Towards a Detailed Soot Model for Internal Combustion Engines

A computationally cheap engine simulation code is described which includes a detailed model for soot formation over the course of several engine cycles. In addition to soot mass, number density, volume fraction and surface area the soot model includes the morphology and chemical composition of soot aggregates. It is a stochastic reactor model which uses detailed chemistry and includes sub-models for turbulent mixing and heat transfer. Experiments were carried out on a single cylinder n-heptane fuelled homogeneous charge compression ignition engine, operated at a rich equivalence ratio of 1.93. Particle-laden in-cylinder gases were extracted using snatch sampling. Graphs showing experimental in-cylinder and simulated in-cylinder size distributions are presented and shown to agree. The aggregates recirculated in trapped residual gases are recognised as a prominent feature.

  • Authors:
    • MOSBACH, S
    • CELINK, M
    • Raj, A
    • Kraft, M
    • ZHANG, H R
    • Kubo, S
    • KIM, K O
  • Publication Date: 2009-6

Language

  • English

Media Info

  • Pagination: 54-57
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 01147007
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Dec 24 2009 8:37AM