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Effect of simulated biogas on performance, combustion and emissions characteristics of a bio-diesel fueled diesel engine


  • Kalsi, Sunmeet Singh
  • Subramanian, K.A.


Experimental investigations were carried out on a single cylinder diesel engine under dual fuel mode (biodiesel-simulated biogas). The pongamia pinaata biodiesel (B100) was used as pilot fuel whereas biogas composition was simulated by blending of CO2 (30%, 40% and 50% by weight) in natural gas and was used as main fuel. Natural gas and CO2 were injected into the engine’s intake manifold using two gas injectors with individual control mechanism. The brake thermal efficiency (BTE) of the engine decreases with increase in CO2 content in natural gas. NOx and smoke emissions decreased significantly with the biogas-fueled engine whereas HC and CO emissions increased marginally. The combustion characteristics including heat release rate and cumulative heat release decreased with biogas. A notable point emerged from this study is the effect of CO2 in natural gas on the performance, combustion and emissions characteristics of the engine are less as compared to the effect of its energy share and load. It is well established through this study that the raw biogas could be used in a biodiesel-fueled diesel engine under dual fuel mode. However, increase in CO and HC emissions needs to be reduced using suitable techniques.

Suggested Citation

  • Kalsi, Sunmeet Singh & Subramanian, K.A., 2017. "Effect of simulated biogas on performance, combustion and emissions characteristics of a bio-diesel fueled diesel engine," Renewable Energy, Elsevier, vol. 106(C), pages 78-90.
  • Handle: RePEc:eee:renene:v:106:y:2017:i:c:p:78-90
    DOI: 10.1016/j.renene.2017.01.006

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    References listed on IDEAS

    1. Bora, Bhaskor J. & Saha, Ujjwal K., 2015. "Comparative assessment of a biogas run dual fuel diesel engine with rice bran oil methyl ester, pongamia oil methyl ester and palm oil methyl ester as pilot fuels," Renewable Energy, Elsevier, vol. 81(C), pages 490-498.
    2. Asam, Zaki-ul-Zaman & Poulsen, Tjalfe Gorm & Nizami, Abdul-Sattar & Rafique, Rashad & Kiely, Ger & Murphy, Jerry D., 2011. "How can we improve biomethane production per unit of feedstock in biogas plants?," Applied Energy, Elsevier, vol. 88(6), pages 2013-2018, June.
    3. Bari, Saiful, 1996. "Effect of carbon dioxide on the performance of biogas/diesel duel-fuel engine," Renewable Energy, Elsevier, vol. 9(1), pages 1007-1010.
    4. Lounici, Mohand Said & Loubar, Khaled & Tarabet, Lyes & Balistrou, Mourad & Niculescu, Dan-Catalin & Tazerout, Mohand, 2014. "Towards improvement of natural gas-diesel dual fuel mode: An experimental investigation on performance and exhaust emissions," Energy, Elsevier, vol. 64(C), pages 200-211.
    5. Chintala, Venkateswarlu & Subramanian, K.A., 2013. "A CFD (computational fluid dynamics) study for optimization of gas injector orientation for performance improvement of a dual-fuel diesel engine," Energy, Elsevier, vol. 57(C), pages 709-721.
    6. Chandra, R. & Vijay, V.K. & Subbarao, P.M.V. & Khura, T.K., 2012. "Production of methane from anaerobic digestion of jatropha and pongamia oil cakes," Applied Energy, Elsevier, vol. 93(C), pages 148-159.
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