CCPS Process Safety Glossary
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Only those data elements and numerical values that are used to specify... Read More... |
A time frame established for a given data study. |
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A system which divides process control functions into specific areas... Read More... |
Deflagration and detonation arresters or deflagration and detonation flame... Read More... |
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A mode of control wherein digital computer outputs are used to directly... Read More... |
A blockage on the discharge side of an operating pump which results in the... Read More... |
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The interval of time between initiation of an input change or stimulus and... Read More... |
Breakdown of a material or substance (by heat, chemical reaction,... Read More... |
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To undergo chemical breakdown, separating into constituent parts or... Read More... |
The maximum amount of energy which can be released upon decomposition. The... Read More... |
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The decomposition energy is the maximum amount of energy which can be... Read More... |
Flames that are produced by exothermic decomposition of certain gases in the... Read More... |
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Temperature at which spontaneous decomposition occurs. In practice it is... Read More... |
Reasoning from the general to the specific. By postulating that a system or... Read More... |
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Reasoning from the general to the specific. By postulating that a system/... Read More... |
Measures directed to reduce the consequences of a runaway to an acceptable... Read More... |
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Propagation of a combustion zone at a velocity less than the speed of sound... Read More... |
A release of energy caused by the propagation of a chemical reaction in... Read More... |
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A combustion wave (flame) propagating in the unreacted medium at a velocity... Read More... |
A flame arrester used to prevent the transmission of a deflagration. |
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A method employing equipment and procedures that interrupts the propagation... Read More... |
The technique of specifying the design pressure of a vessel and its... Read More... |
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The technique of detecting and arresting combustion in a confined space... Read More... |
The transition phenomenon resulting from the acceleration of a deflagration... Read More... |
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The reduction of pressure generated in a vessel by a deflagration by... Read More... |
Dense Gas Dispersion Model (Havens et al., 2001) |
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A failure which is gradual or partial; it does not cease all function but... Read More... |
A specialized logic form of an "AND" gate where all inputs to the gate must... Read More... |
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A polling of experts. The Classical Delphi is a single estimate (for each... Read More... |
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A plant condition or event which requires a protective system or device to... Read More... |
The number of demands divided by the total elapsed operating time during... Read More... |
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The total number of demands for the data window experienced by the component... Read More... |
A failure that is primarily related to the number of times that a device or... Read More... |
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Cloud density is greater than ambient air density, due to the high molecular... Read More... |
A gas with density exceeding that of air at ambient temperature. Sometimes... Read More... |