Spray Combustion Behaviors of Diesel and Dialkyl Carbonate Blends in a Constant Volume Chamber

  • YANG Guofeng ,
  • WANG Zezhong ,
  • ZHANG Cong ,
  • LIN He ,
  • HAN Dong
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  • 1. Key Laboratory for Power Machinery and Engineering of Ministry of Education, Shanghai Jiao Tong University, Shanghai 200240, China
    2. Shanghai Non-carbon Energy Conversion and Utilization Institute, Shanghai 200240, China
    3. Shanghai Marine Diesel Engine Research Institute, Shanghai 201108, China

Online published: 2025-09-01

Supported by

This work was supported by National Key Research and Development Program (Grant No. 2022YFE0209000), Science and Technology Commission of Shanghai Municipality (Grant No. 22170712600, 24120742400, 24120750400), Chongqing Natural Science Foundation (Grant No. CSTB2022NSCQ-MSX1589) and Chinese Society of Internal Combustion Engines for the Chambroad-Jilin University Fuel Development Joint Laboratory Program.

Copyright

Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2025

Abstract

Dialkyl carbonate is a potential renewable alternative fuel for transportation. This study, utilizing a constant volume combustion chamber, investigates the characteristics of spray auto-ignition of dialkyl carbonate when mixed with diesel fuel. Measurements of combustion pressures and heat release rates during fuel spray combustion were conducted at varied conditions of fuel blending percentage, ambient temperature and pressure, injection pressure, and oxidizing atmospheres. The study also derives and compares ignition and combustion delays from pressure traces for different fuel blends. Results indicate that blending dialkyl carbonate with diesel fuel reduces ignition tendency, supported by delayed pressure rise and heat release processes with increased blending percentage of dialkyl carbonate. Further, at lower blending percentages of dialkyl carbonate, fuel ignition and combustion delays are insensitive to changes in injection pressure, but fuel combustion delay is significantly shortened with increased injection pressure at higher blending percentages. Finally, in an oxidizing atmosphere of CO2/O2 mixtures, fuel spray combustion processes are retarded, and this retardance is noticeable at higher dialkyl carbonate blending percentages.

Cite this article

YANG Guofeng , WANG Zezhong , ZHANG Cong , LIN He , HAN Dong . Spray Combustion Behaviors of Diesel and Dialkyl Carbonate Blends in a Constant Volume Chamber[J]. Journal of Thermal Science, 2025 , 34(5) : 1612 -1623 . DOI: 10.1007/s11630-025-2147-9

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