NASA-LLIS-0485

Lessons Learned - Isolate the Propulsion Pressurization System from the Propellant Tanks (1993)

contributor author	NASA - National Aeronautics and Space Administration (NASA)
date accessioned	2017-09-04T17:00:37Z
date available	2017-09-04T17:00:37Z
date copyright	35411
date issued	1996
identifier other	XPBEQCAAAAAAAAAA.pdf
identifier uri	https://yse.yabesh.ir/std/handle/yse/124107
description abstract	Abstract: The "most probable cause" of the Mars Observer mission failure was identified as migration of substantial amounts of nitrogen tetroxide oxidizer upstream through the check valves where it condensed on the cold tubing. When the pressurization sequence was executed upon Mars encounter, the liquid oxidizer may have mixed rapidly with fuel in the lines and detonated. The recommendations included (1) preventing hazardous propellant vapor migration and (2) performing thermal analysis of pressurization systems to identify incipient conditions for propellant condensation.
language	English
title	NASA-LLIS-0485	num
title	Lessons Learned - Isolate the Propulsion Pressurization System from the Propellant Tanks (1993)	en
type	standard
page	3
status	Active
tree	NASA - National Aeronautics and Space Administration (NASA):;1996
contenttype	fulltext
subject keywords	Bipropellant Propulsion System
subject keywords	Energetic Materials - Explosive/Propellant/Pyrotechnic
subject keywords	Propellant Vapor Diffusion
subject keywords	Spacecraft