Thermal and fluid mixing in a 1/2-scale test facility. Volume 1. Facility and test design report. Final report

Technical Report · Mon Jul 01 00:00:00 EDT 1985

OSTI ID:5531064

Dolan, F X; Valenzuela, J A

This report describes the test facility and program designed to measure fluid mixing and heat transfer in a 1/2-scale model of the cold leg downcomer and lower plenum of a pressurized water reactor under conditions of interest to the issue of pressurized thermal shock. Several cold leg assemblies are modeled and the downcomer arrangement can be altered to match vendor-specific configurations. The facility can be operated to model flow rates based on Froude number of the injected flow in the cold leg and with steady or transient inlet boundary conditions. Extensive instrumentation is provided to measure flow rates, temperatures and pressure at the facility boundaries and for detailed measurements of temperature, velocity and heat transfer data in the cold leg and downcomer models. The test data are monitored and recorded by a computer data acquisition system that is also used for post-test data reduction and plotting. The planned test matrix includes 75 tests with variations in cold leg and downcomer geometries, loop and HPI flow rates, cold leg Froude number and loop to HPI density difference. Test results will be reported in a series of quick look and final report.

• Research Organization: Creare, Inc., Hanover, NH (USA)
• OSTI ID: 5531064
• Report Number(s): EPRI-NP-3802-Vol.1; ON: TI85920739
• Country of Publication: United States
• Language: English

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