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Investigation and Comparison of Residual Gas Enhanced HCCI using Trapping (NVO HCCI) or Rebreathing of Residual Gases

In English

Författare

Summary, in English

A comparison between throttled and unthrottled spark ignition combustion with residual enhanced HCCI combustion is made. Early intake valve closing and late intake valve closing valve strategies for unthrottled spark ignition combustion are evaluated and compared. Approximately 3-6 percent relative improvement in net indicated efficiency is seen when comparing unthrottled spark ignition combustion with throttled spark ignition combustion depending on valve strategy and engine speed. The relative improvement in efficiency from spark ignition combustion to HCCI combustion is approximately 20 percent for the conditions presented in this study. The rebreathing strategies have the highest efficiency of the cases in this study.

Publiceringsår

2011

Språk

Engelska

Publikation/Tidskrift/Serie

SAE Technical Paper Series

Dokumenttyp

Konferensbidrag

Förlag

Society of Automotive Engineers

Ämne

  • Other Mechanical Engineering

Nyckelord

  • Internal Combustion Engines
  • HCCI
  • Negative Valve Overlap

Conference name

JSAE/SAE International Fuels & Lubricants Conference

Conference date

2011-08-30

Conference place

Kyoto, Japan

Status

Published

Projekt

  • Competence Centre for Combustion Processes

ISBN/ISSN/Övrigt

  • ISSN: 0148-7191
  • 2011-01-1772