Radiation Transport In The Cesium Thermionic Converter

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Radiation Transport In The Cesium Thermionic Converter

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Author : Floyd E. Gelhaus
language : en
Publisher:
Release Date : 1966

Radiation Transport In The Cesium Thermionic Converter written by Floyd E. Gelhaus and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1966 with Cesium categories.

Performance And Energy Transfer Measurements On Cylindrical Cesium Thermionic Converters

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Author :
language : en
Publisher:
Release Date : 1963

Performance And Energy Transfer Measurements On Cylindrical Cesium Thermionic Converters written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1963 with categories.

Detailed measurements of performance and energy transfer were made on two highly instrumented cylindrical cesium thermionic converters with electrically heated tungsten emitters. The first converter, OC-4, which had a niobium collector, operated with an initial electrical output of 6.9 watts/cm/sup 2/. This output gradually degraded to a value of 4.6 watts/cm2 after 1351 hr. These power values were measured at the electrodes for an average emitter temperature of 1 750 deg C, Converter OC-5, which had a molybdenum collector, has operated 260 hr to date, with a power output and efficiency of 11.1 watts/cm/sup 2/ and 16%, respectively, at an average emitter temperature of 1800 deg C. These operating data are compared with those for lower emitter temperatures below. Temperature Density Efficiency Energy values of the emitter electron cooling, collector electron heating, thermal radiation, and cesium conduction were calorimetrically determined as a function of emitter temperature, collector temperature, cesium pressure, and current. For all the data obtained, the emitter temperature profile was measured by thermocouples. From the calorimeter measurements, correlations were found for the prediction of emitter electron cooling DELTA Q/sub E/ and collector electron heating DELTA Q/sub C/: DELTA Q/sub E/ = I (2.6 + V), and DELTA Q/sub C/ = I (2. The correlation is valid within 4% accuracy over the operating variable range: emitter temperature of 1200 to 1800 deg C; cesium reservoir temperature of 300 to 400 deg C;, collector temperature of 600 to 700 deg C; and current of zero to 15 amp/cm2 . Through measurements of emitterstructure heat losses, of the cesium-vapor thermal conduction, and of the electrode radiation heat transfer, it was found that all the zero-current energy-transfer quantities can be accurately predicted with RAT, a two-dimensional digital-computer heat-transfer code. The electron cooling correlation, together with the ability to calculate all of the power-loss values in a thermionic converter, makes it possible to compute the efficiency of a converter when the I-V characteristics and materials properties are known This is of special interest to thermionic reactor analysis, since the input to the reactor problem is the amount of fission produced in each of a very large number of cells within the reactor. Apart from the utility of the correlation discovered, the determination of the value of 2.6 volts in the current-heating terms is of fundamental interest and invites further study. (auth).

Ionization Phenomena In A Cesium Thermionic Converter Plasma

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Author : Daniel Wilkins (Dancer)
language : en
Publisher:
Release Date : 1964

Ionization Phenomena In A Cesium Thermionic Converter Plasma written by Daniel Wilkins (Dancer) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964 with Cesium categories.

Cesium Plasma Studies For Thermionic Energy Conversion

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Author : Ronald Charles Knechtli
language : en
Publisher:
Release Date : 1962

Cesium Plasma Studies For Thermionic Energy Conversion written by Ronald Charles Knechtli and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1962 with Cesium categories.

Nasa Scientific And Technical Reports

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Author : United States. National Aeronautics and Space Administration Scientific and Technical Information Division
language : en
Publisher:
Release Date : 1966

Nasa Scientific And Technical Reports written by United States. National Aeronautics and Space Administration Scientific and Technical Information Division and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1966 with Aeronautics categories.

Technical Summary Report For Basic Research In Thermionic Energy Conversion

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Author : Lorin K. Hansen
language : en
Publisher:
Release Date : 1969

Technical Summary Report For Basic Research In Thermionic Energy Conversion written by Lorin K. Hansen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with Absorption categories.

The report presents the results of the past year's work in a program to investigate basic process in thermionic diodes which are important to the realization of practical thermionic energy conversion.

Thermionic Conversion Specialists Conference

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Author : Institute of Electrical and Electronics Engineers
language : en
Publisher:
Release Date : 1968

Thermionic Conversion Specialists Conference written by Institute of Electrical and Electronics Engineers and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with Thermionic converters categories.

Nuclear Science Abstracts

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Author :
language : en
Publisher:
Release Date : 1973

Nuclear Science Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Nuclear energy categories.

A Selected Listing Of Nasa Scientific And Technical Reports For

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Author : United States. National Aeronautics and Space Administration. Scientific and Technical Information Division
language : en
Publisher:
Release Date : 1964

A Selected Listing Of Nasa Scientific And Technical Reports For written by United States. National Aeronautics and Space Administration. Scientific and Technical Information Division and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964 with Aeronautics categories.

Scientific And Technical Aerospace Reports

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Author :
language : en
Publisher:
Release Date : 1977

Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977 with Aeronautics categories.