International Scientific Journal


The paper presents results of experimental investigation of co-combustion of fuels of various reactivity at dual fuel Diesel engine. The tested fuels were ethanol fuel (EF) and diesel. It was used one-cylinder direct injection Diesel engine. Researches were conducted at constant rotational speed and constant injection timing. With the increase in EF fraction the deterioration of combustion process was indicated. On the basis of heat release variation were determined combustion phases: ignition delay, combustion duration. With the increase in EF participation in combustion processes the IMEP increased as well. There was no noticeable effect of ethanol on unrepeatability of indicated mean effective pressure. The increase in EF fraction causes the specific NOx emission decreases but specific total hydrocarbon emission increased.
PAPER REVISED: 2017-12-24
PAPER ACCEPTED: 2017-12-21
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THERMAL SCIENCE YEAR 2018, VOLUME 22, ISSUE Issue 3, PAGES [1285 - 1297]
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