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Title: Spray–Wall Interactions in a Small-Bore, Multicylinder Engine Operating With Reactivity-Controlled Compression Ignition

Abstract

Experimental work on reactivity-controlled compression ignition (RCCI) in a small-bore, multicylinder engine operating on premixed iso-octane, and direct-injected n-heptane has shown an unexpected combustion phasing advance at early injection timings, which has not been observed in large-bore engines operating under RCCI at similar conditions. In this study, computational fluid dynamics (CFD) simulations were performed to investigate whether spray–wall interactions could be responsible for this result. Comparison of the spray penetration, fuel film mass, and in-cylinder visualization of the spray from the CFD results to the experimentally measured combustion phasing and emissions provided compelling evidence of strong fuel impingement at injection timings earlier than -90 crank angle degrees (deg CA) after top dead center (aTDC), and transition from partial to full impingement between -65 and -90 deg CA aTDC. Finally, based on this evidence, explanations for the combustion phasing advance at early injection timings are proposed along with potential verification experiments.

Authors:
 [1];  [1];  [2];  [2]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Univ. of Wisconsin, Madison, WI (United States). Department of Mechanical Engineering
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Bioenergy Technologies Office (EE-3B); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
OSTI Identifier:
1474583
Grant/Contract Number:  
[AC05-00OR22725]
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Engineering for Gas Turbines and Power
Additional Journal Information:
[ Journal Volume: 140; Journal Issue: 9]; Journal ID: ISSN 0742-4795
Publisher:
ASME
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; Combustion; Fuels; Engines; Silicon-on-insulator; Computational fluid dynamics; Sprays; Compression; Ignition; Emissions; Cylinders

Citation Formats

Wissink, Martin L., Curran, Scott J., Kavuri, Chaitanya, and Kokjohn, Sage L. Spray–Wall Interactions in a Small-Bore, Multicylinder Engine Operating With Reactivity-Controlled Compression Ignition. United States: N. p., 2018. Web. doi:10.1115/1.4039817.
Wissink, Martin L., Curran, Scott J., Kavuri, Chaitanya, & Kokjohn, Sage L. Spray–Wall Interactions in a Small-Bore, Multicylinder Engine Operating With Reactivity-Controlled Compression Ignition. United States. doi:10.1115/1.4039817.
Wissink, Martin L., Curran, Scott J., Kavuri, Chaitanya, and Kokjohn, Sage L. Mon . "Spray–Wall Interactions in a Small-Bore, Multicylinder Engine Operating With Reactivity-Controlled Compression Ignition". United States. doi:10.1115/1.4039817. https://www.osti.gov/servlets/purl/1474583.
@article{osti_1474583,
title = {Spray–Wall Interactions in a Small-Bore, Multicylinder Engine Operating With Reactivity-Controlled Compression Ignition},
author = {Wissink, Martin L. and Curran, Scott J. and Kavuri, Chaitanya and Kokjohn, Sage L.},
abstractNote = {Experimental work on reactivity-controlled compression ignition (RCCI) in a small-bore, multicylinder engine operating on premixed iso-octane, and direct-injected n-heptane has shown an unexpected combustion phasing advance at early injection timings, which has not been observed in large-bore engines operating under RCCI at similar conditions. In this study, computational fluid dynamics (CFD) simulations were performed to investigate whether spray–wall interactions could be responsible for this result. Comparison of the spray penetration, fuel film mass, and in-cylinder visualization of the spray from the CFD results to the experimentally measured combustion phasing and emissions provided compelling evidence of strong fuel impingement at injection timings earlier than -90 crank angle degrees (deg CA) after top dead center (aTDC), and transition from partial to full impingement between -65 and -90 deg CA aTDC. Finally, based on this evidence, explanations for the combustion phasing advance at early injection timings are proposed along with potential verification experiments.},
doi = {10.1115/1.4039817},
journal = {Journal of Engineering for Gas Turbines and Power},
number = [9],
volume = [140],
place = {United States},
year = {2018},
month = {7}
}

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Works referenced in this record:

Effects of the direct-injected fuel’s physical and chemical properties on dual-fuel combustion
journal, November 2017


A comparison of Reactivity Controlled Compression Ignition (RCCI) and Gasoline Compression Ignition (GCI) strategies at high load, low speed conditions
journal, November 2016


The Effects of Charge Preparation, Fuel Stratification, and Premixed Fuel Chemistry on Reactivity Controlled Compression Ignition (RCCI) Combustion
journal, February 2017

  • DelVescovo, Dan; Kokjohn, Sage; Reitz, Rolf
  • SAE International Journal of Engines, Vol. 10, Issue 4
  • DOI: 10.4271/2017-01-0773

Development of an n-heptane-n-butanol-PAH mechanism and its application for combustion and soot prediction
journal, March 2013


Effect of Premixed Fuel Preparation for Partially Premixed Combustion With a Low Octane Gasoline on a Light-Duty Multicylinder Compression Ignition Engine
journal, November 2015

  • Dempsey, Adam B.; Curran, Scott; Wagner, Robert
  • Journal of Engineering for Gas Turbines and Power, Vol. 137, Issue 11
  • DOI: 10.1115/1.4030281

An Analytical Jacobian Approach to Sparse Reaction Kinetics for Computationally Efficient Combustion Modeling with Large Reaction Mechanisms
journal, July 2012

  • Perini, Federico; Galligani, Emanuele; Reitz, Rolf D.
  • Energy & Fuels, Vol. 26, Issue 8
  • DOI: 10.1021/ef300747n

Reduction of Numerical Parameter Dependencies in Diesel Spray Models
journal, April 2008

  • Abani, Neerav; Munnannur, Achuth; Reitz, Rolf D.
  • Journal of Engineering for Gas Turbines and Power, Vol. 130, Issue 3
  • DOI: 10.1115/1.2830867

Blending the benefits of reactivity controlled compression ignition and gasoline compression ignition combustion using an adaptive fuel injection system
journal, July 2016

  • Kavuri, Chaitanya; Kokjohn, Sage L.; Klos, David T.
  • International Journal of Engine Research, Vol. 17, Issue 8
  • DOI: 10.1177/1468087415615255

The Contribution of Lubricant to the Formation of Particulate Matter with Reactivity Controlled Compression Ignition in Light-Duty Diesel Engines
journal, December 2014

  • Storey, John; Curran, Scott; Dempsey, Adam
  • Emission Control Science and Technology, Vol. 1, Issue 1
  • DOI: 10.1007/s40825-014-0007-2

Fuel reactivity controlled compression ignition (RCCI): a pathway to controlled high-efficiency clean combustion
journal, June 2011

  • Kokjohn, S. L.; Hanson, R. M.; Splitter, D. A.
  • International Journal of Engine Research, Vol. 12, Issue 3
  • DOI: 10.1177/1468087411401548

Turbulence Modeling of Internal Combustion Engines Using RNG κ-ε Models
journal, January 1995


Second Generation GDCI Multi-Cylinder Engine for High Fuel Efficiency and US Tier 3 Emissions
journal, April 2016

  • Sellnau, Mark; Foster, Matthew; Moore, Wayne
  • SAE International Journal of Engines, Vol. 9, Issue 2
  • DOI: 10.4271/2016-01-0760

Review of high efficiency and clean reactivity controlled compression ignition (RCCI) combustion in internal combustion engines
journal, February 2015


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

  • Dempsey, Adam B.; Curran, Scott J.; Wagner, Robert M.
  • International Journal of Engine Research, Vol. 17, Issue 8
  • DOI: 10.1177/1468087415621805

High Load (21 Bar IMEP) Dual Fuel RCCI Combustion Using Dual Direct Injection
journal, May 2014

  • Lim, Jae Hyung; Reitz, Rolf D.
  • Journal of Engineering for Gas Turbines and Power, Vol. 136, Issue 10
  • DOI: 10.1115/1.4027361