Effectiveness of series and parallel turbo compounding on turbocharged diesel engine

Turbo compounding is one of the ways to recover wasted energy in the exhaust. This paper presents the effectiveness of series and parallel turbo compounding on a turbocharged diesel engine. A power turbine is coupled to the exhaust manifold, either in series or in parallel with the turbocharger, to recover waste heat energy. The effectiveness and working range of both configurations are presented in this paper. The engine in the current study is a 6 cylinder, 13 L diesel engine. Both the configurations were modeled with one dimensional simulation software. The current study found that series and parallel turbo compounding could improve average brake specific fuel consumption (BSFC) by 1.9% and 2.5%, respectively. When the power turbine is mechanically connected to the engine, it could increase the average engine power by 1.2% for the series configuration and 2.5% for the parallel configuration.

[1]  Srithar Rajoo,et al.  Engine turbocharger performance prediction: One-dimensional modeling of a twin entry turbine , 2012 .

[2]  B. Ghobadian,et al.  A Semi-Empirical Model to Predict Diesel Engine Combustion Parameters , 2013 .

[3]  Sulaiman Hasan,et al.  Continuous biodiesel production using ultrasound clamp on tubular reactor , 2013 .

[4]  Srithar Rajoo,et al.  Non-adiabatic pressure loss boundary condition for modelling turbocharger turbine pulsating flow , 2015 .

[5]  Gholamhassan Najafi,et al.  The effect of methanol-diesel blended ratio on CI engine performance , 2013 .

[6]  Abul Kalam Azad,et al.  A Comprehensive Study of Di Diesel Engine PerformanceWithvegetable Oil: An Alternative Bio-Fuel Source ofEnergy , 2012 .

[7]  R. Mamat,et al.  Influence of Fuel Temperature on a Diesel Engine Performance Operating with Biodiesel Blended , 2012 .

[8]  N. Kapilan,et al.  Improvement of Performance of Dual Fuel Engine Operated at Part Load , 2010 .

[9]  Srithar Rajoo,et al.  Integration of meanline and one-dimensional methods for prediction of pulsating performance of a turbocharger turbine , 2014 .

[10]  Srithar Rajoo,et al.  Effects of Mechanical Turbo Compounding on a Turbocharged Diesel Engine , 2013 .

[11]  Richard Stobart,et al.  Heat Recovery and Bottoming Cycles for SI and CI Engines - A Perspective , 2006 .

[12]  Alessandro Romagnoli,et al.  A High Performance Low Pressure Ratio Turbine for Engine Electric Turbocompounding , 2011 .

[13]  Rizalman Mamat,et al.  Effects of Air Intake Pressure on the Engine Performance, Fuel Economy and Exhaust Emissions of A Small Gasoline Engine , 2014 .

[14]  R. Mamat,et al.  Effects of Particulate Matter Emissions of Diesel Engine using Diesel–Methanol Blends , 2014 .

[15]  Dimitrios T. Hountalas,et al.  Recovering Energy from the Diesel Engine Exhaust Using Mechanical and Electrical Turbocompounding , 2007 .

[16]  Andrew P. Wandel,et al.  An introduction to a homogeneous charge compression ignition engine , 2014 .

[17]  Mohd Hafizil Mat Yasin,et al.  INFLUENCE OF PALM METHYL ESTER (PME) AS AN ALTERNATIVE FUEL IN MULTICYLINDER DIESEL ENGINE , 2012 .

[18]  Adrian Jackson,et al.  ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition , 2011 .