Abstract
A correlation is presented for prediction of CHF (critical heat flux) during upward flow of saturated liquids across single cylinders. The correlation was verified against all available published test data. It includes six fluids (water, R-12, R-113, methanol, isopropanol, acetone), tube diameter 0.26 - 19.1 mm, reduced pressure 0.0046 - 0.3554, liquid velocities 0.01 - 10.7 m/s, and CHF 0.14 – 10.7 MW/m2. The new correlation predicts 558 data points from 62 data sets from 15 sources with mean absolute deviation of 18.0%. The same data were also compared to seven other published correlations; their MAD ranged from 24.1% to 287.0%.
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