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NASA-LLIS-0084
Lessons Learned - Environmental Control System (ECS) Purge of Orbiter Compartments
Year: 1992
Abstract: Description of Driving Event:
The OPF environmental control system (ECS) supplies conditioned air through ducts to the orbiter to purge and pressurize the forward/aft compartments and the payload bay. Over-pressurization could occur during ECS purge if the ventdoors are closed. No automatic monitoring and/or control exists to preclude simultaneous application of ECS purge air while all orbiter vent doors are closed, or to automatically relieve excess pressure under these circumstances.
The OPF environmental control system (ECS) supplies conditioned air through ducts to the orbiter to purge and pressurize the forward/aft compartments and the payload bay. Over-pressurization could occur during ECS purge if the ventdoors are closed. No automatic monitoring and/or control exists to preclude simultaneous application of ECS purge air while all orbiter vent doors are closed, or to automatically relieve excess pressure under these circumstances.
Subject: Flight Equipment
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| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T18:15:20Z | |
| date available | 2017-09-04T18:15:20Z | |
| date copyright | 06/09/1992 | |
| date issued | 1992 | |
| identifier other | HJYCQCAAAAAAAAAA.pdf | |
| identifier uri | http://yse.yabesh.ir/std;jsery=autho162s7D8308/handle/yse/198236 | |
| description abstract | Description of Driving Event: The OPF environmental control system (ECS) supplies conditioned air through ducts to the orbiter to purge and pressurize the forward/aft compartments and the payload bay. Over-pressurization could occur during ECS purge if the ventdoors are closed. No automatic monitoring and/or control exists to preclude simultaneous application of ECS purge air while all orbiter vent doors are closed, or to automatically relieve excess pressure under these circumstances. | |
| language | English | |
| title | NASA-LLIS-0084 | num |
| title | Lessons Learned - Environmental Control System (ECS) Purge of Orbiter Compartments | en |
| type | standard | |
| page | 2 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;1992 | |
| contenttype | fulltext | |
| subject keywords | Flight Equipment | |
| subject keywords | Flight Operations | |
| subject keywords | Launch Process | |
| subject keywords | Launch Vehicle | |
| subject keywords | Pressure Vessels |