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- W1970543370 abstract "A total of 1462 hours of operaton were demonstrated in an endurance test of a 30 kWe-class ammonia arcjet operated at 10 kWe. The propellant flow rate was 0.170 g/s, and the measured performance increased from approximately 650 s specific impulse at 36 percent efficiency at the beginning of the test to 675 s at 39 percent near the end. The voltage increased and the current dropped slightly over the first 400 hours, and then remained approximately constant for the remainder of the test. The test, scheduled for 1500 hours, was terminated after an insulator in the rear of the engine failed. Post-test examination of the electrodes revealed only minimal damage. Although there was evidence of a number of mass transport processes occurring in the discharge chamber, the primary life-limiting wear mechanisms appear to be cathode tip erosion and constrictor melting." @default.
- W1970543370 created "2016-06-24" @default.
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- W1970543370 date "1992-07-06" @default.
- W1970543370 modified "2023-09-26" @default.
- W1970543370 title "Results of a 1462 hour ammonia arcjet endurance test" @default.
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- W1970543370 doi "https://doi.org/10.2514/6.1992-3833" @default.
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