Download or read book A Study Program on Cesium Vapor Filled Thermionic Converters Having High Vacuum Work Function Emitter Materials written by A. J. Kennedy and published by . This book was released on 1963 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ruthenium, a material having relatively low neutron absorption cross section, was investigated both as an emitter and collector in a thermionic converter. Both hot pressed and plasma sprayed ruthenium emitters were found to behave like high vacuum work function materials (i.e., display high output current densities at relatively low cesium pressures). Significant differences were noted, however, in the performance of the two ruthenium emitters prepared by the different processes. The performance of the ruthenium emitters is compared to that of iridium and rhenium emitters. Generally, the ruthenium data shows a higher output power density, particularly at relatively wide (10 to 30 mil) interelectrode gaps. The ruthenium plasma sprayed collector assumes its minimum value at a temperature which is lower than that for a molybdenum collector by approximately 100K. The value of collector work function at optimum is indicated to be approximately equal for ruthenium and molybdenum. (Author).
Download or read book A STUDY PROGRAM ON CESIUM VAPOR FILLED THERMIONIC CONVERTERS HAVING HIGH VACUUM WORK FUNCTION EMITTER MATERIALS Yearly Summary Report November 1 1962 October 31 1963 written by and published by . This book was released on 1965 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A STUDY PROGRAM ON CESIUM VAPOR FILLED THERMIONIC CONVERTERS HAVING IRIDIUM EMITTERS written by and published by . This book was released on 1962 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: An extensive mapping of the performance of cesium vapor-filled energy conversion devices was obtain for the high vacuum work function emitter materials, iridium and rhenium, for the interelectrode gap of 0.030-in. Characteristic current-versus-voltage curves and summaries of the output power density and efficiency are given for the emitter temperature ra ge of 1550-2000 K and the cesium temperature range of K. The data show a systematic superiority of iridium to rhenium Tests with a platinum emitter device confirm the trend of good performance in cesium vapor with high vacuum work function emitter materials. Data is given showing a highly precise agreement between two iridium filament emitter devices and an electron bombardment heated device with iridium emitter. At the emitter temperature of 1700 K, liquid cesium temperature of 525 K, and interelectrod gap of 0.030-in., the output power density of the three devices was 5.6! 0.2 w/sq cm. and the energy conversion efficiency was 14.25 +- 1.25%.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1971 with total page 1330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Government Research Development Reports written by and published by . This book was released on 1965 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 908 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research and Development for Barium Vapor filled Thermionic Energy Conversion Technology written by Martin Company and published by . This book was released on 1964 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements written by and published by . This book was released on 1974-10-04 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1974 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High temperature Vapor filled Thermionic Converter written by R. Skoff and published by . This book was released on 1964 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Direct Energy Conversion Literature Abstracts written by and published by . This book was released on 1965 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book U S Government Research Reports written by and published by . This book was released on 1964 with total page 1416 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Scientific and Industrial Reports written by and published by . This book was released on 1965 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plasma and Flame Sprayed Coatings written by United States. National Technical Information Service and published by . This book was released on 1977 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thermionic Energy Converter written by Dr. Walter L. Knecht and published by . This book was released on 1960 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plasma Physics and Magnetohydrodynamics written by and published by . This book was released on 1963 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1978 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.
