Usability of pre-mixed methane-hydrogen mixture in hermetic type combined power systems: An experimental and numerical evaluation in terms of emissions and energy efficiency

Ökten M., VARİYENLİ H. İ., KARYEYEN S.

International Journal of Hydrogen Energy, cilt.120, ss.225-237, 2025 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 120
  • Basım Tarihi: 2025
  • Doi Numarası: 10.1016/j.ijhydene.2025.03.325
  • Dergi Adı: International Journal of Hydrogen Energy
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Artic & Antarctic Regions, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, Environment Index, INSPEC
  • Sayfa Sayıları: ss.225-237
  • Anahtar Kelimeler: Combi, Combustion, Emission, Hydrogen, Natural gas
  • Manisa Celal Bayar Üniversitesi Adresli: Evet

Özet

This study evaluates the combustion performances and emission characteristics of methane-hydrogen blending fuels in a condensing type of hermetic boiler. Experimental tests and numerical simulations have been conducted to assess combustion behavior and hydrogen-assisted effects on them. Numerical simulations have been performed using a commercial computational fluid dynamics code. The results have shown that the combustion performance has improved by adding hydrogen to the natural gas. It is also concluded that a 96 % reduction in CO, a 25 % reduction in CO2, and a 46 % reduction in NOx emissions for a 60 % CH4-40 % H2 mixture has occurred. It is concluded that the findings have demonstrated the feasibility of hydrogen enrichment in residential systems without modifying the burner and the combustion chamber. Hydrogen's role in reducing carbon-derived pollutant emissions in residential energy applications can be emphasized regarding sustainable environmental energy policies and economic benefits.