Abstract

This study presents updating of two existing physical models of dryout in annular-dispersed flow regime according to the updated data of the experimental studies. Relations for critical heat flux at high mass vapour qualities, in two ranges of mass flow rates were considered. The calculation results were compared with the critical heat flux look-up tables at full range of mass flow rates. The comparing showed satisfactory agreement of results in the ranges of regime parameters 0.6 ⩽ x ⩽ 0.9; 50 ⩽ ρω ⩽ 8000 kg m-2 s-1; 0.1 ⩽ p ⩽ 20 MPa.

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