Presenter Information

Nick Staiano, University of Wyoming

Department

Mechanical Engineering

First Advisor

Erica Belmont

Description

The analysis of cool flames is a relatively brand new study to the field of combustion science. Despite their discovery 200 years ago, there is minimal research and information on cool flames. Cool flames have been found to be linked to engine knock experienced in internal combustion engines. Engine knock is likely caused by early ignition of gases in the chamber, and since cool flame ignition has been found to precede hot flame ignition, it is a plausible explanation for engine knock. Well established data profiling cool flames may be the key to engine design that eliminates the chance for engine knock. The primary drawback to cool flame experimentation was the difficulty of establishing self-sustaining cool flames. However, a recent study in 2014 succeeded in stabilizing n-heptane fueled cool flames. In the last year at the University of Wyoming, Dimethyl Ether cool flames were stabilized, and an experimental study of their characterization was begun. This study was conducted by Dr. Erica Belmont and PhD student Mohammadhadi Hajilou and associates. It is the goal of this project to continue the efforts of Dr. Belmont and Mr. Hajilou of characterizing these cool flames. Replications of Dimethyl Ether cool flame temperature measurement experiments are performed. Repeatability of this data reduces uncertainty and confirms the legitimacy of the recent cool flame study.

Comments

Wyoming EPSCoR

Included in

Education Commons

Share

COinS
 

Continued Analysis of Freely Propagating Dimethyl Ether Cool Flames

The analysis of cool flames is a relatively brand new study to the field of combustion science. Despite their discovery 200 years ago, there is minimal research and information on cool flames. Cool flames have been found to be linked to engine knock experienced in internal combustion engines. Engine knock is likely caused by early ignition of gases in the chamber, and since cool flame ignition has been found to precede hot flame ignition, it is a plausible explanation for engine knock. Well established data profiling cool flames may be the key to engine design that eliminates the chance for engine knock. The primary drawback to cool flame experimentation was the difficulty of establishing self-sustaining cool flames. However, a recent study in 2014 succeeded in stabilizing n-heptane fueled cool flames. In the last year at the University of Wyoming, Dimethyl Ether cool flames were stabilized, and an experimental study of their characterization was begun. This study was conducted by Dr. Erica Belmont and PhD student Mohammadhadi Hajilou and associates. It is the goal of this project to continue the efforts of Dr. Belmont and Mr. Hajilou of characterizing these cool flames. Replications of Dimethyl Ether cool flame temperature measurement experiments are performed. Repeatability of this data reduces uncertainty and confirms the legitimacy of the recent cool flame study.