Publication Date:
2018-06-28
Description:
It is well known that in DI diesel engines the formation of NOx is chiefly due to the prevailing high pressure and temperature in the combustion chamber. The methods used for lowering NOx is by induction of water which is blended with diesel oil, which leads to longer delay period, improper combustion and lowered release of thermal energy of fuel thus lowering the efficiency of the engine. In overcoming above problems, a novel approach is proposed in this work in which water is directly injected into the combustion chamber just when the temperature and pressure of gases inside the combustion is about to rise to a peak value. This lowers the formation of NOx very effectively. Adding to this aspect, the water sprayed absorbs heat from the hot gases as well as from the hot metallic surfaces of the combustion chamber and becomes super-heated steam, which augments the pressure built up at a lower temperature. This will help in increasing the power output of the engine. Experiments ha...
Print ISSN:
1757-8981
Electronic ISSN:
1757-899X
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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