CCPS Process Safety Glossary
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A device fitted to the opening of an enclosure or to the connecting piping... Read More... |
That portion of a flame arrester whose principal function is to prevent... Read More... |
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That portion of flame arrester whose principal function is to provide a... Read More... |
A device that prevents transmission of a flame from a source to a receptor... |
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The dimensions in which a burning or exploding gas is free to expand, 1D, 2D... Read More... |
That portion of the flame reaction zone moving into the unburned gas where... Read More... |
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A device that opens in response to the pressure wave preceding the flame... Read More... |
The movement of a flame front in piping or equipment. |
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The speed of a flame front relative to a fixed reference point. Flame speed... Read More... |
Theoretical temperature achieved based on chemical equilibrium with the... Read More... |
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Another name for a flame arrester, commonly used in the United Kingdom. |
See Flame Speed |
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A gas that is flammable in a mixture of 13 percent or less (by volume) with... Read More... |
The minimum and maximum molar (or volume) concentrations of a combustible... Read More... |
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The minimum and maximum concentration of fuel vapor or gas in a fuel vapor... Read More... |
A term used to classify certain liquids as defined by NFPA 30 as a liquid... Read More... |
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Any liquid that has a closed-cup flash point below 100ºF (37.8ºC), as... Read More... |
The mass of fuel in a vapor cloud that is in the flammable range, mf. |
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The range of concentrations between the lower and upper flammability limits... |
The temperature at which the vapor-air mixture above a liquid is capable of... Read More... |
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The combustion of a flammable gas or vapor and air mixture in which the... Read More... |
The combustion of a flammable vapor and air mixture in which flame passes... Read More... |
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The minimum temperature at which a liquid gives off sufficient vapor to form... Read More... |
The minimum temperature at which a liquid gives off vapor in sufficient... Read More... |
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The lowest temperature at which vapors above a volatile combustible... Read More... |
Undesired flame propagation opposite to the direction of flow. It is also... Read More... |
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An aperture designed to produce flow velocities which exceed the local flame... Read More... |
Experiments carried out at small scale in wind tunnels and water channels.... |
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Failure Mode Effect (and Criticality) Analysis; A technique in which all... Read More... |
An event or effect that cannot reasonably be anticipated or controlled. |
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The art and science of professional practice of those qualified to serve as... Read More... |
A device that is of the correct physical size and general appearance, and... Read More... |
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The conventional scientific designation for a material (water is H2O,... Read More... |
A probability representing the mean proportion of the total relevant time... Read More... |
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The mean fraction of time in which a component or system is unable to... Read More... |
G Wind speed at the top of the boundary layer. |