosures and various applications: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 80(C), pages 1412-1457.
    4. Liu, Di & Zhao, Fu-Yun & Wang, Han-Qing, 2011. "Passive heat and moisture removal from a natural vented enclosure with a massive wall," Energy, Elsevier, vol. 36(5), pages 2867-2882.
    5. Lior, Noam & Sarmiento-Darkin, Wladimir & Al-Sharqawi, Hassan S., 2006. "The exergy fields in transport processes: Their calculation and use," Energy, Elsevier, vol. 31(5), pages 553-578.
    6. Kaluri, Ram Satish & Basak, Tanmay, 2010. "Analysis of distributed thermal management policy for energy-efficient processing of materials by natural convection," Energy, Elsevier, vol. 35(12), pages 5093-5107.
    7. Akbar, Noreen Sher, 2015. "Entropy generation and energy conversion rate for the peristaltic flow in a tube with magnetic field," Energy, Elsevier, vol. 82(C), pages 23-30.
    8. Ranjit, N.K. & Shit, G.C., 2017. "Entropy generation on electro-osmotic flow pumping by a uniform peristaltic wave under magnetic environment," Energy, Elsevier, vol. 128(C), pages 649-660.
    9. Xu, Zhe & Zheng, Yuan & Kan, Kan & Chen, Huixiang, 2023. "Flow instability and energy performance of a coastal axial-flow pump as turbine under the influence of upstream waves," Energy, Elsevier, vol. 272(C).
    10. Anandalakshmi, R. & Kaluri, Ram Satish & Basak, Tanmay, 2011. "Heatline based thermal management for natural convection within right-angled porous triangular enclosures with various thermal conditions of walls," Energy, Elsevier, vol. 36(8), pages 4879-4896.
    11. Abdulwahed Muaybid A. Alrashdi, 2023. "Peristalsis of Nanofluids via an Inclined Asymmetric Channel with Hall Effects and Entropy Generation Analysis," Mathematics, MDPI, vol. 11(2), pages 1-29, January.

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