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CRBRP sodium fire tests. Quarterly technical progress report, October-December 1979

Description: The objective of the small-scale group of tests is to demonstrate that sodium will drain from the surface of the fire suppression deck into the catch pan without interference during a spill event, and to demonstrate that burning is terminated following the spill event by the accumulation of combustion products inside the drain pipes. The results of this series of tests will be used to validate the catch pan fire suppression deck design concept based on the criteria that sodium will drain freely from the surface of the fire suppression deck and that burning is terminated in an acceptably short time (less than or equal to 36 h). The objective of the large-scale group of tests is to provide experimental data on the consequences of sodium spills using prototypic leak rates and to demonstrate the effectiveness of a large-scale fire suppression Q-deck assembly.
Date: February 29, 1980
Partner: UNT Libraries Government Documents Department

Breeder reactor fuel development in the USA

Description: An overview of the National LMFBR Fuel Development Program is presented which includes a brief review of fuel performance concerns and issues and highlights of current fuel testing activities in EBR-II and the FFTF.
Date: March 29, 1982
Creator: Gibby, R.L. & Mahagin, D.E.
Partner: UNT Libraries Government Documents Department

Protected air-cooled condenser for the Clinch River Breeder Reactor Plant

Description: The long term residual heat removal for the Clinch River Breeder Reactor Plant (CRBRP) is accomplished through the use of three protected air-cooled condensers (PACC's) each rated at 15M/sub t/ following a normal or emergency shutdown of the reactor. Steam is condensed by forcing air over the finned and coiled condenser tubes located above the steam drums. The steam flow is by natural convection. It is drawn to the PACC tube bundle for the steam drum by the lower pressure region in the tube bundle created from the condensing action. The concept of the tube bundle employs a unique patented configuration which has been commercially available through CONSECO Inc. of Medfore, Wisconsin. The concept provides semi-parallel flow that minimizes subcooling and reduces steam/condensate flow instabilities that have been observed on other similar heat transfer equipment such as moisture separator reheaters (MSRS). The improved flow stability will reduce temperature cycling and associated mechanical fatigue. The PACC is being designed to operate during and following the design basis earthquake, depressurization from the design basis tornado and is housed in protective building enclosure which is also designed to withstand the above mentioned events.
Date: May 29, 1981
Creator: Louison, R. & Boardman, C.E.
Partner: UNT Libraries Government Documents Department

LMFBR fuel component costs

Description: A significant portion of the cost of fabricating LMFBR fuels is in the non-fuel components such as fuel pin cladding, fuel assembly ducts and end fittings. The contribution of these to fuel fabrication costs, based on FFTF experience and extrapolated to large LMFBR fuel loadings, is discussed. The extrapolation considers the expected effects of LMFBR development programs in progress on non-fuel component costs.
Date: October 29, 1981
Creator: Epperson, E.M.; Borisch, R.R. & Rice, L.H.
Partner: UNT Libraries Government Documents Department

High-temperature piping design technology. Quarterly technical progress report, January--March 1977. [LMFBR]

Description: Progress is reported in the following LMFBR piping design studies: development of a long range plan to secure piping integrity, collection of piping failure and construction defect data, analysis of systems with prior successful operating history, evaluation of sensitivity of piping design margins to variability in materials and geometry, and high cycle fatigue behavior at elevated temperature.
Date: April 29, 1977
Partner: UNT Libraries Government Documents Department

Simulation of boiling pools with internal heat sources by gas injection. [LMFBR core meltdown]

Description: Heat transfer from the sides and bottom of an open non-boiling liquid pool with spatially uniform internal gas injection was studied experimentally, both in transient and in steady state. The results were compared with experimental data for a boiling pool without permanent gas injection undertaken at Argonne National Laboratory. Typical Nusselt number versus Reynolds number plots showed that heat transfer rates were much higher in the gassy pool due to more efficient circulation. A correction was applied to estimate the surface evaporation effect under boiling conditions. Bubble size and distribution effects controlled the heat transfer rates. Vertical void fraction profiles were inferred from local static pressure measurements. A modified Grashof number, in terms of the average void fraction, was also used to correlate the data for horizontal heat flow. The bottom and side heat loss rates were about equal, which would indicate that the pool might retain its shape as it sinks into the support material.
Date: July 29, 1977
Creator: Luk, A. C. H.; Ganguli, A. & Bankoff, S. G.
Partner: UNT Libraries Government Documents Department

Computational features of the CACECO containment analysis code. [LMFBR]

Description: A code, CACECO, has been written to assist in the analysis of containment situations peculiar to sodium cooled reactors. Typically, these situations involve relatively slow energy release processes and chemical reaction heat. Two examples are given to illustrate some of the code's features. These particular cases illustrate the potential for hydrogen formation in the containment building, but show that time is available to take corrective action. The code is suitable for other problems involving passive heat absorption in massive structures over long periods of time.
Date: May 29, 1975
Creator: Peak, R. D. & Stepnewski, D. D.
Partner: UNT Libraries Government Documents Department