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Numerical and experimental investigation on heat transfer enhancement by adding fins on the pot in a domestic gas stove

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  • Wang, Jianyou
  • Zhang, Wei
  • Yang, Tao
  • Yu, Yunzu
  • Liu, Chuang
  • Li, Bin

Abstract

Heat transfer and premixed combustion are two working processes of domestic gas stoves, and poor heat transfer is the primary cause of low thermal efficiency. The investigation aims to strengthen the heat transfer capacity of the pot numerically and experimentally, thus improving the thermal efficiency of gas stoves and saving energy. With the increase in loading height Z, the thermal efficiency predicted by numerical simulation decreases gradually in agreement with the experimental results. After adding fins to the pot wall, it is found that the thermal efficiency increases with an increase in fin height H. The fin height H = 8 mm is used because of the better compromise between thermal efficiency and the max temperature of fins. By considering the total mass of the pot and thermal efficiency, we select the fin number N = 42, and its thermal efficiency is increased by 7.12% compared with the original pot. Experimental results confirm that the increase is 8.2% under the same conditions. Moreover, it is shown that the thermal efficiency at first increases to a maximum value then decreases with the augment of inclination angle. The optimal angle occurs at α = 30°, and its thermal efficiency is 9.48% higher than that of the original pot.

Suggested Citation

  • Wang, Jianyou & Zhang, Wei & Yang, Tao & Yu, Yunzu & Liu, Chuang & Li, Bin, 2022. "Numerical and experimental investigation on heat transfer enhancement by adding fins on the pot in a domestic gas stove," Energy, Elsevier, vol. 239(PE).
    • Handle: RePEc:eee:energy:v:239:y:2022:i:pe:s0360544221026888
    DOI: 10.1016/j.energy.2021.122439
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    References listed on IDEAS

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    Cited by:

    1. Mulako D. Mukelabai & K. G. U. Wijayantha & Richard E. Blanchard, 2022. "Hydrogen for Cooking: A Review of Cooking Technologies, Renewable Hydrogen Systems and Techno-Economics," Sustainability, MDPI, vol. 14(24), pages 1-30, December.
    2. Deymi-Dashtebayaz, Mahdi & Rezapour, Mojtaba & Sheikhani, Hamideh & Afshoun, Hamid Reza & Barzanooni, Vahid, 2023. "Numerical and experimental analyses of a novel natural gas cooking burner with the aim of improving energy efficiency and reducing environmental pollution," Energy, Elsevier, vol. 263(PE).

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