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

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.

Grantor dc:publisher

Lund University

Year dc:date

2007

Author dc:creator

• Manente, Vittorio

• Other Mechanical Engineering
• optical diagnostics
• millidomain combustion
• HCCI
• high speed

Statement dc:rights

• info:eu-repo/semantics/openAccess

Language dc:language

eng

Repository record dc:identifier

https://lup.lub.lu.se/record/574802

OAI identifier oai:identifier

oai:lup.lub.lu.se:10151c58-4743-4846-9cec-ea7eafd2da74