Non-Uniform Cylinder-to-Cylinder Combustion for Ammonia Generation in a New Passive SCR System

Chen, Pingen; Lin, Qinghua; Prikhodko, Vitaly; Parks II, James

doi:10.23919/ACC.2018.8431540

Title: Non-Uniform Cylinder-to-Cylinder Combustion for Ammonia Generation in a New Passive SCR System

Abstract

Lean burn gasoline engine is a promising technology for reducing the fuel consumption by passenger cars. However, cost-effective NOx emissions control for lean burn gasoline engines remains a great challenge for the commercialization of lean burn gasoline engines in the U. S. market. To address this issue, passive selective catalytic reduction (SCR), which utilizes a close-coupled three-way catalyst (TWC) as an on-board device for ammonia (NH3) production during rich engine operation, has attracted much attention in the past several years. The main purpose of this study is to reduce the cost of ammonia generation for a passive SCR system by proposing a new passive SCR system architecture and an innovative non-uniform cylinder-to-cylinder combustion (NUCCC) strategy. The new passive SCR system that consists of a two-stage TWC and a TWC bypass, together with the optimization of NUCCC strategy, can potentially enable more efficient engine combustion and more cost-effective ammonia production. Optimization results based on the experimental data from a physical engine platform, demonstrate that the proposed new passive SCR system coupled with the NUCCC strategy, can reduce the ammonia specific fuel consumption (ASFC) by up to 29.8%. Such a novel engine combustion strategy and innovative aftertreatment system can be very instrumentalmore »« less

Authors:

Chen, Pingen ^[1]; Lin, Qinghua ^[1];

^[2];

^[2]

Tennessee Technological University (TTU)
ORNL

Publication Date:: Fri Jun 01 00:00:00 EDT 2018

Research Org.:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE Office of Energy Efficiency and Renewable Energy (EERE)

OSTI Identifier:: 1468003

DOE Contract Number:: AC05-00OR22725

Resource Type:: Conference

Resource Relation:: Conference: 2018 Annual American Control Conference (ACC) - Milwaukee, Wisconsin, United States of America - 6/27/2018 4:00:00 AM-6/29/2018 4:00:00 AM

Country of Publication:: United States

Language:: English

Citation Formats


                    Chen, Pingen, Lin, Qinghua, Prikhodko, Vitaly, and Parks II, James. Non-Uniform Cylinder-to-Cylinder Combustion for Ammonia Generation in a New Passive SCR System.  United States: N. p., 2018. 
        Web.  doi:10.23919/ACC.2018.8431540.

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                    Chen, Pingen, Lin, Qinghua, Prikhodko, Vitaly, & Parks II, James. Non-Uniform Cylinder-to-Cylinder Combustion for Ammonia Generation in a New Passive SCR System.  United States.  https://doi.org/10.23919/ACC.2018.8431540

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                    Chen, Pingen, Lin, Qinghua, Prikhodko, Vitaly, and Parks II, James. 2018.  
        "Non-Uniform Cylinder-to-Cylinder Combustion for Ammonia Generation in a New Passive SCR System".  United States.  https://doi.org/10.23919/ACC.2018.8431540.  https://www.osti.gov/servlets/purl/1468003.

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@article{osti_1468003,

  title        = {Non-Uniform Cylinder-to-Cylinder Combustion for Ammonia Generation in a New Passive SCR System},

  author       = {Chen, Pingen and Lin, Qinghua and Prikhodko, Vitaly and Parks II, James},

  abstractNote = {Lean burn gasoline engine is a promising technology for reducing the fuel consumption by passenger cars. However, cost-effective NOx emissions control for lean burn gasoline engines remains a great challenge for the commercialization of lean burn gasoline engines in the U. S. market. To address this issue, passive selective catalytic reduction (SCR), which utilizes a close-coupled three-way catalyst (TWC) as an on-board device for ammonia (NH3) production during rich engine operation, has attracted much attention in the past several years. The main purpose of this study is to reduce the cost of ammonia generation for a passive SCR system by proposing a new passive SCR system architecture and an innovative non-uniform cylinder-to-cylinder combustion (NUCCC) strategy. The new passive SCR system that consists of a two-stage TWC and a TWC bypass, together with the optimization of NUCCC strategy, can potentially enable more efficient engine combustion and more cost-effective ammonia production. Optimization results based on the experimental data from a physical engine platform, demonstrate that the proposed new passive SCR system coupled with the NUCCC strategy, can reduce the ammonia specific fuel consumption (ASFC) by up to 29.8%. Such a novel engine combustion strategy and innovative aftertreatment system can be very instrumental in significantly reducing the fuel penalty associated with NOx emission control for lean-burn engines in the future.},

  doi          = {10.23919/ACC.2018.8431540},

  url          = {https://www.osti.gov/biblio/1468003},
  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Fri Jun 01 00:00:00 EDT 2018},

  month        = {Fri Jun 01 00:00:00 EDT 2018}

}

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Works referenced in this record:

Passive Ammonia SCR System for Lean-burn SIDI Engines
journal, April 2010

Li, Wei; Perry, Kevin L.; Narayanaswamy, Kushal
SAE International Journal of Fuels and Lubricants, Vol. 3, Issue 1
https://doi.org/10.4271/2010-01-0366

Lean Gasoline Engine Reductant Chemistry During Lean NOx Trap Regeneration
journal, August 2010

Parks, James E.; Prikhodko, Vitaly; Partridge, William
SAE International Journal of Fuels and Lubricants, Vol. 3, Issue 2
https://doi.org/10.4271/2010-01-2267

Passive-ammonia selective catalytic reduction (SCR): Understanding NH3 formation over close-coupled three way catalysts (TWC)
journal, August 2014

DiGiulio, Christopher D.; Pihl, Josh A.; Ii, James E. Parks
Catalysis Today, Vol. 231
https://doi.org/10.1016/j.cattod.2014.01.027

Ammonia Generation over TWC for Passive SCR NO _X Control for Lean Gasoline Engines
journal, April 2014

Prikhodko, Vitaly Y.; Parks, James E.; Pihl, Josh A.
SAE International Journal of Engines, Vol. 7, Issue 3
https://doi.org/10.4271/2014-01-1505

Model Predictive Control of a Lean-Burn Gasoline Engine Coupled With a Passive Selective Catalytic Reduction System
conference, November 2017

Lin, Qinghua; Chen, Pingen; Prikhodko, Vitaly Y.
ASME 2017 Dynamic Systems and Control Conference, Volume 3: Vibration in Mechanical Systems; Modeling and Validation; Dynamic Systems and Control Education; Vibrations and Control of Systems; Modeling and Estimation for Vehicle Safety and Integrity; Modeling and Control of IC Engines and Aftertreatment Systems; Unmanned Aerial Vehicles (UAVs) and Their Applications; Dynamics and Control of Renewable Energy Systems; Energy Harvesting; Control of Smart Buildings and Microgrids; Energy Systems
https://doi.org/10.1115/DSCC2017-5348

Transient Responses of Various Ammonia Formation Catalyst Configurations for Passive SCR in Lean-Burning Gasoline Engines under Various Real Engine Conditions.
conference, April 2016

Doornbos, Gerben; Hemdal, Stina; Dahl, Daniel
SAE 2016 World Congress and Exhibition, SAE Technical Paper Series
https://doi.org/10.4271/2016-01-0935

European Lean Gasoline Direct Injection Vehicle Benchmark
conference, April 2011

Chambon, Paul; Huff, Shean; Norman, Kevin
SAE 2011 World Congress & Exhibition, SAE Technical Paper Series
https://doi.org/10.4271/2011-01-1218

Review of Vehicular Emissions Trends
journal, January 2015

Johnson, Timothy V.
SAE International Journal of Engines, Vol. 8, Issue 3
https://doi.org/10.4271/2015-01-0993

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Similar Records

Title: Non-Uniform Cylinder-to-Cylinder Combustion for Ammonia Generation in a New Passive SCR System

Abstract

Citation Formats

Passive Ammonia SCR System for Lean-burn SIDI Engines journal, April 2010

Lean Gasoline Engine Reductant Chemistry During Lean NOx Trap Regeneration journal, August 2010

Passive-ammonia selective catalytic reduction (SCR): Understanding NH3 formation over close-coupled three way catalysts (TWC) journal, August 2014

Ammonia Generation over TWC for Passive SCR NO X Control for Lean Gasoline Engines journal, April 2014

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European Lean Gasoline Direct Injection Vehicle Benchmark conference, April 2011

Review of Vehicular Emissions Trends journal, January 2015

Passive Ammonia SCR System for Lean-burn SIDI Engines
journal, April 2010

Lean Gasoline Engine Reductant Chemistry During Lean NOx Trap Regeneration
journal, August 2010

Passive-ammonia selective catalytic reduction (SCR): Understanding NH3 formation over close-coupled three way catalysts (TWC)
journal, August 2014

Ammonia Generation over TWC for Passive SCR NO _X Control for Lean Gasoline Engines
journal, April 2014

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conference, April 2016

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conference, April 2011

Review of Vehicular Emissions Trends
journal, January 2015