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Throttling capability of a 30 kW class ammonia arcjetThe throttling capabilities of a 30 kW class ammonia arcjet and its compatibility with a breadboard power conditioning unit (PCU) were tested in two series of tests. The first series was performed to determine the performance and operating characteristics of the arcjet and the PCU over a range of power levels and propellant flow rates. The power levels for the tests were nominally between 10 and 30 kW, with some operation below 10 kW at the lower flow rates. The ammonia flow rates varied between 0.16 and 0.35 g/s. The second series of tests was an extensive investigation of operation below 12 kW using three cathode spacings. The ammonia flow rates were between 0.115 and 0.335 g/s. Operation of the arcjet from 1.5 kW up to the 30 kW design point was demonstrated with the PCU.
Document ID
19910059677
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Goodfellow, K. D.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Polk, J. E.
(JPL Pasadena, CA, United States)
Date Acquired
August 15, 2013
Publication Date
June 1, 1991
Subject Category
Spacecraft Propulsion And Power
Report/Patent Number
AIAA PAPER 91-2577
Accession Number
91A44300
Distribution Limits
Public
Copyright
Other

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