Effects of reformed fuel on dual-fuel combustion particulate morphology

Flavio Dal Forno Chuahy, Tyler Strickland, Nicholas Ryan Walker, Sage L. Kokjohn

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Advancements in catalytic reforming have demonstrated the ability to generate syngas (a mixture of CO and hydrogen) from a single hydrocarbon stream. This syngas mixture can then be used to replace diesel fuel and enable dual-fuel combustion strategies. The role of port-fuel injected syngas, composed of equal parts hydrogen and carbon monoxide by volume, was investigated experimentally for soot reduction benefits under diesel pilot ignition and reactivity controlled compression ignition strategies. Particle size distribution measurements were made with a scanning mobility particle sizer and condensation particle counter for different levels of syngas substitution. To explain the experimental results, computational fluid dynamics simulations utilizing a detailed stochastic soot model were used to validate and initialize additional simulations that isolate mixing and chemistry effects. Based on these simulations, the influence of adding syngas on soot particle size and quantity is discussed.

Original languageEnglish
Pages (from-to)777-790
Number of pages14
JournalInternational Journal of Engine Research
Volume22
Issue number3
DOIs
StatePublished - Mar 2021
Externally publishedYes

Funding

https://orcid.org/0000-0002-9828-0201 Dal Forno Chuahy Flavio Strickland Tyler Walker Nicholas Ryan Kokjohn Sage L Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, WI, USA Sage L Kokjohn, Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA. Email: [email protected] 10 2019 1468087419879782 18 7 2019 10 9 2019 © IMechE 2019 2019 Institution of Mechanical Engineers Advancements in catalytic reforming have demonstrated the ability to generate syngas (a mixture of CO and hydrogen) from a single hydrocarbon stream. This syngas mixture can then be used to replace diesel fuel and enable dual-fuel combustion strategies. The role of port-fuel injected syngas, composed of equal parts hydrogen and carbon monoxide by volume, was investigated experimentally for soot reduction benefits under diesel pilot ignition and reactivity controlled compression ignition strategies. Particle size distribution measurements were made with a scanning mobility particle sizer and condensation particle counter for different levels of syngas substitution. To explain the experimental results, computational fluid dynamics simulations utilizing a detailed stochastic soot model were used to validate and initialize additional simulations that isolate mixing and chemistry effects. Based on these simulations, the influence of adding syngas on soot particle size and quantity is discussed. Dual fuel syngas reforming soot particulate Department of Energy, Office of Energy Efficiency and Renewable Energy (EERE) and the Department of Defense, Tank and Automotive Research, Development, and Engineering Center (TARDEC) DE-EE0007300 edited-state corrected-proof Declaration of conflicting interests The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article. Funding The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This material is based upon work supported by the Department of Energy, Office of Energy Efficiency and Renewable Energy (EERE), and the Department of Defense, Tank and Automotive Research, Development, and Engineering Center (TARDEC) under Award Number DE-EE0007300. ORCID iD Flavio Dal Forno Chuahy https://orcid.org/0000-0002-9828-0201

Keywords

  • Dual fuel
  • particulate
  • reforming
  • soot
  • syngas

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