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Investigation of soot formation in Diesel-GTL fuel blends under quiescent conditions

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Abstract

In this study, a visual investigation of sprays and flames is performed, and soot formation in Diesel-GTL fuel blends is studied in a specially designed quiescent constant-volume chamber under various ambient gas temperatures and O2 concentrations. Similar to the case of soot formation during diesel fuel combustion, the sooting zone during the mixing-controlled combustion of Diesel-GTL blends is located in the leading portion of the jet boundaries. Auto-ignition delay and soot concentration decrease with an increase of GTL content in the fuel blend. Soot also decreases with lower O2 concentration, higher injection pressure, and lower ambient gas temperature. The lack of soot formation at lower O2 concentrations and lower temperatures suggests that Diesel-GTL fuel blends can be successfully utilized in low-temperature diesel combustion technologies that are currently being developed. Furthermore, this mixing controlled combustion method with Diesel-GTL blends can be used to modulate various engine operation parameters, and therefore to simultaneously reduce the formation of soot and NOx within a wide range of diesel engine loads.

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Authors and Affiliations

  1. Department of Mechanical Design Engineering, Chonnam National University, Cheonnam, 550-749, Korea

    U. B. Azimov, E. A. Roziboyev & K. S. Kim

  2. Korea Institute of Machinery and Materials, 171 Jang-dong, Yuseong-gu, Daejeon, 305-343, Korea

    D. S. Jeong & Y. G. Lee

  3. College of Engineering, Kangwon National University, Gangwon, 200-701, Korea

    J. E. Yun

Authors
  1. U. B. Azimov
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  2. E. A. Roziboyev
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  3. K. S. Kim
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  4. D. S. Jeong
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  5. Y. G. Lee
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  6. J. E. Yun
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Correspondence to K. S. Kim.

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Azimov, U.B., Roziboyev, E.A., Kim, K.S. et al. Investigation of soot formation in Diesel-GTL fuel blends under quiescent conditions. Int.J Automot. Technol. 9, 523–534 (2008). https://doi.org/10.1007/s12239-008-0062-1

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  • DOI: https://doi.org/10.1007/s12239-008-0062-1

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