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Fuel property impacts on gaseous and PM emissions from a multi-mode single-cylinder engine

Journal Article · · Fuel
The U.S. Department of Energy’s Co-Optima initiative has focused on improving fuel economy and vehicle performance while reducing emissions through the simultaneous development of emerging sustainable fuels with beneficial properties and advanced combustion strategies. A major thrust has been the development of advanced compression ignition (ACI) combustion strategies of gasoline range fuels in combination with spark-ignited (SI) combustion in a single engine capable of multi-mode operation to achieve high power density with enhanced part load efficiency. The aim of this study was to further the understanding of how emissions from both ACI and SI strategies operating on the same fuels in the same engine are impacted by different fuel properties. This investigation focused on particulate matter (PM) and gaseous hydrocarbon emissions from 6 different fuels across 3 different combustion modes on the same single-cylinder engine designed for multi-mode operation: SI combustion, partial fuel stratification (PFS), and spark-assisted compression ignition (SACI). In each of these modes, 3 different CA50 phasings were studied such that all 6 fuels could be studied at the same phasings. Three of the six different fuels used were specially formulated in a previous investigation to study the impact of fuel distillation and aromatic content while maintaining the research octane number (RON) and octane sensitivity. Additionally, neat isooctane and two ethanol containing fuels (RD5-87 and Co-Optima E30) were studied. Different fuel and phasing impacts on emissions were observed across the three combustion modes. Fuel properties were found to impact soot PM and particle number more than the CA50 phasing, while the phasing had more impact on NOx emissions. The NOx emissions were reduced in the PFS mode for all fuels compared to SI combustion, but the SACI combustion mode did not reduce NOx emissions. Although PFS produced low soot PM emissions like SI, total PM mass emissions were significantly higher due to large organic carbon (OC) PM mass contribution. Both PFS and SACI had greater particle number emission than SI operation with small nuclei mode particles dominating in PFS compared to large agglomeration particles in SACI.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Transportation Office. Bioenergy Technologies Office; USDOE Office of Energy Efficiency and Renewable Energy (EERE), Transportation Office. Vehicle Technologies Office
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1886505
Journal Information:
Fuel, Journal Name: Fuel Journal Issue: 1 Vol. 331; ISSN 0016-2361
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (56)

Impacts of Air-Fuel Stratification in ACI Combustion on Particulate Matter and Gaseous Emissions journal May 2019
Catalysts for automobile emission control journal January 1980
Kinetic modeling of the interactions between NO and hydrocarbons at high temperature journal October 2003
An experimental and kinetic calculation of the promotion effect of hydrocarbons on the NO-NO2 conversion in a flow reactor journal January 1998
Temperature dependence of NO to NO2 conversion by n-butane and n-pentane oxidation journal January 2002
Physical and chemical effects of low octane gasoline fuels on compression ignition combustion journal December 2016
Impact of ethanol blending into gasoline on aromatic compound evaporation and particle emissions from a gasoline direct injection engine journal September 2019
Gas- and particle-phase primary emissions from in-use, on-road gasoline and diesel vehicles journal May 2014
Measuring and predicting sooting tendencies of oxygenates, alkanes, alkenes, cycloalkanes, and aromatics on a unified scale journal April 2018
Comprehensive modeling study analyzing the insights of the NO–NO2 conversion process in current diesel engines journal August 2014
Effects of engine operating conditions on particle emissions of lean-burn gasoline direct-injection engine journal November 2016
Some advantages and challenges of running a Euro IV, V6 diesel engine on a gasoline fuel journal June 2013
The effects of distillation characteristics and aromatic content on low-load gasoline compression ignition (GCI) performance and soot emissions in a multi-cylinder engine journal September 2021
Production, fuel properties and combustion testing of an iso-olefins blendstock for modern vehicles journal February 2022
The effective density and fractal dimension of soot particles from premixed flames and motor vehicle exhaust journal October 2004
What fuel properties enable higher thermal efficiency in spark-ignited engines? journal January 2021
Advanced compression-ignition engines—understanding the in-cylinder processes journal January 2009
Sooting tendencies of co-optima test gasolines and their surrogates journal January 2019
Ability of Particulate Matter Index to describe sooting tendency of various gasoline formulations in a stratified-charge spark-ignition engine journal January 2021
Impact of Selected High-Performance Fuel Blends on Three-Way Catalyst Light Off under Synthetic Spark-Ignition Engine-Exhaust Conditions journal September 2020
Numerical Investigation into Effects of Fuel Physical Properties on GCI Engine Performance and Emissions journal September 2019
The Impact of Ethanol Fuel Blends on PM Emissions from a Light-Duty GDI Vehicle journal May 2012
Using a new inversion matrix for a fast-sizing spectrometer and a photo-acoustic instrument to determine suspended particulate mass over a transient cycle for light-duty vehicles journal October 2016
Elemental Carbon-Based Method for Monitoring Occupational Exposures to Particulate Diesel Exhaust journal January 1996
Particle measurement programme (PMP) light-duty inter-laboratory exercise: comparison of different particle number measurement systems journal July 2008
Correlation Between Speciated Hydrocarbon Emissions and Flame Ionization Detector Response for Gasoline/Alcohol Blends journal April 2011
Computational Fluid Dynamics Simulation of Gasoline Compression Ignition journal May 2015
Assessment of Residual Mass Estimation Methods for Cylinder Pressure Heat Release Analysis of HCCI Engines With Negative Valve Overlap conference February 2012
Impact of gasoline composition on particulate matter emissions from a direct-injection gasoline engine: Applicability of the particulate matter index journal June 2013
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 journal July 2016
Hydrocarbon impact on NO to NO2 conversion in a compression ignition engine under low-temperature combustion journal December 2017
A Historical Analysis of the Co-evolution of Gasoline Octane Number and Spark-Ignition Engines journal January 2016
Octane Index Applicability over the Pressure-Temperature Domain journal January 2021
Characterization of Pressure Waves in HCCI Combustion conference October 2002
New Heat Transfer Correlation for an HCCI Engine Derived from Measurements of Instantaneous Surface Heat Flux conference October 2004
A Study of a Gasoline-fueled Compression Ignition Engine ∼ Expansion of HCCI Operation Range Using SI Combustion as a Trigger of Compression Ignition ∼ conference April 2005
Nitrogen Oxide Production in a Diesel Engine Fueled by Natural Gas conference April 2005
Advantages of Fuels with High Resistance to Auto-ignition in Late-injection, Low-temperature, Compression Ignition Combustion conference October 2006
CFD-Based Optimization of a Diesel-fueled Free Piston Engine Prototype for Conventional and HCCI Combustion journal October 2008
Determination of Cycle Temperatures and Residual Gas Fraction for HCCI Negative Valve Overlap Operation journal April 2010
Cost and Fuel Economy Driven Aftertreatment Solutions -for Lean GDI- conference April 2010
Study of Regulated and Non-Regulated Emissions from Combustion of Gasoline, Alcohol Fuels and their Blends in a DI-SI Engine conference May 2010
Development of a Predictive Model for Gasoline Vehicle Particulate Matter Emissions journal August 2010
Ethanol Blend Effects On Direct Injection Spark-Ignition Gasoline Vehicle Particulate Matter Emissions journal August 2010
Bridging the Gap between HCCI and SI: Spark-Assisted Compression Ignition conference April 2011
Gasoline Partially Premixed Combustion in a Light Duty Engine at Low Load and Idle Operating Conditions conference April 2012
On the Nature of Particulate Emissions from DISI Engines at Cold-Fast-Idle journal April 2014
Filter-based control of particulate matter from a lean gasoline direct injection engine conference April 2016
Comparison of Hydrocarbon Measurement with FTIR and FID in a Dual Fuel Locomotive Engine conference April 2016
Characterization of Hydrocarbon Emissions from Gasoline Direct-Injection Compression Ignition Engine Operating on a Higher Reactivity Gasoline Fuel journal February 2017
Emission Performance of Low Cetane Naphtha as Drop-In Fuel on a Multi-Cylinder Heavy-Duty Diesel Engine and Aftertreatment System conference April 2017
Detection of Polar Compounds Condensed on Particulate Matter Using Capillary Electrophoresis-Mass Spectrometry conference April 2020
Parametric Study to Optimize Gasoline Compression Ignition Operation under Low Load Condition Using CFD conference April 2021
Numerical Investigation on NO to NO2 Conversion in a Low-Temperature Combustion CI Engine conference April 2021
A Universally Applicable Equation for the Instantaneous Heat Transfer Coefficient in the Internal Combustion Engine conference October 1967
Schlieren-Streak Measurements of Instantaneous Exhaust Gas Velocities from a Spark-Ignition Engine conference October 1974

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