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Numerical Simulation of Combustion of Natural Gas Mixed with Hydrogen in Gas Boilers

Author

Listed:
  • Yue Xin

    (School of Petroleum Engineering, Yangtze University, Wuhan 430100, China)

  • Ke Wang

    (School of Petroleum Engineering, Yangtze University, Wuhan 430100, China)

  • Yindi Zhang

    (School of Petroleum Engineering, Yangtze University, Wuhan 430100, China
    Measurement Science and Standards, National Research Council Canada, Building M-9, 1200 Montreal Road, Ottawa, ON K1A OR6, Canada)

  • Fanjin Zeng

    (School of Petroleum Engineering, Yangtze University, Wuhan 430100, China)

  • Xiang He

    (School of Petroleum Engineering, Yangtze University, Wuhan 430100, China
    Tianyuan Holding Group Co., Ltd., Wuhan 430062, China)

  • Shadrack Adjei Takyi

    (School of Petroleum Engineering, Yangtze University, Wuhan 430100, China)

  • Paitoon Tontiwachwuthikul

    (Faculty of Engineering and Applied Science, Clean Energy Technologies Research Institute (CETRI), University of Regina, Regina, SK S4S 0A2, Canada)

Abstract

Hydrogen mixed natural gas for combustion can improve combustion characteristics and reduce carbon emission, which has important engineering application value. A casing swirl burner model is adopted to numerically simulate and research the natural gas hydrogen mixing technology for combustion in gas boilers in this paper. Under the condition of conventional air atmosphere and constant air excess coefficient, the six working conditions for hydrogen mixing proportion into natural gas are designed to explore the combustion characteristics and the laws of pollution emissions. The temperature distributions, composition, and emission of combustion flue gas under various working conditions are analyzed and compared. Further investigation is also conducted for the variation laws of NOx and soot generation. The results show that when the boiler heating power is constant, hydrogen mixing will increase the combustion temperature, accelerate the combustion rate, reduce flue gas and CO 2 emission, increase the generation of water vapor, and inhibit the generation of NOx and soot. Under the premise of meeting the fuel interchangeability, it is concluded that the optimal hydrogen mixing volume fraction of gas boilers is 24.7%.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:21:p:6883-:d:661011
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    References listed on IDEAS

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    1. Xin, Yue & Zhang, Yindi & Xue, Peng & Wang, Ke & Adu, Emmanuel & Tontiwachwuthikul, Paitoon, 2021. "The optimization and thermodynamic and economic estimation analysis for CO2 compression-liquefaction process of CCUS system using LNG cold energy," Energy, Elsevier, vol. 236(C).
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    Cited by:

    1. Georgios I. Tsoumalis & Zafeirios N. Bampos & Georgios V. Chatzis & Pandelis N. Biskas, 2022. "Overview of Natural Gas Boiler Optimization Technologies and Potential Applications on Gas Load Balancing Services," Energies, MDPI, vol. 15(22), pages 1-24, November.
    2. Gontzal Lopez-Ruiz & Joseba Castresana-Larrauri & Jesús María Blanco-Ilzarbe, 2022. "Thermodynamic Analysis of a Regenerative Brayton Cycle Using H 2 , CH 4 and H 2 /CH 4 Blends as Fuel," Energies, MDPI, vol. 15(4), pages 1-11, February.
    3. Vladislav Kovalnogov & Ruslan Fedorov & Vladimir Klyachkin & Dmitry Generalov & Yulia Kuvayskova & Sergey Busygin, 2022. "Applying the Random Forest Method to Improve Burner Efficiency," Mathematics, MDPI, vol. 10(12), pages 1-24, June.
    4. Julian Schwab & Markus Bernecker & Saskia Fischer & Bijan Seyed Sadjjadi & Martin Kober & Frank Rinderknecht & Tjark Siefkes, 2022. "Exergy Analysis of the Prevailing Residential Heating System and Derivation of Future CO 2 -Reduction Potential," Energies, MDPI, vol. 15(10), pages 1-13, May.
    5. Răzvan Calotă & Nicolae N. Antonescu & Dan-Paul Stănescu & Ilinca Năstase, 2022. "The Direct Effect of Enriching the Gaseous Combustible with 23% Hydrogen in Condensing Boilers’ Operation," Energies, MDPI, vol. 15(24), pages 1-12, December.

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