Energy Conservation and Sustainability, Technologies for Propellant Conservation, Phase I

Metadata Updated: November 12, 2020

NASA Stennis Space Center (SSC) is one of the largest consumers of gaseous helium in the world through its engine testing operations. Because helium is a nonrenewable resource, it is desirable to conserve the gas when possible. For safety purposes, helium is used to purge an engine following a test that utilizes cryogenic liquid hydrogen fuel (e.g. a Space Shuttle Main Engine test). This proposal is another important step toward enabling helium conservation through real-time measurement of the H2 concentration in the purge gas. The STTR will continue the characterization of a commercial H2 detector for use as a real-time sensor for determining the concentration of H2 in the helium purge gas. The H2 concentration can be used as an indicator that the liquid hydrogen has been purged from the engine, allowing the helium purge to be of shorter duration, thereby conserving this resource. Significant analysis of sensor capabilities as well as experimental characterization of the sensor performance in a simulated test-stand environment will be performed. A sensor configuration will be recommended with the goal of identifying the best installation option that avoids pumps, mechanical actuators, or the need to vent or pipe a sample if possible.

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Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Publisher Space Technology Mission Directorate
Unique Identifier Unknown
Identifier TECHPORT_10399
Data First Published 2012-02-01
Data Last Modified 2020-01-29
Public Access Level public
Bureau Code 026:00
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Homepage URL
Program Code 026:027
Source Datajson Identifier True
Source Hash 2b31053b4f1ed300ad50c8094f495727b44df0b4
Source Schema Version 1.1

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