Thermal properties of combustion chamber deposits and their effect on engine heat transfer and octane requirement increase

An investigation of the thermal properties of combustion chamber deposits and their effect on engine heat transfer and Octane Requirement Increase (ORI) has been completed. Deposits were grown in a Chrysler 4-cylinder 2.2 liter engine with total test times of 50- and 250-hours. Two fuels were used, both having the same unleaded premium fuel base, but one was doped with reformer bottoms which promoted deposit growth and octane requirement increase. Thicknesses were measured using a machinist's microscope and the thermal diffusivity and conductivity were measured with high speed thermocouples and steady and flash laser techniques.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Mechanical Engineering

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2011

Author dc:creator

• Hayes, Timothy Keith

Contributors dc:contributor

• White, Robert A.

• Engineering, Automotive

Statement dc:rights

• Copyright 1991 Hayes, Timothy Keith

Language dc:language

eng

Identifier

AAI9210831
(UMI)AAI9210831

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/20934