Development of Sensors for Detecting Leaks of O2 and H2

TBMG-7505

12/01/2001

Abstract
Content

The Propulsion group at Dryden Flight Research Center is performing analyses of the effectiveness of chemical-species sensors for detecting and assessing leakage. The group is also studying relationships between (1) rates at which high-energy species leak from the propellant-feed systems of advanced aircraft and spacecraft and (2) the rates of leakage of inert species substituted for the high-energy species in the same systems. Several commercial sensors and a prototype noncommercial sensor have been and continue to be subjected to tests of their ability to detect their respective chemical species accurately and quickly. Analysis of the data from these tests is expected to determine whether it is possible to develop instruments capable of detecting propellant leaks over a wide range of temperature and pressure. If suitable, the instruments can be employed in various flight experiments in which there are requirements for such leak-detection capability. Analysis of data from inert- and high-energy-propellant leak testing will help in scaling leakage from gaseous propellant feed systems without the need to use high-energy propellants during subsequent leak tests.

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Citation
"Development of Sensors for Detecting Leaks of O2 and H2," Mobility Engineering, December 1, 2001.
Additional Details
Publisher
Published
Dec 1, 2001
Product Code
TBMG-7505
Content Type
Magazine Article
Language
English