A STUDY OF CRITICAL HEAT-FLUX FOR LOW FLOW OF WATER IN VERTICAL ROUND TUBES UNDER LOW-PRESSURE

The critical heat flux (CHF) phenomenon has been investigated for a stable flow of water in vertical tubes at low pressure and velocity conditions. Experiments have been performed with round tubes with diameters of 0.006 m and 0.0088 m for mass fluxes below 220 kg/m2 s under atmospheric pressure. Experimental results are discussed with special reference to the physical mechanism leading to the CHF at very low flow conditions. Finally a new design correlation is proposed based on the combination of the present data and other CHF data available in the literature. Assessments show reasonable agreement of predictions with experiments.
Publisher
ELSEVIER SCIENCE SA LAUSANNE
Issue Date
1991-12
Language
ENG
Keywords

FORCED-CONVECTION SYSTEMS; ATMOSPHERIC-PRESSURE; RECTANGULAR CHANNEL; BURNOUT; CHF

Citation

NUCLEAR ENGINEERING AND DESIGN, v.132, no.2, pp.225 - 237

ISSN
0029-5493
URI
http://hdl.handle.net/10203/58382
Appears in Collection
NE-Journal Papers(저널논문)
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