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A Convenient Method for the Accurate Calculation of Fin Efficiency of H-Type Fins Based on Linear Nomograms and Fitting Formulae

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  • Yongshi Feng

    (Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China)

  • Xin Wu

    (Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China)

  • Cai Liang

    (Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China)

  • Zhongping Sun

    (Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China)

Abstract

Fin efficiency, as a measure of the effectiveness of the heat transfer enhancement, is of great importance in studying the heat transfer performance of H-type finned tube banks. The fin efficiency of square fins is adopted by most researchers as an alternative to that of H-type fins, which can create certain errors in the fin efficiency of H-type fins. For this paper, the linear nomograms and fitting formulae of fin efficiency of H-type fins are obtained by the definition method of fin efficiency based on numerous numerical simulations, and the results calculated by this method are verified by experimental data. On this basis, the effects of three geometric parameters (slit width, fin height, and fin thickness) and two thermal parameters (surface heat transfer coefficient and fin thermal conductivity) on the fin efficiency of H-type fins are also investigated and compared to those of square fins. The results indicate that the fin efficiency of H-type fins increases with the increment of fin thickness and thermal conductivity, and decreases with the increase of slit width, fin height, and surface heat transfer coefficient. Accordingly, the linear nomograms and fitting formulae for the fin efficiency of H-type fins, which are well compatible with experimental data, can help to facilitate further theoretical research and engineering application.

Suggested Citation

  • Yongshi Feng & Xin Wu & Cai Liang & Zhongping Sun, 2022. "A Convenient Method for the Accurate Calculation of Fin Efficiency of H-Type Fins Based on Linear Nomograms and Fitting Formulae," Energies, MDPI, vol. 15(2), pages 1-14, January.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:2:p:456-:d:721178
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    References listed on IDEAS

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    1. Mashhour A. Alazwari & Mohammad Reza Safaei, 2021. "Non-Isothermal Hydrodynamic Characteristics of a Nanofluid in a Fin-Attached Rotating Tube Bundle," Mathematics, MDPI, vol. 9(10), pages 1-24, May.
    2. Xinguo Sun & Jasim M. Mahdi & Hayder I. Mohammed & Hasan Sh. Majdi & Wang Zixiong & Pouyan Talebizadehsardari, 2021. "Solidification Enhancement in a Triple-Tube Latent Heat Energy Storage System Using Twisted Fins," Energies, MDPI, vol. 14(21), pages 1-23, November.
    3. Borunda, Mónica & Garduno-Ramirez, Raul & Jaramillo, O.A., 2019. "Optimal operation of a parabolic solar collector with twisted-tape insert by multi-objective genetic algorithms," Renewable Energy, Elsevier, vol. 143(C), pages 540-550.
    4. Sung-Hoon Seol & Sun-Geun Lee & Chang-Hyo Son & Ji-Hoon Yoon & In-Seob Eom & Young-Min Park & Jung-In Yoon, 2021. "Effects of Experimental Parameters on Condensation Heat Transfer in Plate Fin Heat Exchanger," Energies, MDPI, vol. 14(22), pages 1-18, November.
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    1. Huang, Shengyao & Lv, Laiquan & Rong, Yan & Zhou, Hao, 2024. "Experimental study on the thermal characteristics of a visualized shell-and-tube LHTES system at different endothermic and exothermic temperatures," Renewable Energy, Elsevier, vol. 221(C).

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