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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

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At least 991 records · Page 55

All sources NASA NTRS DOE OSTI

NASA NTRS1968

The performance of a rhenium, niobium cylindrical thermionic converter.

Cylindrical thermionic converter with vapor deposited rhenium emitter and niobium collector, measuring efficiency and power density

Kascak, T. J.↗

NASA NTRS1968

Performance of chloride and fluoride vapor- deposited tungsten emitters in thermionic converters.

Thermionic converters with chloride and fluoride vapor deposited tungsten emitters, comparing performance characteristics and stability

Wang, C.-C.↗

NASA NTRS1968

Side-wall currents in unignited hardware-type thermionic energy converters.

Side wall currents in unignited hardware type thermionic energy converters, discussing work function and heat choke

Shimada, K.↗

NASA NTRS1968

Electrical testing of a six-converter generator.

Electrical testing of six converter solar energy thermionic generator, discussing overheating and dual current mode anomalies

Shimada, K.↗

NASA NTRS1968

Metallography of thermionic converters.

Thermionic converter metallography relationship between materials and fabrication methods and reliable performance life

Rouklove, P.↗

NASA NTRS1968

Electron cooling and plasma heating of thermionic converters.

Semiempirical relation for electron cooling modified by plasma heating of thermionic converters, including effects of plasma density, diode spacing and surface potential difference

Breitwieser, R.↗

NASA NTRS1968

DC to DC converter regulated by a constant- frequency duty-cycle generator.

Closed loop regulated flyback DC to DC converter using constant frequency generator for duty cycle control

Babaa, I. M. H.↗

NASA NTRS1969

Thermionic converter technology.

Reliability and efficiency improvements for thermionic converters at JPL, giving failures analyses

Rouklove, P.↗

NASA NTRS1969

Long term operations of in-pile and out-of-pile thermionic converters.

Cylindrical geometry in-pile and out-of-pile thermionic converters long term life tests, including unfueled and fueled versions

Holland, J. W.↗

NASA NTRS1969

Magnetically focused electronographic image converters for space astronomy applications.

Magnetically focused electronographic image converters in far UV photography and spectroscopy in space astronomy applications

Carruthers, G. R.↗

NASA NTRS1969

Modularization of high-power inverters and converters.

Modularized static AC and DC inverters and converters for aerospace electrical power conditioning systems, discussing circuit functions and performance tests

Gourash, F.↗

NASA NTRS1970

Improved low cost ac-to-dc converter

Circuit converts an rms, ac voltage to a proportional dc voltage with good accuracy over a voltage range of approximately 6-1. It incorporates a pair of vacuum thermocouples in a dc feedback circuit.

Cremer, H. C.↗

NASA NTRS1970

Solid-state ac-to-dc converter

Converter uses solid-state ac-to-dc rectification circuitry, filter circuitry, a tuned transformer, ac chopper circuitry, and an automatic current-control network. It has a dc power source which operates from 5 to 100 percent load at a 72 to 94 input to output efficiency.

Monroe, C. M.↗

NASA NTRS1969