The Effect of Fuel Characteristics on the Fuel Injection Process in a CI Engine Fuelled on Diesel and DME

Cipolat, D.

doi:10.4271/2007-24-0119

Cited by 6 publications

(2 citation statements)

References 8 publications

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“…Zhao et al [15] illustrated the differences of injection parameters at different temperature through the numerical simulations. Meanwhile, Cipolat [16] and Zhang et al [17] compared the fuel-injection process and the combustion between diesel fuel and DME, and found that there is a striking difference between them. The same reason was obtained from the difference of fuel properties.…”

Section: Introductionmentioning

confidence: 97%

Effects of Fuel Temperature on Injection Process and Combustion of Dimethyl Ether Engine

Gao

Yuan²,

Zhou³

et al. 2013

Journal of Energy Resources Technology

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To investigate the effects of fuel temperature on the injection process in the fuel-injection pipe and the combustion characteristics of compression ignition (CI) engine, tests on a four stroke, direct injection dimethyl ether (DME) engine were conducted. Experimental results show that as the fuel temperature increases from 20 to 40 °C, the sound speed is decreased by 12.2%, the peak line pressure at pump and nozzle sides are decreased by 7.2% and 5.6%, respectively. Meanwhile, the injection timing is retarded by 2.2 °CA and the injection duration is extended by 0.8 °CA. Accordingly, the ignition delay and the combustion duration are extended by 0.7 °CA and 4.0 °CA, respectively. The cylinder peak pressure is decreased by 5.4%. As a result, the effective thermal efficiency is decreased, especially for temperature above 40 °C. Before beginning an experiment, the fuel properties of DME, including the density, the bulk modulus, and the sound speed were calculated by "ThermoData." The calculated result of sound speed is consistent with the experimental results.

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Section: Introductionmentioning

confidence: 97%

Effects of Fuel Temperature on Injection Process and Combustion of Dimethyl Ether Engine

Gao

Yuan²,

Zhou³

et al. 2013

Journal of Energy Resources Technology

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“…However, there have been few reports in the literature concerning the DME injection process. Only a comparative study on the injection processes of a compression ignition (CI) engine when fuelled with diesel and DME has been carried out by Zhang et al [15] and by Cipolat [16], respectively. These studies indicated that the DME delivery timing should be advanced in high-speed conditions owing to the lower DME acoustic velocity.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the injection process and combustion of a dimethyl ether engine with different nozzle flow areas

Zhu

Hao

Gao

et al. 2011

Proceedings of the Institution of Mechanical Engineers, Part D:

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Dimethyl ether (DME) is a promising alternative fuel, which can be used as a substitute for fossil diesel fuels, with a smaller lower heating value. When used in diesel engines, the nozzle flow area (i.e. the number of nozzle holes 3 nozzle hole diameter) of the engine is normally increased to maintain the engine power. In this study, three kinds of nozzle (with nozzle flow areas of 5 3 0.30 mm, 5 3 0.35 mm, and 5 3 0.40 mm respectively) were prepared. With a two-cylinder diesel engine, the effects of the nozzle flow area on the DME injection process and combustion characteristics were investigated. The experimental results indicate that the DME acoustic velocity shows no variation with the change in the nozzle hole diameter and that the DME injection timing is not affected. However, as the nozzle hole diameter increased, the DME line pressure (and, in particular, the second peak of the line pressure on the nozzle side) is greatly decreased. Meanwhile, the fall of the needle valve lift is advanced, resulting in a decrease in the injection duration. Further, the engine ignition delay is slightly increased, the total combustion duration is slightly shortened, and the engine brake thermal efficiency is slightly elevated.

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Composition and toxicity of particulate matter emitted from turbocharged common rail DME–biodiesel engine

Sun

Qiao

et al. 2020

Environ Sci Pollut Res

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The Effect of Fuel Characteristics on the Fuel Injection Process in a CI Engine Fuelled on Diesel and DME

Cited by 6 publications

References 8 publications

Effects of Fuel Temperature on Injection Process and Combustion of Dimethyl Ether Engine

Effects of Fuel Temperature on Injection Process and Combustion of Dimethyl Ether Engine

Investigation of the injection process and combustion of a dimethyl ether engine with different nozzle flow areas

Composition and toxicity of particulate matter emitted from turbocharged common rail DME–biodiesel engine

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