Heat Transfer Research

ISSN for PRINT: 1064-2285

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2003, Volume34

V. D. Chaika
Far Eastern Technical Institute of Fish Industry, Vladivostok, Russia

Calculation of vapor content of a two-phase flow is made for water boiling on single horizontal copper tubes 10, 16, 24, 34, and 70 mm in diameter and also on a five-row-bundle of copper tubes 34 mm in diameter at a pressure of 26 < p < 200 kPa and specific heat flux of q — onset of nucleation and up to 200 kW/m². The characteristics of the process of boiling simultaneously in two directions are obtained by high-speed filming; the formulas are obtained. Empirical nondimensional correlations are based on various experimental results. The formulas take into account the effect of side tubes and a tube pitch.

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