IMPROVING DIESEL ENGINE OPERATION FOR A GREENER ENVIRONMENT USING HYDROGEN FUELLING

Nikolaos Cristian NUTU, Constantin PANA, Niculae NEGURESCU, Alexandru CERNAT, Ionel MIRICA

Abstract


The objective of the paper is the improvement of energetic and pollution performance of a truck diesel engine which operates fuelled with hydrogen and diesel fuel. The authors recommend hydrogen addition within the intake manifold of the engine, a method also known as diesel-gas method. In order to conduct the experiments a 10.34 l turbocharged truck diesel engine was equipped with an external gas injection system for hydrogen fuelling.
The maximum hydrogen quantity was limited to keep the maximum pressure rise rate as low as possible and to limit the smoke emission level. The results of experimental investigations show both the increase of the thermal efficiency of the engine and the reduction of the NOx and smoke emissions level.


Keywords


pollution; diesel-gas; NOx; combustion; fuel; consumption

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