Performance enhancement and emission control through adjustment of operating parameters of a biogas-biodiesel dual fuel diesel engine: An experimental and statistical study with biogas as a hydrogen carrier

Mohite A., Bora B. J., Sharma P., Sarıdemir S., Mallick D., S S., ...More

International Journal of Hydrogen Energy, vol.52, pp.752-764, 2024 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 52
  • Publication Date: 2024
  • Doi Number: 10.1016/j.ijhydene.2023.08.201
  • Journal Name: International Journal of Hydrogen Energy
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Artic & Antarctic Regions, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, Environment Index, INSPEC
  • Page Numbers: pp.752-764
  • Keywords: Biogas, Compression ratio, Dual fuel engine, Mahua biodiesel, Pilot fuel injection timing, Response surface methodology
  • Yıldız Technical University Affiliated: No


This study explores emissions regulation of a 3.5 kW single cylinder, direct injection, diesel engine fuelled with biogas and Mahua biodiesel. By varying the compression ratio from 17 to 18 with a step of 0.5, pilot fuel injection timing by 3° BTDC from 23° BTDC to 32° BTDC, and engine load from 20% to 100% with a step of 20%, the optimal operating conditions are determined using response surface methodology. At the optimum engine operating parameter settings of a 17.73 compression ratio, 26.71° BTDC pilot fuel injection timing, and 58.96% engine load, the optimum emissions are 42.89 ppm for NOx, 80.36 ppm for UHC, 4.23% Vol. for CO2, and 77.72 ppm for CO. Additionally, the study demonstrates a comparable brake thermal efficiency of 17.35% with 66.26% pilot fuel substitution, indicating biogas-biodiesel as a sustainable and renewable option for dual-fuel CI compression-ignition engines.