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Results for “emittance”
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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Computer acquired performance data from an etched-rhenium, niobium thermionic converter
Computer processed performance data for thermionic converter with etched rhenium emitter and niobium collector
Space charge effects in a vacuum thermionic diode
Temperature effects on thermionic diode with space charge model including emitter and accumulator electrode emissions
Computer-acquired performance data from a chemically vapor-deposited-tungsten, niobium planar diode
Computer analysis of performance of chemically vapor-deposited tungsten, niobium thermionic converter based on temperatures of emitter, collector and cesium reservoir
Comparison of computer-acquired performance data from several fixed spaced planar diodes
Comparison of performance data envelopes for thermionic diodes with various tungsten or rhenium emitters and niobium or molybdenum collectors
Performance characteristics of a 0001 rhenium thermionic converter
Vacuum work function of thermionic converter using planar monocrystalline rhenium emitter over temperature range
Cesiated work functions of 0001 rhenium
Cesiated work functions of directed monocrystalline Re thermionic emitter from saturated electron emission currents over temperature range
A review of thermionic converter tests
Thermionic converter tests, discussing W emitter with Nb and Mo-on-Nb collectors, surface and electrode combinations
Design, operation and post-test analysis of a high performance cylindrical converter
Long term stability and post test analysis of vapor deposited W emitters in high performance cylindrical thermionic converters
The performance of a molybdenum/molybdenum cylindrical thermionic converter
Maximum efficiency of cylindrical thermionic converters with Mo emitter and collector over temperature range
Evaluation of a thermionic diode with an integral guard ring
Thermionic diode with integral guard ring, measuring emitter and collector work functions and heat transfer
Some investigations of refractory metal systems of thermionic interest
Refractory metal thermionic emitter-support systems, measuring surface interdiffusion at high temperatures
Feedback control of proportional counter gain
Gas proportional counting system gain stabilization, using feedback loop radioactive X ray emitter and correction signal
Directional property effects on radiant heat transfer and equilibrium temperature
Local radiative heat transfer and equilibrium temperature between identical uniform surface geometry planes, discussing directional dependent emittance and absorptance effects
A 5 kW/e/ radioisotope thermionic power supply for unmanned electric propulsion
Radioisotope thermionic power supply for unmanned electric propulsion missions to outer planets, using 69 modules consisting of thermionic converter and emitter heat pipe
Computer-acquired performance map of an etched-rhenium, niobium planar diode
Computer acquired performance mapping of fixed spaced planar diode with etched Re emitter and Nb collector over wide operating temperature range
Design, fabrication and testing of externally configured thermionic diodes
Design, fabrication and testing of electrically heated externally configured thermionic diodes with emitter using mandrel side of CVD fluoride tungsten for electrode surface
Radiant heat transfer between nongray surfaces
Nongray surface property effects on radiant heat transfer between interacting opaque surfaces, analyzing spectral emittance wavelength and temperature dependence