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Title: Fuel injection strategies for performance improvement and emissions reduction in compression ignition engines - A review
Authors: Mohan, B.
Yang, W. 
Chou, S.K. 
Keywords: Injection pressure
Injection rate shaping
Injection timing
Pilot-post injections
Split/multiple injections
Issue Date: 2013
Citation: Mohan, B., Yang, W., Chou, S.K. (2013). Fuel injection strategies for performance improvement and emissions reduction in compression ignition engines - A review. Renewable and Sustainable Energy Reviews 28 : 664-676. ScholarBank@NUS Repository.
Abstract: The call for reduction in pollution has been mandated by governments policies worldwide. This challenges the engine manufacturer to strike an optimum between engine performance and emissions. However with growing technology in the field of fuel injection equipment, the task has become realizable. For past few years it has been the hot topic to improve combustion and emissions of compression ignition engines through optimizing the fuel injection strategies. Choosing between various injection strategies are potentially effective techniques to reduce emission from engines as injection characteristics have great influences on the process of combustion. For example, increasing the fuel injection pressure can improve the fuel atomization and subsequently improve the combustion process, resulting in a higher brake thermal efficiency, producing less HC, CO, PM emissions, but more NOx emission. Pilot injection help in reducing combustion noise and NOx emissions and immediate post injection may help in soot oxidation and late post injection helps in regeneration of diesel particulate filter. This article aims at a comprehensive review of various fuel injection strategies viz varying injection pressure, injection rate shapes, injection timing and split/multiple injections for engine performance improvement and emissions control. Although every strategy has its own merits and demerits, they are explained in detail, in view of helping researchers to choose the better strategy or combination for their applications. © 2013 Elsevier Ltd.
Source Title: Renewable and Sustainable Energy Reviews
ISSN: 13640321
DOI: 10.1016/j.rser.2013.08.051
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