TWO-PHASE HEAT TRANSFER, TWO-PHASE BURNOUT. Final Report
Technical Report
·
OSTI ID:4224221
A burnout model has been succesefully applied to burnout heat flux data reported for the flow of steamwater mixtures in round tubes and channels with uniform and hot patch heating. The model requires the fitting of characteristic constants which can be evaluated from a set of burnout heat flux versus flow rate at a given subcooling and channel geometry. Two-phase local heat transfer coefficients were measured for steam-water flows up to pressures of 90 psia, maximum total flow rates of 182,000 lb/hr sq. ft., and heat fluxes up to 50,200 Btu/hr sq. ft in a horizontal 1/4-in. brass pipe. The coefficients increased with increasing qualities up to qualities as high as 0.98. In the region of 0.98 to 1.00, the coefficients decreased to values approaching single phase runs. Brief notes are included on thc extensive comparison which have been made of the data with the literature and of other models proposed. (auth)
- Research Organization:
- Minnesota. Univ., Minneapolis. Inst. of Tech.
- NSA Number:
- NSA-13-022845
- OSTI ID:
- 4224221
- Report Number(s):
- AECU-4305
- Country of Publication:
- United States
- Language:
- English
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