Direct Injection of Diesel and Ethanol in a Diesel Engine - A Numerical Analysis

Burnete, Nicolae Vlad; Iclodean, Călin; Moldovanu, Dan; Filip, Nicolae

doi:10.1007/978-3-319-45447-4_42

Cited by 2 publications

(1 citation statement)

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“…The sector simulation model is based on a single cylinder research engine (SCRE) AVL 5402 with the following characteristics: Following the development of the simulation model an extensive validation for diesel and a blend of diesel and ethanol was done for different speeds and loads, which is presented in [1]. To improve accuracy of the input data a more detailed simulation model was also used [16,17]. The experimental data required for the testing was gathered using the equipment in the Laboratory of research, testing and homologation of internal combustion engines (TESTECOCEL) of the Department of Automotive and Transport within the Technical University of Cluj-Napoca [18].…”

Section: Methodssupporting

confidence: 47%

Influences of diesel pilot injection on ethanol autoignition - a numerical analysis

Burnete

JURCHIȘ

Iclodean

2017

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. The aim of this study is to highlight the influences of the diesel pilot quantity as well as the timing on the autoignition of ethanol and the pollutant emissions resulting from the combustion process. The combustion concept presented in this paper requires the injection of a small quantity of diesel fuel in order to create the required autoignition conditions for ethanol. The combustion of the diesel droplets injected in the combustion chamber lead to the creation of high temperature locations that favour the autoignition of ethanol. However, due to the high vaporization enthalpy and the better distribution inside the combustion chamber of ethanol, the peak temperature values are reduced. Due to the lower temperature values and the high burning velocity of ethanol (combined with the fact that there are multiple ignition sources) the conditions required for the formation of nitric oxides are not achieved anymore, thus leading to significantly lower NOx emissions. This way the benefits of the Diesel engine and of the constant volume combustion are combined to enable a more efficient and environmentally friendly combustion process.

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