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A Numerical Simulation Study on the Combustion of Natural Gas Mixed with Hydrogen in a Partially Premixed Gas Water Heater

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Listed:
  • Siqi Li

    (College of Petroleum Engineering, Liaoning Petrochemical University, Fushun 113001, China)

  • Xiaoling Li

    (College of Petroleum Engineering, Liaoning Petrochemical University, Fushun 113001, China)

  • Hanlin Jin

    (College of Petroleum Engineering, Liaoning Petrochemical University, Fushun 113001, China)

  • Yi Liu

    (College of Petroleum Engineering, Liaoning Petrochemical University, Fushun 113001, China)

  • Yuguo Wu

    (College of Petroleum Engineering, Liaoning Petrochemical University, Fushun 113001, China)

Abstract

To investigate the impact of blending natural gas with hydrogen on the combustion performance of partially premixed gas water heaters, a framelet-generated manifold (FGM) was employed for lower-order simulation of combustion processes. Coupled with the 30-step methane combustion mechanism simplified by GRI3.0, a three-dimensional computational fluid dynamics (CFD) simulation of the combustion chamber of a partially premixed gas water heater was carried out. A numerical simulation was performed to analyze the combustion process of a mixture including 0–40% natural gas and hydrogen in the combustion chamber of a partially premixed gas water heater. The results indicate that the appropriate hydrogen blending ratio for some premixed gas water heaters should be less than 20%. Furthermore, it was observed that after blending hydrogen, there was a significant increase in the combustion temperature of the water heater. Additionally, there was a slight increase in NOx.

Suggested Citation

  • Siqi Li & Xiaoling Li & Hanlin Jin & Yi Liu & Yuguo Wu, 2024. "A Numerical Simulation Study on the Combustion of Natural Gas Mixed with Hydrogen in a Partially Premixed Gas Water Heater," Energies, MDPI, vol. 17(16), pages 1-22, August.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:16:p:4069-:d:1457485
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    References listed on IDEAS

    as
    1. Yue Xin & Ke Wang & Yindi Zhang & Fanjin Zeng & Xiang He & Shadrack Adjei Takyi & Paitoon Tontiwachwuthikul, 2021. "Numerical Simulation of Combustion of Natural Gas Mixed with Hydrogen in Gas Boilers," Energies, MDPI, vol. 14(21), pages 1-15, October.
    2. de Vries, Harmen & Mokhov, Anatoli V. & Levinsky, Howard B., 2017. "The impact of natural gas/hydrogen mixtures on the performance of end-use equipment: Interchangeability analysis for domestic appliances," Applied Energy, Elsevier, vol. 208(C), pages 1007-1019.
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