UPFLOW BURNOUT DATA FOR WATER IN RECTANGULAR CHANNELS AT PRESSURES FROM 600 TO 1870 PSIA

Technical Report · Sun Sep 01 04:00:00 EDT 1957

OSTI ID:4341046

Troy, M

Because of interest in operating reactors at pressures below 2000 psia, upflow burnout tests were performed on water at pressures from 600 to 1870 psia in vertical rectangular channels having length-to-equivalent diameter ratios (L/ D) of 33, 153, and 242. (A total of about 90 burnout heat flux points were obtained, ranging from 0.134 to 2.26 x 10/sup 6/ Btu/hr-ft/sup 2/). The ranges of experimental variables (other than pressure) were mass velocities from 0.178 to 4.0 x 10/sup 6/ lb/hr-ft/sup 2/, inlet subcooling from 13 to 475 deg F, and exit qualities from 3 to 100% (See Table 1). In general, for all channels and pressures the burnout heat flux at given enthanlpy increased as the pressure decreased. For the channel of L/D = 153 (at pressures below 2000 psia) the burnout heat flux at a given burnout point enthalpy appeared to increase from 40 to 110% with an increase in inlet subcooling of about 200 deg F. No such effect was observed with the other channels at any other conditions. The ranges of the ratio of measured to calculated burnout heat fiux (calculated by the existing 2000 psia Thermal Resign Criteria, Ref. 8), were 3.2 to 10.0 for the 0.101 in. x 1 in. x 6 in. channels, 1.3 to 7.3 for the 0.097 in. x 1 in. x 27 in. channels and 1.2 to 5.5 for the 0.059 in. x 1 in. x 27 in. channels. Efforts are underway to formulate new burnout design equations for these pressures below 2000 psia. (auth)

• Research Organization: Westinghouse Electric Corp. Atomic Power Div., Pittsburgh
• NSA Number: NSA-12-004799
• OSTI ID: 4341046
• Report Number(s): WAPD-TH-321
• Country of Publication: United States
• Language: English

Related Subjects

BOILING
BURNOUT
CONFIGURATION
ENGINEERING
ENTHALPY
EQUATIONS
FLUID FLOW
HEAT TRANSFER
MEASURED VALUES
OPERATION
PIPES
PLANNING
PRESSURE
REACTORS
THERMODYNAMICS
VELOCITY
WATER