This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Analysis of the Effects of Injection Pressure Variation in Gasoline Partially Premixed Combustion
Technical Paper
2021-01-0517
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Event:
SAE WCX Digital Summit
Language:
English
Abstract
Compression-ignited engines are still considered the most efficient and reliable technology for automotive applications. However, current and future emission regulations, which severely limit the production of NOx, particulate matter and CO2, hinder the use of diesel-like fuels. As a matter of fact, the spontaneous ignition of directly-injected Diesel leads to a combustion process that is heterogeneous by nature, therefore characterized by the simultaneous production of particulate matter and NOx. In this scenario, several innovative combustion techniques have been investigated over the past years, the goal being to benefit from the high thermal efficiency of compression-ignited engines, which results primarily from high Compression Ratio and lean and unthrottled operation, while simultaneously mitigating the amount of pollutant emissions. To achieve these goals, gasoline Partially Premixed Combustion, an innovative combustion methodology mainly characterized by the high-pressure direct injection of gasoline in a CI engine, proved to be very promising. This work analyzes the combustion process produced by a multi-jet pattern which introduces gasoline in a light-duty compression-ignited engine installed in a test cell. The engine has been modified to operate in stable operating conditions over its whole operating range. Since this combustion methodology is very sensitive to cylinder thermal conditions, the stability of the optimized multi-jet pattern has been guaranteed directly by controlling the intake conditions, i.e. intake temperature and pressure. Experimental tests have been carried out at very different loads to highlight how the control parameters of interest affect the combustion process. Several tests, run in stable conditions (optimized injection pattern), have been compared to quantify the impact of injection pressure variations on combustion efficiency and emissions. The obtained results demonstrate that the optimal management of the injection pressure is a key parameter for combustion optimization and for the limitation of combustion impulsiveness, necessary to comply with the reliability limitations over the whole engine operating range.
Recommended Content
Authors
Topic
Citation
Stola, F., Ravaglioli, V., Silvagni, G., Ponti, F. et al., "Analysis of the Effects of Injection Pressure Variation in Gasoline Partially Premixed Combustion," SAE Technical Paper 2021-01-0517, 2021, https://doi.org/10.4271/2021-01-0517.Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| Unnamed Dataset 2 | ||
| Unnamed Dataset 3 |
Also In
References
- Torregrosa , A.J. , Broatch Jacobi , J.A. , García Martínez , A. , and Monico Muñoz , L.F. Sensitivity of Combustion Noise and NOx and Soot Emissions to Pilot Injection in PCCI Diesel Engines Applied Energy. 104 149 157 2013 https://doi.org/10.1016/j.apenergy.2012.11.040
- Kolbeck , A.F. Closed Loop Combustion Control - Enabler of Future Refined Engine Performance Regarding Power, Efficiency, Emissions & NVH under Stringent Governmental Regulations SAE Technical Paper 2011-24-0171 2011 https://doi.org/10.4271/2011-24-0171
- Curran , S. , Hanson , R. , Wagner , R. , and Reitz , R. Efficiency and Emissions Mapping of RCCI in a Light-Duty Diesel Engine SAE Technical Paper 2013-01-0289 2013 https://doi.org/10.4271/2013-01-0289
- Wissink , M. , and Reitz , R. Direct Dual Fuel Stratification, a Path to Combine the Benefits of RCCI and PPC SAE Int. J. Engines 8 2 878 889 2015 https://doi.org/10.4271/2015-01-0856
- Li , C. , Xu , L. , Bai , X.-S. , Tunestal , P. et al. Effect of Piston Geometry on Stratification Formation in the Transition from HCCI to PPC SAE Technical Paper 2018-01-1800 2018 https://doi.org/10.4271/2018-01-1800
- Dempsey , A.B. , Curran , S.J. , and Wagner , R.M. A Perspective on the Range of Gasoline Compression Ignition Combustion Strategies for High Engine Efficiency and low NOx and Soot Emissions: Effects of In-Cylinder Fuel Stratification International Journal of Engine Research 17 8 897 917 2016 https://doi.org/10.1177/1468087415621805
- Kimura , S. , Aoki , O. , Kitahara , Y. , and Aiyoshizawa , E. Ultra-Clean Combustion Technology Combining a Low-Temperature and Premixed Combustion Concept for Meeting Future Emission Standards SAE Technical Paper 2001-01-0200 2001 https://doi.org/10.4271/2001-01-0200
- Belgiorno , G. , Dimitrakopoulos , N. Blasio , G. , Beatrice , C. , Tunestål , P. , Tunér , M. Effect of the Engine Calibration Parameters on Gasoline Partially Premixed Combustion Performance and Emissions Compared to Conventional Diesel Combustion in a Light-Duty Euro 6 Engine Applied Energy 228 2018 2221 2234 10.1016/j.apenergy.2018.07.098
- Belgiorno , G. , Dimitrakopoulos , N. , Di Blasio , G. , Beatrice , C. et al. Parametric Analysis of the Effect of Pilot Quantity, Combustion Phasing and EGR on Efficiencies of a Gasoline PPC Light-Duty Engine SAE Technical Paper 2017-24-0084 2017 https://doi.org/10.4271/2017-24-0084
- Cracknell , R. , Bastaert , D. , Houille , S. , Châtelain , J. et al. Assessing the Efficiency of a New Gasoline Compression Ignition (GCI) Concept SAE Technical Paper 2020-01-2068 2020 https://doi.org/10.4271/2020-01-2068
- Leermakers , C. , Somers , L. , and Johansson , B. Combustion Phasing Controllability with Dual Fuel Injection Timings SAE Technical Paper 2012-01-1575 2012 https://doi.org/10.4271/2012-01-1575
- Ravaglioli , V. , Ponti , F. , De Cesare , M. , Stola , F. et al. Combustion Indexes for Innovative Combustion Control SAE Int. J. Engines 10 5 2371 2381 2017 https://doi.org/10.4271/2017-24-0079
- Masurier , J. , Waqas , M. , Sarathy , M. , and Johansson , B. Autoignition of Isooctane Beyond RON and MON Conditions SAE Int. J. Fuels Lubr. 11 4 459 468 2018 https://doi.org/10.4271/2018-01-1254
- Gentz , G. , Dernotte , J. , Ji , C. , and Dec , J. Spark Assist for CA50 Control and Improved Robustness in a Premixed LTGC Engine Effects of Equivalence Ratio and Intake Boost SAE Technical Paper 2018-01-1252 2018 https://doi.org/10.4271/2018-01-1252
- An , Y. , Mubarak Ali , M.J. , Vallinayagam , R. , AlRamadan , A. et al. Compression Ignition of Low Octane Gasoline under Partially Premixed Combustion Mode SAE Technical Paper 2018-01-1797 2018 https://doi.org/10.4271/2018-01-1797
- Nakai , E. , Goto , T. , Ezumi , K. , Tsumura , Y. , Endou , K. , Kanda , Y. , Urushihara , T. , Sueoka , M. , Hitomi , M. MAZDA SKYACTIV-X 2.0L Gasoline Engine 28th Aachen Colloquium Automobile and Engine Technology 2019
- Sellnau , M. , Foster , M. , Moore , W. , Sinnamon , J. et al. Pathway to 50% Brake Thermal Efficiency Using Gasoline Direct Injection Compression Ignition SAE Technical Paper 2019-01-1154 2019 https://doi.org/10.4271/2019-01-1154
- Sellnau , M. , Cho , K. , Zhang , Y. , Cleary , D. Pathway to 50 % Brake Thermal Efficiency Using Gasoline Direct Injection Compression 28th Aachen Colloquium Automobile and Engine Technology 2019
- Matsuura , K. , and Iida , N. Effect of Temperature-Pressure Time History on Auto-Ignition Delay of Air-Fuel Mixture SAE Technical Paper 2018-01-1799 2018 https://doi.org/10.4271/2018-01-1799
- Buri , S. , Kubach , H. , and Spicher , U. Effects of Increased Injection Pressures of up to 1000 Bar - Opportunities in Stratified Operation in a Direct-Injection Spark-Ignition Engine International Journal of Engine Research 11 6 473 484 2010 https://doi.org/10.1243/14680874JER608
- Medina , M. , Fatouraie , M. , and Wooldridge , M. High-Speed Imaging Studies of Gasoline Fuel Sprays at Fuel Injection Pressures from 300 to 1500 Bar SAE Technical Paper 2018-01-0294 2018 https://doi.org/10.4271/2018-01-0294
- Ravaglioli , V. , Ponti , F. Cesare , M. Investigation of Gasoline Compression Ignition for Combustion Control ASME Internal Combustion Engine Division Fall Technical Conference 2019
- Montanaro , A. , Allocca , L. , and Meccariello , G. Effects of Ultra-High Injection Pressures up to 100 Mpa on Gasoline Spray Morphology SAE Technical Paper 2020-01-0320 2020 https://doi.org/10.4271/2020-01-0320
- Zhang , J. , Tang , M. , Atkinson , W. , Schmidt , H. et al. Experimental Investigation of the Compression Ignition Process of High Reactivity Gasoline Fuels and E10 Certification Gasoline using a High-Pressure Direct Injection Gasoline Injector SAE Technical Paper 2020-01-0323 2020 https://doi.org/10.4271/2020-01-0323
- Traver , M. , Pei , Y. , Tzanetakis , T. , Torelli , R. et al. Investigation and Simulation of Gasoline in a Diesel Fuel Injector for Gasoline Compression Ignition Applications Tschöke , H. , Marohn , R. 11. Tagung Einspritzung und Kraftstoffe Wiesbaden Proceedings. Springer Vieweg 2019 2018
- Kaminaga , T. , Yamaguchi , K. , Ratnak , S. , Kusaka , J. et al. A Study on Combustion Characteristics of a High Compression Ratio SI Engine with High Pressure Gasoline Injection SAE Technical Paper 2019-24-0106 2019 https://doi.org/10.4271/2019-24-0106
- Lehnert , B. , Conrad , C. , and Wensing , M. GDI Sprays with up to 200 Mpa Fuel Pressure and Comparison of Diesel-like and Gasoline-Like Injector Designs SAE Technical Paper 2020-01-2104 2020 https://doi.org/10.4271/2020-01-2104
- Ravaglioli , V. , Ponti , F. , and De Cesare , M. Investigation of Gasoline Compression Ignition for Combustion Control ASME J. Eng. Gas Turbines Power. September 2020 142 9 091003 https://doi.org/10.1115/1.4048055