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1 2020

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Effect of Diesel Fuel Temperature on the Nitrogen Oxides Emission from a Compression-Ignition Engine

Czechlowski Mirosław, Gracz Weronika, Marcinkowski Damian, Golimowski Wojciech, Mazurkiewicz Jakub

Journal of Ecological Engineering

2020

Vol. 21, nr 3

164--170

The research aimed at analysing the influence of the diesel oil temperature on the NOx emission level. The tests were carried out on a test stand equipped with a 9.5 kW multi-fuel compression-ignition engine. The setup constitutes an experimental cogeneration unit discharging the produced energy into the power grid. The measurements were carried out under the D1 test procedure provided by ISO 8178–4 for testing engines operating at a constant speed. As a result of statistical analysis of the results obtained, significant differences were found in the u specific values of the nitrogen oxides emission gained for particular phases of D1 tests, when the engine was fed with diesel fuel of different temperatures. The results obtained confirmed the possibility of limiting the specific emission of NOx only when the engine is running at 75% of its nominal torque. An increase in the NOx emissions was recorded for the remaining loads.