Design and experimental study on the Urea-SCR converter exhaust system of the marine diesel engine

摘要

Urea-SCR catalytic converter can effectively reduce the NOx emission of diesel engines, but meanwhile catalytic converter will cause some pressure loss in the exhaust system, which has negative influences on the engine performances. In this paper, the method of theoretical analysis calculated the pressure loss of the SCR catalytic converter, and designing a new type of exhaust gas pipe. Through the test to meet the design requirements, the results can provide a reference for optimum design of SCR catalytic converters and assembling.