Columbia University Flow Instability Experimental Program, Volume 5: Single annulus tests, steady-state test program

Technical Report · Mon Jul 01 04:00:00 EDT 1991

DOI:https://doi.org/10.2172/10168214· OSTI ID:10168214

Dougherty, T; Maciuca, C; McAssey, Jr, E V; Reddy, D G; Yang, B W

This report presents results for the steady state portion of the finless single annulus test program. The objective of the experimental study was to investigate the onset of flow instability in an annular geometry similar to the MARK 22 reactor. The test program involved testing of both a finless or ribless heater and a ribbed heater. The latter program is currently underway and will be reported separately. For finless heater, testing was conducted in both a steady state and transient mode. The present report presents steady state results for a series of experiments with uniform and asymmetric heating. The demand curves obtained under uniform heating yielded OFI flow-rates which were slightly below those obtained for a circular tube geometry with the same L/D ratio; however, the single annulus had a hydraulic diameter which was approximately fifty percent larger than the circular tube. The asymmetric heating cases were selected to provide the same average power input as the uniform cases. The results for these tests indicated that the flow-rate at OFI increased with the degree of asymmetry.

• Research Organization: Westinghouse Savannah River Co., Aiken, SC (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC09-89SR18035
• OSTI ID: 10168214
• Report Number(s): WSRC-TR--93-686; ON: DE94015494; IN: CU-HTRF-T3A
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220600
220900
CIRCULAR CONFIGURATION
DATA ACQUISITION
FLUID FLOW
HEAT TRANSFER
HYDRAULICS
LOSS OF COOLANT
PRODUCTION REACTORS
REACTOR CHANNELS
REACTOR SAFETY
RESEARCH
TEST
TRAINING
PRODUCTION
IRRADIATION
MATERIALS TESTING REACTORS
STABILITY