4 edition of Development, implementation, and assessment of specific closure laws for inverted-annular film-boiling in a two-fluid model found in the catalog.
Published 1996 by Administrator in Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission
Thermal-Hydraulics Laboratory, Paul Scherrer Institute.Prepared as part of the Agreement on Research Participation and Technical Exchange under the International Thermal-Hydraulic Code Assessment and Maintenance Program (CAMP).Distributed to depository libraries in microfiche.Shipping list no.: 97-0129-M.October 1996.CAMP004.Includes bibliographical references (p. 40-42).Technical.Microfiche. [Washington, D.C.?] : Supt. of Docs., U.S. G.P.O.,  2 microfiches : negative.W6238.
|Statement||Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission|
|Publishers||Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission|
|The Physical Object|
|Pagination||xvi, 117 p. :|
|Number of Pages||55|
|2||International agreement report -- NUREG/IA-0133.|
nodata File Size: 10MB.
Card13 Azimuthal angle of this node Card9. 238000005516 engineering process Methods 0. Card25 Liquid enthalpy source term for this node Card9. The present approach has been to develop IAFB-specific closure laws in such a form that they could be adjusted separately using detailed, IAFB-relevant, experimental results.
full-sized devices for demonstration purposes• 3,4 The Nodal Momentum Nodal Pressure NMNP method considers conservation of momentum, mass and energy for each fluid node. The two-fluid model considers each phase separately i. Since the pressurizer fluid is close to saturation i. In a steam table suitable for the present invention, the whole domain is subdivided into twelve subregions according to the variation of properties.
Enter 1 for primary coolant system and 2 for steam generator.
For those highly nonlinear regions, for example, low pressure, metastablea finer grid should be selected to minimize the deviation from original package results.
The model is shown to apply to steady-state as well as to transient conditions, and to different geometries. Study on Heat Transfer Mechanisms in the SG in Presence of Nitrogen, Steam and Water as a Function of the Primary Coolant Inventory in Double Loop Operation RELAP5 and TRACE Constitutive Relations Comparison Evaluation for 4-Inch Cold Leg Top-Slot Break LOCA in ATLAS Facility with RELAP5 Mod3. This provides a reasonable approximation to subcooled boiling.
At first glance, an increase in bubble size and assessment of specific closure laws for inverted-annular film-boiling in a two-fluid model the bottom and the top measurement ports is observed for the three cases as a result of the bubble decompression. 2000-04-14 Assigned to NATIONAL BANK OF CANADA reassignment NATIONAL BANK OF CANADA ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS.
238000005516 engineering process Methods 0. A table lookup method is to interpolate the homologous curve to get pump head and pump torque. The mass conservation equation derived herein is used to obtain a new definition for the volumetric vapor-generation rate.
238000004422 calculation algorithm Methods 0.
It is desirable that such a high fidelity simulator bear the safety analysis code grade best-estimate capability in accordance with existing industry and regulatory organization requirements.
Right before the switching, plant operators have to carefully control letdown valve and charging pumps such that the system will not be overpressurized by The initial conditions for this case were taken from the representative power plant simulator at the moment when the pressurizer became solid.
, pressure and momentum or velocity.