Extension of the LP-EGR Operation Area under RDE Terms
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Low pressure exhaust gas recirculation offers great potential for the reduction of engine- out nitrogen oxide emissions, with a reduction of specific fuel consumption compared to high pressure exhaust gas recirculation. By introducing the exhaust gas upstream of the turbocharger, there is a danger of forming condensation which could cause damage to the compressor wheel. In a joint study between Jaguar Land Rover (JLR) and FEV Europe, two JLR engines have been investigated specifically to determine the limits for the formation of condensation, depending on coolant and intake air temperatures.
The Limits of Low Pressure EGR
The authors want to thank Dr.-Ing. Christoph Menne and Robin Maugham, PhD for their support in performing the study and creating this article.