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A Comparative Analysis of WHR System in HD Engines Using Conventional Diesel Combustion and Partially-Premixed Combustion
Technical Paper
2012-01-1930
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
In the truck industry there is a continuous demand to increase the efficiency and to decrease the emissions. To acknowledge both these issues a waste heat recovery system (WHR) is combined with a partially premixed combustion (PPC) engine to deliver an efficient engine system. Over the past decades numerous attempts to increase the thermal efficiency of the diesel engine has been made. One such attempt is the PPC concept that has demonstrated potential for substantially increased thermal efficiency combined with much reduced emission levels.
So far most work on increasing engine efficiency has been focused on improving the thermal efficiency of the engine while WHR, which has an excellent potential for another 1-5 % fuel consumption reduction, has not been researched that much yet. In this paper a WHR system using a Rankine cycle has been developed in a modeling environment using IPSEpro.
A comparative investigation of the WHR potential between the existing conventional diesel combustion and the novel PPC combustion is done. Even though the PPC is a low temperature combustion concept (LTC), implying that the exhaust temperatures are lower than for the traditional diesel combustion, the EGR quantity is higher which in total still offers improved WHR potential as that of conventional combustion. The EGR cooler offers higher quality heat when compared to exhaust gas and CAC, hence the WHR potential using only the EGR system is considered in this paper.
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Arunachalam, P., Nyberg, B., Tuner, M., and Tunestal, P., "A Comparative Analysis of WHR System in HD Engines Using Conventional Diesel Combustion and Partially-Premixed Combustion," SAE Technical Paper 2012-01-1930, 2012, https://doi.org/10.4271/2012-01-1930.Also In
References
- Noehre, C. Andersson, M. Johansson, B. Hultqvist, A. “Characterization of Partially Premixed Combustion,” SAE Technical Paper 2006-01-3412 2006 10.4271/2006-01-3412
- Iwabuchi, Y. Kawai, K. Shoji, T. Takeda, Y. “Trial of New Concept Diesel Combustion System - Premixed Compression-Ignited Combustion -,” SAE Technical Paper 1999-01-0185 1999 10.4271/1999-01-0185
- Manente, V. Johansson, B. Tunestal, P. “Partially Premixed Combustion at High Load using Gasoline and Ethanol, a Comparison with Diesel,” SAE Technical Paper 2009-01-0944 2009 10.4271/2009-01-0944
- www.gtisoft.com
- Tunér, M. Fröjd, K. Seidel, L. Mauss, F. et al. “Diesel-PPC engine: Predictive Full Cycle Modeling with Reduced and Detailed Chemistry,” SAE Technical Paper 2011-01-1781 2011 10.4271/2011-01-1781
- Latz, G. Andersson, S. Munch, K. “Comparison of Working Fluids in Both Subcritical and Supercritical Rankine Cycles for Waste-Heat Recovery Systems in Heavy-Duty Vehicles,” SAE Technical Paper 2012-01-1200 2012 10.4271/2012-01-1200
- Ringler, J. Seifert, M. Guyotot, V. Hübner, W. “Rankine Cycle for Waste Heat Recovery of IC Engines,” SAE Int. J. Engines 2 1 67 76 2009 10.4271/2009-01-0174
- Teng, H. Regner, G. Cowland, C. “Achieving High Engine Efficiency for Heavy-Duty Diesel Engines by Waste Heat Recovery Using Supercritical Organic-Fluid Rankine Cycle,” SAE Technical Paper 2006-01-3522 2006 10.4271/2006-01-3522
- Teng, H. Regner, G. Cowland, C. “Waste Heat Recovery of Heavy-Duty Diesel Engines by Organic Rankine Cycle Part II: Working Fluids for WHR-ORC,” SAE Technical Paper 2007-01-0543 2007 10.4271/2007-01-0543
- Arunachalam, P. Shen, M. Tuner, M. Tunestal, P. et al. “Waste Heat Recovery from Multiple Heat Sources in a HD Truck Diesel Engine Using a Rankine Cycle - A Theoretical Evaluation,” SAE Technical Paper 2012-01-1602 2012 10.4271/2012-01-1602