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Comparative performance and emission studies for vaporized diesel fuel and gasoline as supplements in swirl-chamber diesel engines

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  • Kouremenos, D.A.
  • Rakopoulos, C.D.
  • Kotsiopoulos, P.

Abstract

An experimental study has been conducted to evaluate and compare the use of fumigated diesel fuel or gasoline as supplementary fuels for a naturally-aspirated, four-stroke diesel engine with a swirl-combustion chamber. The supplementary diesel fuel or gasoline is introduced together with the aspirated air (fumigation) in various proportions with respect to the main diesel fuel, which is injected in the usual manner. The influence of fuel/feed ratios (supplementary or main feed), for a large range of loads, has been examined on fuel consumption, pressure diagrams, exhaust smokiness and exhaustgas emissions (nitrogen oxides, hydrocarbons and carbon monoxide). Knocking limits have been determined. The differences in the measured performance and exhaust-emission parameters from baseline engine operation, when using either supplementary diesel fuel or gasoline fumigated in the intake air, are determined and compared. Our study shows promise for this approach and indicates that above ~60% of maximum load, there is high smoke reduction with only a slight change in specific fuel consumption, when using either one of the supplementary fumigated fuels. Examination of gaseous pollutant levels shows involved relations with respect to load and fuel proportions. Theoretical aspects of the supplementary fuel-mode (fumigation) of combustion are used to explain the observed engine behaviour.

Suggested Citation

  • Kouremenos, D.A. & Rakopoulos, C.D. & Kotsiopoulos, P., 1990. "Comparative performance and emission studies for vaporized diesel fuel and gasoline as supplements in swirl-chamber diesel engines," Energy, Elsevier, vol. 15(12), pages 1153-1160.
    • Handle: RePEc:eee:energy:v:15:y:1990:i:12:p:1153-1160
    DOI: 10.1016/0360-5442(90)90106-C
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    Citations

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    Cited by:

    1. Rakopoulos, C.D. & Antonopoulos, K.A. & Rakopoulos, D.C., 2007. "Experimental heat release analysis and emissions of a HSDI diesel engine fueled with ethanol–diesel fuel blends," Energy, Elsevier, vol. 32(10), pages 1791-1808.
    2. Jamuwa, D.K. & Sharma, D. & Soni, S.L., 2017. "Experimental investigation of performance, exhaust emission and combustion parameters of compression ignition engine with varying ethanol energy fractions," Energy, Elsevier, vol. 127(C), pages 544-557.
    3. Rakopoulos, C.D., 1992. "Comparative performance and emission studies when using olive oil as a fuel supplement in DI and IDI diesel engines," Renewable Energy, Elsevier, vol. 2(3), pages 327-331.
    4. Bodisco, Timothy & Brown, Richard J., 2013. "Inter-cycle variability of in-cylinder pressure parameters in an ethanol fumigated common rail diesel engine," Energy, Elsevier, vol. 52(C), pages 55-65.
    5. Şahin, Z. & Durgun, O. & Bayram, C., 2008. "Experimental investigation of gasoline fumigation in a single cylinder direct injection (DI) diesel engine," Energy, Elsevier, vol. 33(8), pages 1298-1310.
    6. Bodisco, Timothy & Tröndle, Philipp & Brown, Richard J., 2015. "Inter-cycle variability of ignition delay in an ethanol fumigated common rail diesel engine," Energy, Elsevier, vol. 84(C), pages 186-195.
    7. Rakopoulos, Dimitrios C. & Rakopoulos, Constantine D. & Giakoumis, Evangelos G. & Dimaratos, Athanasios M., 2012. "Characteristics of performance and emissions in high-speed direct injection diesel engine fueled with diethyl ether/diesel fuel blends," Energy, Elsevier, vol. 43(1), pages 214-224.

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