The flammability limits of methane, ethylene, propane, and hydrogen were experimentally determined at elevated initial mixture temperatures up to 350°C at atmospheric pressure for upward flame propagation in a steel test tube apparatus. The existence of preignition reactions at these levels of temperatures that may influence the value of the flammability limits was also investigated. The fuel-air mixtures were exposed to elevated temperatures over different periods of time before spark ignition (up to 2 h). It was shown that the flammability limits for methane widened approximately linearly with an increase in the initial mixture temperature over the entire range of temperatures tested and were not affected by the length of the exposure time to these temperatures before spark ignition. However, different behaviour was observed for the flammability limits of the other tested fuels—ethylene, propane, and hydrogen. At higher temperatures the flammability limits narrowed and were very significantly affected by the exposure time. The longer was the exposure time of fuel-air mixtures to the elevated temperatures, the narrower were their flammability limits.
Skip Nav Destination
Article navigation
January 1999
Research Papers
The Effect of Time of Exposure to Elevated Temperatures on the Flammability Limits of Some Common Gaseous Fuels in Air
I. Wierzba,
I. Wierzba
Department of Mechanical Engineering, The University of Calgary, Calgary, AB, T2N 1N3, Canada
Search for other works by this author on:
B. B. Ale
B. B. Ale
Department of Mechanical Engineering, The University of Calgary, Calgary, AB, T2N 1N3, Canada
Search for other works by this author on:
I. Wierzba
Department of Mechanical Engineering, The University of Calgary, Calgary, AB, T2N 1N3, Canada
B. B. Ale
Department of Mechanical Engineering, The University of Calgary, Calgary, AB, T2N 1N3, Canada
J. Eng. Gas Turbines Power. Jan 1999, 121(1): 74-79 (6 pages)
Published Online: January 1, 1999
Article history
Received:
April 1, 1998
Online:
November 19, 2007
Citation
Wierzba, I., and Ale, B. B. (January 1, 1999). "The Effect of Time of Exposure to Elevated Temperatures on the Flammability Limits of Some Common Gaseous Fuels in Air." ASME. J. Eng. Gas Turbines Power. January 1999; 121(1): 74–79. https://doi.org/10.1115/1.2816316
Download citation file:
Get Email Alerts
Cited By
Cooled Spray Technology for Particulate Reduction in a Heavy-Duty Engine
J. Eng. Gas Turbines Power
Prediction and Analysis of Transient Turbine Tip Clearance Using Long Short-Term Memory Neural Network
J. Eng. Gas Turbines Power
Gas Turbine's Role in Energy Transition
J. Eng. Gas Turbines Power (October 2024)
The Effect of Swirl Number on Lean Blow Out Limits of Lean Direct Injection Combustors
J. Eng. Gas Turbines Power (October 2024)
Related Articles
The Limits of Flame Propagation Within Homogeneous Streams of Fuel and Air
J. Energy Resour. Technol (June,1986)
Ignition Delay and Combustion Characteristics of Gaseous Fuel Jets
J. Eng. Gas Turbines Power (April,2010)
A Computational Investigation of Nonpremixed Combustion of Natural Gas Injected Into Mixture of Argon and Oxygen
J. Eng. Gas Turbines Power (August,2019)
An Improved Core Reaction Mechanism for Saturated C 0 -C 4 Fuels
J. Eng. Gas Turbines Power (February,2012)
Related Proceedings Papers
Related Chapters
Introduction
Nanomaterials in Glucose Sensing: Biomedical & Nanomedical Technologies - Concise Monographs
The Impact of Plant Economics on the Design of Industrial Energy Systems
Industrial Energy Systems
Measurement and Modeling of Temperature Dependent Internal Hydrogen Assisted Cracking in Cr-Mo Steel
International Hydrogen Conference (IHC 2012): Hydrogen-Materials Interactions