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Characterization of Glow Plug and HCCI Combustion Processes in a Small Volume at High Engine Speed - Load Range, Emission Characteristics and Optical Diagnostics

by Manente, Vittorio

Abstract (Summary)
The objective of this research that has taken me halfway to my PhD degree was to understand how HCCI combustion behaves in a small volume at high rotational speed. The investigation has been carried out using a modified model airplane engine. The whole study can be divided into two main parts; in the first, the nature of the glow plug combustion was investigated through experiments on a metal engine and by use of optical diagnostics. Once the glow plug combustion process was fully understood, the engine was modified in order to achieve pure HCCI operations. Initially, a basic investigation was carried out using a metal and optical engine. Later, further research was performed on the main parameters affecting HCCI operations in such a small volume, i.e. the quenching distance, wall temperature and combustion chamber geometry. In addition to these studies, a model for calculating the amount of retained gas in a 2-stroke engine was developed and a miniature HCCI free piston engine was designed from scratch.
Bibliographical Information:

Advisor:

School:Lunds universitet

School Location:Sweden

Source Type:Master's Thesis

Keywords:TECHNOLOGY; millidomain combustion; optical diagnostics; HCCI; high speed

ISBN:

Date of Publication:01/01/2007

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