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NASA-LLIS-0964

Lessons Learned – Space Shuttle Main Engine (SSME): Dry Gaseous Purges

contributor authorNASA - National Aeronautics and Space Administration (NASA)
date accessioned2017-09-04T15:22:56Z
date available2017-09-04T15:22:56Z
date copyright05/15/1995
date issued1995
identifier otherNDUEQCAAAAAAAAAA.pdf
identifier urihttps://yse.yabesh.ir/std/handle/yse/23145
description abstractDescription of Driving Event:
Prior to starting the engine, there is a period of time referred to as the start preparation phase. At the beginning of this time period, the oxidizer side of the engine is purged with dry nitrogen to eliminate moisture and the fuel side is purged with dry helium to eliminate air as well as moisture. This prevents the formation of ice particles in the LOX system or air frozen by the hydrogen.
languageEnglish
titleNASA-LLIS-0964num
titleLessons Learned – Space Shuttle Main Engine (SSME): Dry Gaseous Purgesen
typestandard
page2
statusActive
treeNASA - National Aeronautics and Space Administration (NASA):;1995
contenttypefulltext
subject keywordsConfiguration Management
subject keywordsCryogenic Systems
subject keywordsGround Equipment
subject keywordsHardware
subject keywordsLaunch Vehicle
subject keywordsParts Materials & Processes
subject keywordsSafety & Mission Assurance
subject keywordsSpacecraft
subject keywordsTest Article
subject keywordsTest Facility


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