Reactivity-controlled compression ignition drive cycle emissions and fuel economy estimations using vehicle system simulations
Abstract
In-cylinder blending of gasoline and diesel to achieve reactivity-controlled compression ignition has been shown to reduce NOX and soot emissions while maintaining or improving brake thermal efficiency as compared with conventional diesel combustion. The reactivity-controlled compression ignition concept has an advantage over many advanced combustion strategies in that the fuel reactivity can be tailored to the engine speed and load, allowing stable low-temperature combustion to be extended over more of the light-duty drive cycle load range. In this paper, a multi-mode reactivity-controlled compression ignition strategy is employed where the engine switches from reactivity-controlled compression ignition to conventional diesel combustion when speed and load demand are outside of the experimentally determined reactivity-controlled compression ignition range. The potential for reactivity-controlled compression ignition to reduce drive cycle fuel economy and emissions is not clearly understood and is explored here by simulating the fuel economy and emissions for a multi-mode reactivity-controlled compression ignition–enabled vehicle operating over a variety of US drive cycles using experimental engine maps for multi-mode reactivity-controlled compression ignition, conventional diesel combustion, and a 2009 port-fuel injected gasoline engine. Drive cycle simulations are completed assuming a conventional mid-size passenger vehicle with an automatic transmission. Multi-mode reactivity-controlled compression ignition fuel economy simulation resultsmore »
- Authors:
-
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
- OSTI Identifier:
- 1286695
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- International Journal of Engine Research
- Additional Journal Information:
- Journal Volume: 16; Journal Issue: 8; Journal ID: ISSN 1468-0874
- Publisher:
- SAGE
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 33 ADVANCED PROPULSION SYSTEMS; 29 ENERGY PLANNING, POLICY, AND ECONOMY; reactivity-controlled compression ignition; dual-fuel; efficiency; low-temperature combustion
Citation Formats
Curran, Scott J., Gao, Zhiming, and Wagner, Robert M. Reactivity-controlled compression ignition drive cycle emissions and fuel economy estimations using vehicle system simulations. United States: N. p., 2014.
Web. doi:10.1177/1468087414562258.
Curran, Scott J., Gao, Zhiming, & Wagner, Robert M. Reactivity-controlled compression ignition drive cycle emissions and fuel economy estimations using vehicle system simulations. United States. https://doi.org/10.1177/1468087414562258
Curran, Scott J., Gao, Zhiming, and Wagner, Robert M. Mon .
"Reactivity-controlled compression ignition drive cycle emissions and fuel economy estimations using vehicle system simulations". United States. https://doi.org/10.1177/1468087414562258. https://www.osti.gov/servlets/purl/1286695.
@article{osti_1286695,
title = {Reactivity-controlled compression ignition drive cycle emissions and fuel economy estimations using vehicle system simulations},
author = {Curran, Scott J. and Gao, Zhiming and Wagner, Robert M.},
abstractNote = {In-cylinder blending of gasoline and diesel to achieve reactivity-controlled compression ignition has been shown to reduce NOX and soot emissions while maintaining or improving brake thermal efficiency as compared with conventional diesel combustion. The reactivity-controlled compression ignition concept has an advantage over many advanced combustion strategies in that the fuel reactivity can be tailored to the engine speed and load, allowing stable low-temperature combustion to be extended over more of the light-duty drive cycle load range. In this paper, a multi-mode reactivity-controlled compression ignition strategy is employed where the engine switches from reactivity-controlled compression ignition to conventional diesel combustion when speed and load demand are outside of the experimentally determined reactivity-controlled compression ignition range. The potential for reactivity-controlled compression ignition to reduce drive cycle fuel economy and emissions is not clearly understood and is explored here by simulating the fuel economy and emissions for a multi-mode reactivity-controlled compression ignition–enabled vehicle operating over a variety of US drive cycles using experimental engine maps for multi-mode reactivity-controlled compression ignition, conventional diesel combustion, and a 2009 port-fuel injected gasoline engine. Drive cycle simulations are completed assuming a conventional mid-size passenger vehicle with an automatic transmission. Multi-mode reactivity-controlled compression ignition fuel economy simulation results are compared with the same vehicle powered by a representative 2009 port-fuel injected gasoline engine over multiple drive cycles. Finally, engine-out drive cycle emissions are compared with conventional diesel combustion, and observations regarding relative gasoline and diesel tank sizes needed for the various drive cycles are also summarized.},
doi = {10.1177/1468087414562258},
journal = {International Journal of Engine Research},
number = 8,
volume = 16,
place = {United States},
year = {Mon Dec 22 00:00:00 EST 2014},
month = {Mon Dec 22 00:00:00 EST 2014}
}
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Works referenced in this record:
Particulate Matter Characterization of Reactivity Controlled Compression Ignition (RCCI) on a Light Duty Engine
conference, April 2014
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- SAE 2014 World Congress & Exhibition, SAE Technical Paper Series
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Simulating the impact of premixed charge compression ignition on light-duty diesel fuel economy and emissions of particulates and NO x
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Works referencing / citing this record:
Progress and recent trends in reactivity-controlled compression ignition engines
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- Paykani, Amin; Kakaee, Amir-Hasan; Rahnama, Pourya
- International Journal of Engine Research, Vol. 17, Issue 5
Evolution and current understanding of physicochemical characterization of particulate matter from reactivity controlled compression ignition combustion on a multicylinder light-duty engine
journal, August 2016
- Storey, John ME; Curran, Scott J.; Lewis, Samuel A.
- International Journal of Engine Research, Vol. 18, Issue 5-6
Activating low-temperature diesel oxidation by single-atom Pt on TiO2 nanowire array
journal, February 2020
- Hoang, Son; Guo, Yanbing; Binder, Andrew J.
- Nature Communications, Vol. 11, Issue 1