Description
The term uncontrolled decompression here refers to the unplanned depressurisation of vessels that are occupied by people. For example, an aircraft cabin at high altitude, a spacecraft, or a hyperbaric chamber. For the catastrophic failure of other pressure vessels used to contain gas, liquids or reactants under pressure, the term explosion is more commonly used, or other specialised terms such as BLEVE may apply to particular situations.
Decompression can occur due to structural failure of the pressure vessel, or failure of the compression system itself. The speed and violence of the decompression is affected by the size of the pressure vessel, the differential pressure between the inside and outside of the vessel and the size of the leak hole.
The Federal Aviation Administration recognizes three distinct types of decompression events in aircraft:
- Explosive decompression
- Rapid decompression
- Gradual decompression
Read more about this topic: Uncontrolled Decompression
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