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Title: Adaptation of a Freon-12 critical heat flux correlation to correlate water data from uniformly heated vertical tubes, Part I - based on critical heat flux data for water at pressures of 3 to 14 MPa.
Authors: Green, WJ
Issue Date: Dec-1981
Publisher: Australian Nuclear Science and Technology Organisation
Abstract: Comparisons have been made between experimental critical heat flux (CHF) data for upflow of water in uniformly heated vertical tubes and values calculated from an empirical CHF correlation developed from Freon-12 data. When this correlation is re-evaluated to account for vapour Prandtl number effects very good agreement is obtained between experimental data and calculated values over a wide range of coolant conditions. Comparison of values calculated from the revised correlation with 2063 sets of CHF data obtained from experiments with water in vertical uniformly heated tubes shows a mean ratio of the calculated to experimental CHF of 0.82 and an r.m.s. error of 5.8 per cent for the following coolant conditions: (1) local pressure of 3.4 to 12 MPa; (2) mass flux greater than approx. 300 kg s-1m - 2 and (3) thermal equilibrium value of exit quality greater than 0.1.
ISBN: 0642597391
Appears in Collections:Scientific and Technical Reports

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