This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Steady State Performance of Spark Ignition Engine with Exhaust Energy Recovery
Technical Paper
2020-24-0012
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
As is known, internal combustion engines based on Otto or Diesel cycles cannot complete the expansion process of the gas inside the cylinder, thus losing a relevant energy content, in the order of 30% of total. The residual energy of the unexpanded gas has been partially exploited through the use of an exhaust gas turbine for turbocharging the internal combustion engine; further attempts have been made with several compound solutions, with an electric generator connected to the turbocharger allowing to convert into electrical energy the quota power produced by the turbine which is not used by the compressor, or with a second turbine downstream the first to increase the exhaust gas energy recovery. Turbo-compound solutions were also employed in large marine Diesel engines, where the second turbine downstream the first was used to deliver more power to the main propeller shaft. In all these cases the overall efficiency increments remained within 5%. If completely recovered by the use of a properly designed expander-generator unit, the energy content of the unexpanded in-cylinder gas could substantially increase the overall efficiency of the thermal unit. In the present paper the authors evaluate, by means of simple yet effective calculations, the efficiency attainable by a thermal unit composed of a spark ignition engine endowed of an exhaust gas energy recovery expander connected to a proper generator. The proposed thermal unit, which is particularly suitable for hybrid propulsion solutions, has been evaluated both in the naturally aspirated and in the supercharged version. The efficiency of each thermal unit is also compared to reference baseline engine, thus highlighting the real benefit introduced by the adoption of the proposed thermal unit. As result, it was found that the complete and efficient recovery of the unexpanded gas energy has the potential to increase the overall efficiency of the propulsion system by 10-15%, depending on the characteristics of the thermal engine and of the exhaust energy expander-generator unit.
Citation
Pipitone, E. and Caltabellotta, S., "Steady State Performance of Spark Ignition Engine with Exhaust Energy Recovery," SAE Technical Paper 2020-24-0012, 2020, https://doi.org/10.4271/2020-24-0012.Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| Unnamed Dataset 2 | ||
| Unnamed Dataset 3 | ||
| Unnamed Dataset 4 | ||
| Unnamed Dataset 5 | ||
| Unnamed Dataset 6 | ||
| Unnamed Dataset 7 |
Also In
References
- European Commission 2011
- European Commission https://europa.eu/european-union/topics/transport_en
- Pipitone , E. , and Beccari , A. A Study on the Use of Combustion Phase Indicators for MBT Spark Timing on a Bi-Fuel Engine SAE Technical Paper 2007-24-0051 2007 https://doi.org/10.4271/2007-24-0051
- Aghaali , H. , and Ångström , H.-E. A Review of Turbocompounding as a Waste Heat Recovery System for Internal Combustion Engines Renewable and Sustainable Energy Reviews 49 813 824 2015 10.1016/j.rser.2015.04.144
- Noor , A.M. , Puteh , R.C. , and Rajoo , S. Waste Heat Recovery Technologies in Turbocharged Automotive Engine - A Review Journal of Modern Science and Technology 2 1 108 119 2014
- Alshammari , M. , Alshammari , F. , and Pesyridis , A. Electric Boosting and Energy Recovery Systems for Engine Downsizing Energies 12 24 4636 2019 10.3390/en12244636
- Pasini , G. , Lutzemberger , G. , Frigo , S. , Marelli , S. et al. Evaluation of an Electric Turbo Compound System for SI Engines: A Numerical Approach Applied Energy 162 527 540 2016 10.1016/j.apenergy.2015.10.143
- Arsie , I. , Cricchio , A. , Pianese , C. , Ricciardi , V. et al. Evaluation of CO2 Reduction in SI Engines with Electric Turbo-Compound by Dynamic Powertrain Modelling IFAC-PapersOnLine 28 15 93 100 2015 10.1016/j.ifacol.2015.10.014
- Millo , F. , Mallamo , F. , Pautasso , E. , and Ganio Mego , G. The Potential of Electric Exhaust Gas Turbocharging for HD Diesel Engines SAE Technical Papers 2006-01-0437 2006 10.4271/2006-01-0437
- Hopmann , U. , and Algrain , M. Diesel Engine Electric Turbo Compound Technology SAE Technical Paper 2003-01-2294 2003 https://doi.org/10.4271/2003-01-2294
- Alias , M.N. , Rosnizam , C.P. , Srithar , R. , Uday , M. et al. Simulation Study on Electric Turbo-Compound (ETC) for Thermal Energy Recovery in Turbocharged Internal Combustion Engine Applied Mechanics and Materials 799-800 895 901 2015 https://doi.org/10.4028/www.scientific.net/AMM.799-800.895
- Kant , M. , Romagnoli , A. , Mamat , A.M. , and Martinez-Botas , R.F. Heavy-duty Engine Electric Turbocompounding Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 229 4 457 472 2015 10.1177/0954407014547237
- Cipollone , R. , Di Battista , D. , and Gualtieri , A. Turbo Compound Systems to Recover Energy in ICE International Journal of Engineering and Innovative Technology (IJEIT) 3 6 2013 http://www.ijeit.com
- Zhuge , W. , Huang , L. , Wei , W. , Zhang , Y. et al. Optimization of an Electric Turbo Compounding System for Gasoline Engine Exhaust Energy Recovery SAE Technical Paper 2011-01-0377 2011 https://doi.org/10.4271/2011-01-0377
- Haughton , A. , and Dickinson , A. Development of an Exhaust Driven Turbine-Generator Integrated Gas Energy Recovery System (TIGERS®) SAE Technical Paper 2014-01-1873 2014 10.4271/2014-01-1873
- Abul Masrur , M.
- Eriksson , L. , Lindell , T. , Leufven , O. , and Thomasson , A. Scalable Component-Based Modeling for Optimizing Engines with Supercharging, E-Boost and Turbocompound Concepts SAE Int. J. Engines 5 2 579 595 2012 https://doi.org/10.4271/2012-01-0713
- Cisotti , A. 2001
- Pipitone , E. and Beccari , S. Performance and Combustion Analysis of a Supercharged Double-Fuel Spark Ignition Engine 74th ATI National Congress, AIP Conf. Proc. 2191 020017-1 020017-9 2019 https://doi.org/10.1063/1.5138750
- Pipitone , E. , and Beccari , A. A Study on the Use of Combustion Phase Indicators for MBT Spark Timing on a Bi-Fuel Engine SAE Technical Paper 2007-24-0051 2007 https://doi.org/10.4271/2007-24-0051
- https://webbook.nist.gov/chemistry/