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Effect of advanced injection timing on emission characteristics of diesel engine running on natural gas

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  • Nwafor, O.M.I.

Abstract

There has been a growing concern on the emission of greenhouse gases into the atmosphere, whose consequence is global warming. The sources of greenhouse gases have been identified, of which the major contributor is the combustion of fossil fuel. Researchers have intensified efforts towards identifying greener alternative fuel substitutes for the present fossil fuel. Natural gas is now being investigated as potential alternative fuel for diesel engines. Natural gas appears more attractive due to its high octane number and perhaps, due to its environmental friendly nature. The test results showed that alternative fuels exhibit longer ignition delay, with slow burning rates. Longer delays will lead to unacceptable rates of pressure rise with the result of diesel knock. This work examines the effect of advanced injection timing on the emission characteristics of dual-fuel engine. The engine has standard injection timing of 30° BTDC. The injection was first advanced by 5.5° and given injection timing of 35.5° BTDC. The engine performance was erratic on this timing. The injection was then advanced by 3.5°. The engine performance was smooth on this timing especially at low loading conditions. The ignition delay was reduced through advanced injection timing but tended to incur a slight increase in fuel consumption. The CO and CO2 emissions were reduced through advanced injection timing.

Suggested Citation

  • Nwafor, O.M.I., 2007. "Effect of advanced injection timing on emission characteristics of diesel engine running on natural gas," Renewable Energy, Elsevier, vol. 32(14), pages 2361-2368.
    • Handle: RePEc:eee:renene:v:32:y:2007:i:14:p:2361-2368
    DOI: 10.1016/j.renene.2006.12.006
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    References listed on IDEAS

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    1. Nwafor, O.M.I. & Rice, G., 1994. "Combustion characteristics and performance of natural gas in high speed indirect injection diesel engine," Renewable Energy, Elsevier, vol. 5(5), pages 841-848.
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    Cited by:

    1. Md Arman Arefin & Md Nurun Nabi & Md Washim Akram & Mohammad Towhidul Islam & Md Wahid Chowdhury, 2020. "A Review on Liquefied Natural Gas as Fuels for Dual Fuel Engines: Opportunities, Challenges and Responses," Energies, MDPI, vol. 13(22), pages 1-19, November.
    2. Venu, Harish & Raju, V. Dhana & Subramani, Lingesan, 2019. "Combined effect of influence of nano additives, combustion chamber geometry and injection timing in a DI diesel engine fuelled with ternary (diesel-biodiesel-ethanol) blends," Energy, Elsevier, vol. 174(C), pages 386-406.
    3. Barik, Debabrata & Murugan, S. & Sivaram, N.M. & Baburaj, E. & Shanmuga Sundaram, P., 2017. "Experimental investigation on the behavior of a direct injection diesel engine fueled with Karanja methyl ester-biogas dual fuel at different injection timings," Energy, Elsevier, vol. 118(C), pages 127-138.
    4. Cheenkachorn, Kraipat & Poompipatpong, Chedthawut & Ho, Choi Gyeung, 2013. "Performance and emissions of a heavy-duty diesel engine fuelled with diesel and LNG (liquid natural gas)," Energy, Elsevier, vol. 53(C), pages 52-57.
    5. Alagumalai, Avinash, 2014. "Internal combustion engines: Progress and prospects," Renewable and Sustainable Energy Reviews, Elsevier, vol. 38(C), pages 561-571.
    6. Salman Abdu Ahmed & Song Zhou & Yuanqing Zhu & Asfaw Solomon Tsegay & Yoming Feng & Naseem Ahmad & Adil Malik, 2020. "Effects of Pig Manure and Corn Straw Generated Biogas and Methane Enriched Biogas on Performance and Emission Characteristics of Dual Fuel Diesel Engines," Energies, MDPI, vol. 13(4), pages 1-23, February.
    7. Namasivayam, A.M. & Korakianitis, T. & Crookes, R.J. & Bob-Manuel, K.D.H. & Olsen, J., 2010. "Biodiesel, emulsified biodiesel and dimethyl ether as pilot fuels for natural gas fuelled engines," Applied Energy, Elsevier, vol. 87(3), pages 769-778, March.

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