comparison of optimum combination of design and fuel factors of a di diesel engine obtained by various optimization techniques and validation through development of theoretical 1d model

Abstract

Globally, large numbers of premature deaths from noncommunicable newlinediseases were caused by air pollution. Globally, diesel newlineemissions deteriorate the ambient air quality in many cities. The growing newlinenumber of vehicles increases the emission and significantly affects the health newlineof human bodies. To sort out the current scenario, a reduction in current diesel newlineemission is required. Progress in technology has motivated many researchers newlineacross the globe to focus on emission control of Compression Ignition (CI) newlineengines. However developing a CI engine with lower NOx and smoke newlineemission to satisfy the severe emission norms is the challenge for them which newlinenecessitates in developing new technologies for the same. As the NOx and newlinesmoke formation mechanisms are inversely proportional to each other with newlinerespect to temperature, any attempt to decrease one emission will lead to an newlineincrease in another which necessitates to develop a methodology to newlinesimultaneously control both the emission. newlineEarlier research works on emission controlling technologies were newlinedeveloped through in cylinder control and fuel modification methods. In newlinecylinder control techniques were employed through modification of engine newlinedesign parameters such as injection timing, injection pressure, Exhaust Gas newlineRecirculation (EGR) and piston geometry. Fuel modification for CI engine newlinewas attempted with admitting an alternative fuel into the cylinder as a partial newlineor complete replacement to diesel. Methyl ester of vegetable oil (biodiesel) newlinewhich was approved as an alternative to petroleum diesel by Environmental newlineProtection Agency is renewable in nature, biodegradable, non-toxic and also newlinehas the ability to reduce most of the pollutants through its clean burning newline