期刊名称：Iranica Journal of Energy and Environment (IJEE)
印刷版ISSN：2079-2115
电子版ISSN：2079-2123
出版年度：2014
期号：1
页码：42-50
语种：English
出版社：Noshirvani University of TEchnology
摘要：Stringent emission regulations on diesel-powered vehicles and some of biodiesel emissions have led to development of new technologies to reduce emission of nitrogen oxides (NOX). Out of the choices available, Selective Catalytic Reduction (SCR) has shown to be the most promising exhaust after-treatment system for reducing oxides of nitrogen in the near term in-use applications. SCRs use the ammonia containing compound urea, as a reducing agent. This paper describes an experimental investigation of Urea-SCR,which has been designed for comparing efficiency of the SCR system for diesel and biodiesel. For this study, a SCR exhaust system was tested on a steady state, direct injection Kirloskar single cylinder diesel engine. Mahua Methyl Ester (MME) oil has used as a biodiesel. From the experimentation, it was concluded that the conversion efficiencies were higher for diesel comparable to biodiesel. The analysis also shows the Urea SCR system has a maximum of 93.4% NOX conversion efficiency of diesel fuel. For biodiesel, maximum NOX conversion efficiency of Urea-SCR was approximately 49%. This experimentation also revealed that the Urea-SCR system has an excellent HC conversion efficiency at all engine loads and using both fuels.
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