Application of Mixing Length Theory to Two-Phase Flow Thermohydraulics in ATR

摘要

Steam-water thermohydraulic data obtained for ATR conditions in PNC's Heat Transfer Laboratory are analysed in terms of concepts previously developed from mixing length theory. Data analysed cover pressure loss for pipes, fuel bundles, spacers and other obstructions; average steam volume fraction; heat transfer behaviour in the approach to the boiling crisis; and the influence of wall roughness in pipes. The analysis has led to predictive equations for many of the conditions covered in the experimental program, and has provided insight into detailed two-phase mechanisms occuring under ATR conditions. (Atomindex citation 17:065583)