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Injection Strategies for Isobaric Combustion
ISSN: 0148-7191, e-ISSN: 2688-3627
Published December 19, 2019 by SAE International in United States
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In a previous study, we demonstrated that the isobaric combustion cycle, achieved with a split injection strategy, can be more suitable for the double compression expansion engine concept than the conventional diesel combustion cycle. The present work is focused on understanding the effect of different injection strategies on the heat release, efficiency, and emissions of isobaric combustion at the peak cylinder pressure of 150 bar. In situ injection rate measurements are performed to improve our understanding of the heat release rate shape and pollutant formation. A variation of load is performed to demonstrate the feasibility of the isobaric combustion cycle at higher loads, and the means of achieving them. The thermal efficiency reduces at lower loads because of heat losses. It peaks at a medium load point before reducing again at higher loads because of exhaust losses. The effect of altering the injection strategy on the isobaric combustion cycle is also studied at a constant equivalence ratio. The alteration of injection strategy is proven to have minimal effect on efficiency, loss mechanisms, and emissions when more than one injection is used.
- Rafig Babayev - Clean Combustion Research Center (CCRC), King Abdullah Unive
- Moez Ben Houidi - Clean Combustion Research Center (CCRC), King Abdullah Unive
- VS Bhavani Shankar - Clean Combustion Research Center (CCRC), King Abdullah Unive
- Bassam Aljohani - Clean Combustion Research Center (CCRC), King Abdullah Unive
- Bengt Johansson - Clean Combustion Research Center (CCRC), King Abdullah Unive
CitationBabayev, R., Houidi, M., Shankar, V., Aljohani, B. et al., "Injection Strategies for Isobaric Combustion," SAE Technical Paper 2019-01-2267, 2019, https://doi.org/10.4271/2019-01-2267.
Data Sets - Support Documents
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- Lam , N. , Tuner , M. , Tunestal , P. , Andersson , A. et al. Double Compression Expansion Engine Concepts: A Path to High Efficiency SAE Int. J. Engines 8 4 1562 1578 2015 https://doi.org/10.4271/2015-01-1260
- Lam , Nhut , Arne Andersson , and Per Tunestal Double Compression Expansion Engine Concepts: Efficiency Analysis over a Load Range SAE Technical Papers 2018 2018
- Bhavani Shankar , V. , Lam , N. , Andersson , A. , and Johansson , B. Optimum Heat Release Rates for a Double Compression Expansion (DCEE) Engine SAE Technical Paper 2017-01-0636 2017 10.4271/2017-01-0636.
- Shankar, Bhavani , Vijai Shankar , Bengt Johansson , and Arne Andersson Double Compression Expansion Engine: A Parametric Study on a High-Efficiency Engine Concept SAE Technical Paper Series 2018
- Okamoto , T. and Uchida , N. New Concept for Overcoming the Trade-Off between Thermal Efficiency, Each Loss and Exhaust Emissions in a Heavy Duty Diesel Engine SAE Int. J. Engines 9 2 2016 10.4271/2016-01-0729
- Babayev , R. , Ben-Houidi , M. , Andersson , A. , and Johansson , B. Isobaric Combustion: A Potential Path to High Efficiency, in Combination with the Double Compression Expansion Engine (DCEE) Concept SAE Technical Paper 2019-01-0085 2019
- Reducing Particulate and NO x Emissions by Using Multiple Injections in a Heavy Duty D.I. Diesel Engine T.C. Tow , D.A. Pierpont and R.D. Reitz 103 1994 1403 1417 x
- Influence of Multiple Injection Strategies on Emissions, Combustion Noise and BSFC of a DI Common Rail Diesel Engine M. Badami , F. Mallamo , F. Millo and E. E. Rossi 111 JOURNAL OF ENGINES 2002 1118 1129
- Exploring the Use of Multiple Injectors and Split Injection to Reduce DI Diesel Engine Emissions A. Uludogan , J. Xin , and R.D. Reitz
- Using spray momentum flux measurements to understand the influence of diesel nozzle geometry on spray characteristics R. Payri , J.M. Garcia , F.J. Salvador , J. Gimeno 2005
- Hydraulic characterization of high-pressure gasoline multi-hole injector Balaji Mohan Jianguo Du , Jaeheon Sim , William L. Roberts Flow Measurement and Instrumentation 64 2018 133 141
- Desantes, José M., J. Javier López , Marcos Carreres , and Darío López-Pintor Characterization and prediction of the discharge coefficient of non-cavitating diesel injection nozzles Fuel 184 2016 371 381
- Dernotte , J. , Dec , J. , and Ji , C. Energy Distribution Analysis in Boosted HCCI-like / LTGC Engines - Understanding the Trade Offs to Maximize the Thermal Efficiency SAE Int. J. Engines 8 3 2015 10.4271/2015-01-0824
- Meek , G. , Williams , R. , Thornton , D. , Knapp , P. et al. F2E - Ultra High Pressure Distributed Pump Common Rail System SAE Technical Paper 2014-01-1440 2014 10.4271/2014-01-1440