The Development of a Method for Evaluating the Effect of Fuel Quality on the Cold Starting of a Range of Diesel Engines

Bickerton, Ronald; Such, Chris; Sørum, P. Å.; Fløysand, S. Å.

doi:10.4271/921748

Cited by 4 publications

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“…Moreover, the evaporation properties are different for the reference fuel and EHN, the behavior of which is not known in cold conditions. Bickerton et al observed that an increase in the CN obtained with the help of an additive is not as effective at −25 °C as an increase in the natural CN …”

Section: Resultsmentioning

confidence: 99%

Evaluation of Diesel Engine Cold-Start Performance: Definition of a Grading System To Assess the Impact of Fuel

et al. 2011

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The objective of this study is first to develop and validate a scientific methodology for the evaluation of diesel engine cold-start performance and then to use this methodology to assess the impact of fuels with respect to two selected fuel properties: variation in the cetane number (from 55 to 70) and use of biodiesel [rapeseed methyl ester (RME) and soybean methyl ester (SME)]. Engine tests were performed at À25 °C on a common rail, four-cylinder diesel engine (Euro 4). The methodology developed shows that the cetane number has a significant impact on the cold-start performance and that the use of cetane improvers ("procetane additives") does not lead to an acceptable performance for a low cetane fuel. The addition of ester has a negative impact on cold operation by increasing the starting delay and opacity. Nevertheless, when the injection settings were simply optimized, the performance obtained in cold conditions with the biodiesel fuel tested here can equal those obtained with a conventional fuel.

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Section: Resultsmentioning

confidence: 99%