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Recommended Figures of Merit for Green MonopropellantsHydrazine propellant has historically been used as a rocket thruster monopropellant since the mid-1960s. Mission managers are well aware of its characteristics and performance. However, it is a known toxic chemical and a wide effort is underway to reduce and/or eliminate its use worldwide. Several new propellant combinations have been developed in the last few years which tout or promise to provide same or better performance as hydrazine while being "non-toxic" or "green". Yet, there is no consistent definition for what constitutes "non-toxic" or "green", and thus no good figure of merit for which to compare. This paper seeks to review the three major categories of figures of merit, and discusses how they might be used to assess the viability of a propellant.
Document ID
20140009582
Document Type
Technical Memorandum (TM)
Authors
Marshall. William M.
(NASA Glenn Research Center Cleveland, OH, United States)
Deans, Matthew C.
(NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
July 18, 2014
Publication Date
August 1, 2013
Subject Category
Astronautics (General)
Propellants And Fuels
Report/Patent Number
E-18733
GRC-E-DAA-TN9862
NASA/TM-2013-216560
AIAA Paper 2013-3722
Meeting Information
AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit(San Jose, CA)
Funding Number(s)
WBS: WBS 215133.02.03.03
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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