Improved Coward explosive triangle for determining explosibility of …
Mar 1, 2011 · In this paper, a brief introduction of the Coward explosive triangle is described firstly. Then based on analyzing its drawbacks, some improvements with different aspects to calibrate the Coward explosive triangle are proposed and discussed.
The Coward Triangle plots the percentage of oxygen against the total percentage of flammable gases in the sample of interest (Figure 1). The three critical limits are all calculated for the particular sample from which the four zones; explosive, fuel lean, fuel rich and nonexplosive - are all determined and delineated on the diagram (Figure 2).
Methods to determine the mine gas explosibility – An overview
May 1, 2012 · The Coward explosive triangle (Coward & Jones, 1952) is considered as a fast and easy way to determine the explosibility of the mixture of air and combustible gases. It considers only three combustible gases (i.e., CH 4 , CO and H 2 ).
Explosibility Safety Factor: An Approach to Assess Mine Gas
Jan 26, 2013 · The Coward explosive triangle is considered a fast and easy way to determine the explosibility of the mixture of air and combustible gases. In its original version, it considers only three combustible gases (i.e., CH 4 , CO and H 2 ).
Coward - Jones' explosive triangle was a 2D representation of the explosive atmosphere consisting of simple methane and air. C. W. Ellicott modified the Coward-Jones diagram in 1981, in order to simplify it for easier practical use.
Calibrated explosive triangle for determining capacity of …
Jul 1, 2011 · One of the more popular methods is the Coward explosive triangle, published by Coward. He presented a fast and easy way to determine the capacity for explosion of gas mixtures, which has proved to be a very useful tool for mining engineers and members of …
An improved technique for monitoring explosibility of gases
Monitoring the potential for explosion in an underground coal mine traditionally centres on using the Coward Triangle, the Hughes Raybould Diagram, the USM explosibility diagram or the Ellicott diagram.
An improved technique for monitoring explosibility of gases
Monitoring the potential for explosion in an underground coal mine traditionally centres on using the Coward Triangle, the Hughes Raybould Diagram, the USM explosibility diagram or the Ellicott diagram.
(PDF) Use of explosibility diagrams in potentially explosive ...
Coward - Jones' explosive triangle was a 2D representation of the explosive atmosphere consisting of simple methane and air. C. W. Ellicott modified the Coward-Jones diagram in 1981, in order to simplify it for easier practical use.
Figure 1 CO explosive triangle (Cheng and Yang, 2011) The Coward diagram can clearly identify the explosive status of gas-mixture and track its explosibility trend as the compositions of the gas-mixture change.