Influence of PM fouling on effectiveness of heat exchanges in a diesel engine with fin-type EGR coolers of different sizes

The particulate matter (PM) fouling in exhaust gas recirculation (EGR) coolers degrades the heat transfer performance considerably, which in turn has a significant influence on the design of the EGR cooler. To investigate the effects of PM fouling on the heat exchange effectiveness in the fin-type EGR coolers of six different sizes, engine dynamometer experiments were performed. The experimental results show that the heat exchange effectiveness varies with the size of the fin-type EGR cooler.

[1]  J. Storey,et al.  Modeling of Thermophoretic Soot Deposition and Hydrocarbon Condensation in EGR Coolers , 2009 .

[2]  John M. E. Storey,et al.  Hydrocarbons and Particulate Matter in EGR Cooler Deposits: Effects of Gas Flow Rate, Coolant Temperature, and Oxidation Catalyst , 2008 .

[3]  G. C. Mavropoulos,et al.  Effect of exhaust gas recirculation (EGR) temperature for various EGR rates on heavy duty DI diesel engine performance and emissions , 2008 .

[4]  Daniel W. Wendland,et al.  Automobile Exhaust-System Steady-State Heat Transfer , 1993 .

[5]  Francisco José Arnau,et al.  Cooled EGR Modulation: A Strategy to Meet EURO IV Emission Standards in Automotive DI Diesel Engines , 2002 .

[6]  Wolfgang Knecht,et al.  Development of EGR Coolers for Truck and Passenger Car Application , 2001 .

[7]  Thomas L. McKinley,et al.  Modeling Sulfuric Acid Condensation in Diesel Engine EGR Coolers , 1997 .

[8]  Dimitrios T. Hountalas,et al.  The Effect of EGR on the Performance and Pollutant Emissions of Heavy Duty Diesel Engines Using Constant and Variable AFR , 2001 .

[9]  Dimitrios T. Hountalas,et al.  Using Advanced Injection Timing and EGR to Improve DI Diesel Engine Efficiency at Acceptable NO and Soot Levels , 2001 .

[10]  Dae Hee Lee,et al.  An experimental study on heat exchange effectiveness in the diesel engine EGR coolers , 2008 .

[11]  D. Tomazic,et al.  Cooled EGR - A Must or an Option for 2002/04 , 2002 .

[12]  G. Regner,et al.  Particulate Fouling in EGR Coolers , 2009 .

[13]  John B. Heywood,et al.  Internal combustion engine fundamentals , 1988 .

[14]  Shuji Kimura,et al.  New Combustion Concept for Ultra-Clean and High-Efficiency Small DI Diesel Engines , 1999 .