Sensitivity Analysis of Partially Premixed Combustion (PPC) for Control Purposes

Lianhao Yin, Gabriel Ingesson, Sam Shamun, Per Tunestal, Rolf Johansson, Bengt Johansson

Research output: Contribution to journalConference articlepeer-review

10 Scopus citations

Abstract

Partially Premixed Combustion (PPC) is a promising advanced combustion mode for future engines. In order to investigate the sensitivity of PPC to exhaust gas recirculation (EGR) rate, intake gas temperature, intake gas pressure, and injection timing, these parameters were swept individually at three different loads in a single cylinder diesel engine with gasoline-like fuel. A factor of sensitivity was defined to indicate the combustion's controllability and sensitivity to inlet gas parameters and injection timings. Through analysis of experimental results, a control window of inlet gas parameters and injection timings is obtained at different loads in PPC mode from 5 bar to 10 bar IMEPg load at 1200 rpm. To further study the PPC controllability with injection timing, main injection timing was adjusted to sustain steady combustion phasing subject to perturbation of inlet gas state. Experimental results show that the main injection timing can resist the interference of intake parameters and maintain constant combustion phasing. Injection timing control is a promising approach to maintain high engine efficiency and low emission levels during transient operation.

Original languageEnglish (US)
JournalSAE Technical Papers
Volume2015-April
Issue numberApril
DOIs
StatePublished - Apr 14 2015
EventSAE 2015 World Congress and Exhibition - Detroit, United States
Duration: Apr 21 2015Apr 23 2015

ASJC Scopus subject areas

  • Automotive Engineering
  • Safety, Risk, Reliability and Quality
  • Pollution
  • Industrial and Manufacturing Engineering

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