Modeling Of Tritium Transport In A Pin Type Solid Breeder Blanket PDF Download
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Author | : Rodger Martin |
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Total Pages | : 42 |
Release | : 1986 |
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Download Modeling of Tritium Transport in a Pin-type Solid Breeder Blanket Book in PDF, ePub and Kindle
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Release | : 1986 |
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Download Modelling of Tritium Transport in a Pin-type Solid Breeder Blanket Book in PDF, ePub and Kindle
This study supplements a larger study of a solid breeder blanket design featuring lithium ceramic pins. This aspect of the study looks at tritium transport, release, and inventory within this blanket design. Li2O and .gamma.-LiAlO2 are the two primary candidates for ceramic solid breeders. .gamma.-LiAlO2 was chosen for this blanket design due to its higher structural stability. Analysis of tritium behavior in solid breeder blankets is of great importance due to its impact on several critical issues: the generation of an adequate amount of fusion fuel, the safety-related issue of keeping radioactive blanket inventories as low as possible, and the release, purge, and economical processing of the bred tritium without undue contamination of the coolant and other reactor structures.
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Release | : 1985 |
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Download Modeling of Tritium Transport in Lithium Aluminate Fusion Solid Breeders Book in PDF, ePub and Kindle
Lithium aluminate is a candidate tritium-breeding material for fusion reactor blankets. One of the concerns with using LiAlO2 is tritium recovery from this material, particularly at low operating temperatures and high fluences. The data from various tritium release experiments with .gamma.-LiAlO2 and related materials are reviewed and analyzed to determine under what conditions bulk diffusion is the rate-limiting mechanism for tritium transport and what the effective bulk diffusion coefficient should be. Steady-state and transient models based on bulk diffusion are developed and used to interpret the data. Design calculations are then performed with the verified models to determine the steady-state inventory and time to reach equilibrium for a full-scale fusion blanket.
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Total Pages | : 1284 |
Release | : 1987 |
Genre | : Power resources |
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Download Energy Research Abstracts Book in PDF, ePub and Kindle
Author | : |
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Total Pages | : 160 |
Release | : 1986 |
Genre | : Controlled fusion |
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Download Fusion Energy Update Book in PDF, ePub and Kindle
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Total Pages | : 30 |
Release | : 1994 |
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Download Progress in Tritium Retention and Release Modeling for Ceramic Breeders Book in PDF, ePub and Kindle
Tritium behavior in ceramic breeder blankets is a key design issue for this class of blanket because of its impact on safety and fuel self-sufficiency. Over the past 10-15 years, substantial theoretical and experimental efforts have been dedicated world-wide to develop a better understanding of tritium transport in ceramic breeders. Models that are available today seem to cover reasonably well all the key physical transport and trapping mechanisms. They have allowed for reasonable interpretation and reproduction of experimental data and have helped in pointing out deficiencies in material property data base, in providing guidance for future experiments, and in analyzing blanket tritium behavior. This paper highlights the progress in tritium modeling over the last decade. Key tritium transport mechanisms are briefly described along with the more recent and sophisticated models developed to help understand them. Recent experimental data are highlighted and model calibration and validation discussed. Finally, example applications to blanket cases are shown as illustration of progress in the prediction of ceramic breeder blanket tritium inventory.
Author | : Hongjie Zhang |
Publisher | : |
Total Pages | : 102 |
Release | : 2010 |
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Download Integrated Multi-physics Simulation on Tritium Permeation in the Solid Breeder Blanket Book in PDF, ePub and Kindle
Author | : Fabrizio Franza |
Publisher | : KIT Scientific Publishing |
Total Pages | : 92 |
Release | : 2013 |
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ISBN | : 3731500124 |
Download Tritium Transport Analysis in HCPB DEMO Blanket with the FUS-TPC Code (KIT Scientific Reports ; 7642) Book in PDF, ePub and Kindle
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Release | : 1987 |
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Download Mathematical Models for Predicting Tritium Transport in Lithium Ceramics Book in PDF, ePub and Kindle
Tritium retention and release data for lithium ceramics (Li2O, LiAlO2, and Li4SiO4) are available from in-reactor and post-irradiation anneal tests on single crystals, powders, and sintered products. With the exception of the single-crystal tests in which bulk diffusion is the rate-limiting release mechanism, it is very difficult to interpret the results of these tests and extrapolate the results to design conditions for a fusion solid-breeder blanket. Mathematical models are presented for various bulk, grain-boundary, and free-surface phenomena to aid in the interpretation and extrapolation of the data. 24 refs., 6 figs., 4 tabs.
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Release | : 1985 |
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Download Tritium Percolation, Convection, and Permeation in Fusion Solid Breeder Blankets Book in PDF, ePub and Kindle
Models are developed to describe the percolation of released tritium through the breeder interconnected porosity to the purge stream, convection of tritium by the helium purge stream, and leakage or permeation of tritium through the structural material to the primary coolant system. Important parameters in the models are tritium generation rate, breeder microstructure, tritium species in the gas phase, temperatures, tritium diffusivities and permeabilities, and effectiveness of oxide barriers.