Numerical analysis of Miller-premixed charge compression ignition combustion on a dynamic φ

Numerical analysis of Miller-premixed charge compression ignition combustion on a dynamic φ—T map

Published:2010-02-23 Issue:2 Volume:11 Page:89-98
ISSN:1468-0874
Container-title:International Journal of Engine Research
language:en
Short-container-title:International Journal of Engine Research

Author:

Murata Y¹,Nishio Y¹,Kusaka J¹,Daisho Y¹,Kawano D²,Suzuki H²,Ishii H²,Goto Y²

Affiliation:

1. Waseda University, Tokyo, Japan

2. National Traffic Safety and Environment Laboratory, Tokyo, Japan

Abstract

A variable valve timing mechanism has been applied in a high-speed direct injection diesel engine. The effective compression ratio ( εeff) is lowered by means of late intake valve closing, while keeping the expansion ratio constant. Premixed charge compression ignition (PCCI) combustion, adopting the Miller cycle, was experimentally realized and numerically analysed. Significant improvements in NO x (nitrogen oxides) and soot emissions were achieved for a wide range of engine speeds and loads frequently used in a transient mode test. The operating range of the Miller-PCCI combustion has been expanded up to an indicated mean effective pressure of 1.3 MPa.

Publisher

SAGE Publications

Subject

Mechanical Engineering,Ocean Engineering,Aerospace Engineering,Automotive Engineering

Link

http://journals.sagepub.com/doi/pdf/10.1243/14680874JER05709

Reference3 articles.

1. Turbulence Modeling of Internal Combustion Engines Using RNG κ-ε Models

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