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Author : P. Colombo
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ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (141 download)
Download or read book TRITIUM STORAGE DEVELOPMENT. PROGRESS REPORT NO. 15, JANUARY - MARCH 1978 written by P. Colombo and published by . This book was released on 1979 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tritium Storage Development. Progress Report No. 15, January--March 1978 written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Two hydriding--dehydriding runs were made with zirconium sponge on an engineering scale for application to retrievable tritium storage systems. The dehydriding rates were low in comparison to hydriding rates. An overall hydrogen recovery of 35% was achieved after 16 hours at 500°C. At 600°C, the overall hydrogen recovery was 66% after 48 hours. Hydriding rates were obtained for titanium rod at 450 and 525°C. The maximum reaction rates for an initial system pressure of 705--709 torr were 0.026 and 0.40 Cm3 of H2 at STP/cm2-min at 450 and 525°C, respectively. Increasing the initial system pressure to 1863 torr increased the maximum reaction rate to 1.04 cm3 of H2 at STP/CM2-min at 525°C. In general, these rates are comparable to the rates obtained with zirconium sheet.
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Total Pages : 440 pages
Book Rating : 4.:/5 (3 download)
Download or read book Energy Research Abstracts written by and published by . This book was released on 1979 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Total Pages : 310 pages
Book Rating : 4.3/5 (91 download)
Download or read book Fusion Energy Update written by and published by . This book was released on 1978 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Total Pages : 608 pages
Book Rating : 4.:/5 (3 download)
Download or read book Energy Research Abstracts written by and published by . This book was released on 1979 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tritium Storage Development, Jan.-Mar. 1978 written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Battelle Memorial Institute. Office of Nuclear Waste Isolation
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ISBN 13 :
Total Pages : 118 pages
Book Rating : 4.3/5 (91 download)
Download or read book ONWI Library Reports List written by Battelle Memorial Institute. Office of Nuclear Waste Isolation and published by . This book was released on with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
![Download Tritium Storage Development. Progress Report No. 7, January--March 1976. [Polymer Impregnated Tritiated Concrete]. PDF Online Free](https://books.google.com/books/content/images/frontcover/tKJLAQAACAAJ?fife=w200-h370)
Download or read book Tritium Storage Development. Progress Report No. 7, January--March 1976. [Polymer Impregnated Tritiated Concrete]. written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymer impregnation was shown to greatly improve the leach rate of tritiated concrete specimens on a laboratory scale. This technique is proposed for the disposal of high-level tritiated aqueous waste. Work was directed towards the development of a soak impregnation technique for large-scale samples. Four cylindrical specimens of polymer impregnated tritiated concrete (PITC) 27 cm x 28 cm long, each containing 10 Ci tritium, were produced and buried without containers in individual lysimeters at the Savannah River Plant; they are being monitored. To date, no tritium release has been noted in water or air samples taken from these lysimeters. A duplicate PITC sample also containing 10 Ci tritium was placed in static leaching in distilled water. After thirty-two days of leaching, the average fraction tritium release rate was 1.82 x 10/sup -5/ per day. A technique using an injector to distribute aqueous tritiated waste in dry cement prior to impregnation is under development. This injector method is more compatible with the glove box operations in use with high level tritiated aqueous waste than end-over-end drum tumbling. Initial PITC specimens have been produced using this technique.
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Total Pages : 906 pages
Book Rating : 4.3/5 (129 download)
Download or read book Government reports annual index written by and published by . This book was released on 199? with total page 906 pages. Available in PDF, EPUB and Kindle. Book excerpt:
![Download Tritium Storage Development. Progress Report No. 11, January--March 1977. [Tritide in Metal Hydride and Tritiated Concrete-polymer]. PDF Online Free](https://books.google.com/books/content/images/frontcover/V2rJwQEACAAJ?fife=w200-h370)
Download or read book Tritium Storage Development. Progress Report No. 11, January--March 1977. [Tritide in Metal Hydride and Tritiated Concrete-polymer]. written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A large number of zirconium samples were hydrided in the laboratory under varying conditions of temperatures (300 to 900°C) and pressure (0 to 990 torr) for the purpose of defining the conditions needed for preparing hydrides of desirable mechanical properties. After these conditions were established, tritium-containing samples were prepared for leach testing. The construction of engineering-scale equipment for the tritium storage in metal hydride process has been started. Various concrete and polymer reinforcement materials, as well as a polyester additive to the styrene monomer, were investigated in an attempt to improve the physical properties of polymer-impregnated tritiated concrete.
![Download Tritium Storage Development. Progress Report No. 14, October--December 1977. [As a Tritide in a Metal Hydride]. PDF Online Free](https://books.google.com/books/content/images/frontcover/SQBHAQAACAAJ?fife=w200-h370)
Download or read book Tritium Storage Development. Progress Report No. 14, October--December 1977. [As a Tritide in a Metal Hydride]. written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydriding studies of zirconium on an engineering scale was continued for application to tritium storage systems. Two runs were made with zirconium sponge in the 297 to 319°C temperature range at a hydrogen flow rate of 2.72 cm3 at STP/g Zr-min. No significant difference in reaction rate was observed between 99.95 and 99.999 percent minimum purity hydrogen. Seven runs were made with 0.065-in.-thick zirconium sheet at a temperature range of 415 to 526°C. Some inconsistency was found in the zirconium sheet reaction data, which is probably the result of differences in buildup of diffusion barrier from specimen to specimen. The reaction with zirconium sheet was found to be more dependent on the degree of outgassing and hydrogen purity, compared with sponge. Maximum reaction rates were 0.080 and 1.34 cm3 of H2 at STP/cm2-min. for 99.95 and 99.999 percent minimum purity hydrogen, respectively.
![Download Tritium Storage Development. Progress Report No. 10, October--December 1976. [In Metal Hydride; Polymer-impregnated Tritiated Concrete]. PDF Online Free](https://books.google.com/books/content/images/frontcover/lOPYwQEACAAJ?fife=w200-h370)
Download or read book Tritium Storage Development. Progress Report No. 10, October--December 1976. [In Metal Hydride; Polymer-impregnated Tritiated Concrete]. written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Laboratory and engineering scale work has been initiated on the storage of tritium in a metal hydride. Laboratory hydriding apparatus has been assembled and a preliminary series of experiments was carried out on zirconium. Several engineering design concepts for the reaction and storage of tritium in a metal hydride are presented. The design of a three 3-in.-diam. bench scale reaction system is in progress. Developmental work is continuing on the injector technique for the fixation of tritium in polymer-impregnated concrete.
Download or read book Tritium Storage Development. Progress Report No. 13, July--September 1977 written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Engineering-scale operation was started on hydriding of zirconium for application to tritium storage systems. Eight runs were made with commercial-grade zirconium sponge at 338° to 499°C and 0 to 770 torr, hydrided to hydrogen-to-zirconium atom ratios up to 2. Reaction rates were determined for hydrogen flow rates of 2.72 to 9.24 cm3 at STP/g Zr-min. For each run, hydrogen pressure was plotted on a semilog scale against time and H/Zr atom ratio to elucidate the reaction mechanism in terms of reaction kinetics, diffusion, and equilibrium hydrogen vapor pressure. Lack of consistency in some of the runs is probably due to difference in the extent of the diffusion barrier formed on the metal because of reaction with oxygen and other contaminants. Static leach testing of zirconium sponge and rod in distilled water was continued; leach rates ranged from 8.9 x 10−7 to 1.7 x 10−6 cm/day for the 166 to 208 day leach period.
Author : U.S. Nuclear Regulatory Commission
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Total Pages : 908 pages
Book Rating : 4.3/5 (91 download)
Download or read book Radioactive Waste Processing and Disposal written by U.S. Nuclear Regulatory Commission and published by . This book was released on 1980 with total page 908 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Total Pages : 1702 pages
Book Rating : 4.E/5 ( download)
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1983-04 with total page 1702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
![Download Tritium Storage Development. Progress Report No. 9, July--September 1976. [Tritiated Concrete-polymer]. PDF Online Free](https://books.google.com/books/content/images/frontcover/YpqewgEACAAJ?fife=w200-h370)
Download or read book Tritium Storage Development. Progress Report No. 9, July--September 1976. [Tritiated Concrete-polymer]. written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Lysimeter testing of the polymer impregnated tritiated concrete (PITC) specimens at the Savannah River Plant has continued. After thirty-one weeks, a constant average tritium fraction release rate of 1.16 x 10−6 day−1 was reached in the percolate water with no measurable release into the air. Data from this experiment projected to long-term tritium releases estimate that a complete tritium release from the PITC will require 2,370 years and that the maximum fraction of the initially contained tritium present in the environment will be 2.76 x 10−3 after 17.7 years. A duplicate PITC specimen is in static leaching in distilled water. After 295 days, a constant tritium fraction release rate of 1.89 x 10−5 day−1 was determined for this specimen. Development of the injector technique for PITC production has proceeded with the fabrication of a large-scale 27 gallon PITC casting. This casting was sectioned longitudinally and examined for its physical appearance, integrity, and polymer distribution. A representative of Monsanto Mound Laboratory spent one week at Brookhaven National Laboratory for PITC production technology transfer.
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Total Pages : 1550 pages
Book Rating : 4.E/5 ( download)
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1975 with total page 1550 pages. Available in PDF, EPUB and Kindle. Book excerpt:
