Miniature free-piston homogeneous charge compression ignition engine-compressor concept-Part II: Modeling HCCI combustion in small scales with detailed homogeneous gas phase chemical kinetics

H. T. Aichlmayr, D. B. Kittelson, M. R. Zachariah

Research output: Contribution to journalArticlepeer-review

66 Scopus citations

Abstract

Operational maps for crankshaft-equipped miniature homogeneous charge compression ignition engines are established using performance estimation, detailed chemical kinetics, and diffusion models for heat transfer and radical loss. In this study, radical loss was found to be insignificant. In contrast, heat transfer was found to be increasingly significant for 10, 1, and 0.1. W engines, respectively. Also, temperature-pressure trajectories and ignition delay time maps are used to explore relationships between engine operational parameters and HCCI. Lastly, effects of engine operating conditions and design on the indicated fuel conversion efficiency are investigated.

Original languageEnglish (US)
Pages (from-to)4173-4186
Number of pages14
JournalChemical Engineering Science
Volume57
Issue number19
DOIs
StatePublished - Oct 1 2002

Bibliographical note

Funding Information:
This project was sponsored by Honeywell International under DARPA contract no. F30602-99-C-0200. The authors would also like to acknowledge the support of the Minnesota Supercomputing Institute.

Publisher Copyright:
© 2002.

Copyright:
Copyright 2015 Elsevier B.V., All rights reserved.

Keywords

  • Explosions.
  • Free-piston engine.
  • Homogeneous charge compression ignition combustion.
  • Kinetic modeling.
  • Micro-power generation.
  • Microchemical

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