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NASA-LLIS-0134
Lessons Learned - Power Reactant Storage and Distribution (PRSD) LH2/GH2 Fuel Cell Servicing
Year: 1992
Abstract: Description of Driving Event:
The orbiter PRSD system provides GH2/GO2 for fuel cell operation. The PRSD H2 T-0 umbilical vent is installed to support controlled venting of the PRSD H2 system during convoy operations. The umbilical vent is connected to the backpressure relief panel by flexhoses. Pressure must be maintained on the PRSD manifold during fuel cell cool down until vent stack and condenser exit temperatures are within 15 degrees Fahrenheit of ambient. Fixed hydrogen leak detection sensors monitor the fuel cell servicing/deservicing system areas for H2 leaks which could result in damage to vehicle/facility or personnel injury.
The orbiter PRSD system provides GH2/GO2 for fuel cell operation. The PRSD H2 T-0 umbilical vent is installed to support controlled venting of the PRSD H2 system during convoy operations. The umbilical vent is connected to the backpressure relief panel by flexhoses. Pressure must be maintained on the PRSD manifold during fuel cell cool down until vent stack and condenser exit temperatures are within 15 degrees Fahrenheit of ambient. Fixed hydrogen leak detection sensors monitor the fuel cell servicing/deservicing system areas for H2 leaks which could result in damage to vehicle/facility or personnel injury.
Subject: Hardware
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| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T17:03:23Z | |
| date available | 2017-09-04T17:03:23Z | |
| date copyright | 09/24/1992 | |
| date issued | 1992 | |
| identifier other | XWYCQCAAAAAAAAAA.pdf | |
| identifier uri | https://yse.yabesh.ir/std/handle/yse/126972 | |
| description abstract | Description of Driving Event: The orbiter PRSD system provides GH2/GO2 for fuel cell operation. The PRSD H2 T-0 umbilical vent is installed to support controlled venting of the PRSD H2 system during convoy operations. The umbilical vent is connected to the backpressure relief panel by flexhoses. Pressure must be maintained on the PRSD manifold during fuel cell cool down until vent stack and condenser exit temperatures are within 15 degrees Fahrenheit of ambient. Fixed hydrogen leak detection sensors monitor the fuel cell servicing/deservicing system areas for H2 leaks which could result in damage to vehicle/facility or personnel injury. | |
| language | English | |
| title | NASA-LLIS-0134 | num |
| title | Lessons Learned - Power Reactant Storage and Distribution (PRSD) LH2/GH2 Fuel Cell Servicing | en |
| type | standard | |
| page | 2 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;1992 | |
| contenttype | fulltext | |
| subject keywords | Hardware | |
| subject keywords | Logistics |