Abstract
The paper presents results of testing a diesel engine fuelled by diesel oil, rapeseed oil and the mixture of the above mentioned oils at the ratio of 50:50. The study was performed in steady state conditions of engine work for the selected crankshaft speed (1600 rpm) and constant engine load (60 Nm). To develop an ecological analysis of the diesel engine test results were presented of the emission of toxic exhaust gas components (THC, CO, NOx), gases considered to be greenhouse gases (CO2), and a comparison was carried out of values of unit energy consumption. The obtained results indicate that an engine fuelled exclusively by rapeseed oil is characterised by high emissions of THC, CO, CO2 and NOx, nevertheless emission decreases may be observed, which result from varying compression levels.
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