Accession Number : AD0437888

Title :   HIGH VELOCITY CONDENSING.

Descriptive Note : Rept. for 1 Mar 62-31 Jan 63,

Corporate Author : UNITED NUCLEAR CORP WHITE PLAINS N Y

Personal Author(s) : Hawkins,T. D. ; Hankel,R.

Report Date : APR 1964

Pagination or Media Count : 147

Abstract : A program has been conducted to investigate, analytically and experimentally, changes in stagnation conditions of a condensing fluid moving at high subsonic or supersonic velocities. The results of this investigation have shown that, under certain heat transfer and flow conditions, a rise in the stagnation pressure of the flowing stream can be achieved. The analytical studies have included homogeneous nad nonhomogeneous flow models. Calculations of stagnation (pressure, temperature, and quality) have been performed for liquid-vapor mixtures of potassium and water using both flow models. Analysis has also been made of the change in stream properties of a two-phase mixture across a normal shock. An apparatus, using steam as the condensing fluid, was constructed to perform experiments for evaluating the changes in stagnation pressure predicted by the theory. Experimental data are in good agreement with the theory, and confirm the theoretical prediction that a net gain in stagnation pressure can be obtained under specified flow conditions. (Author)

Descriptors :   (*FLUID FLOW, CONDENSATION), PHASE STUDIES, LIQUIDS, VAPORS, POTASSIUM, WATER, STEAM, STAGNATION POINT, PRESSURE, TEMPERATURE, SUBSONIC FLOW, SUPERSONIC FLOW, COMPRESSIBLE FLOW, SHOCK WAVES, ENERGY CONVERSION, RANKINE CYCLE, PIPES, MATHEMATICAL ANALYSIS, THEORY, STEAM CONDENSERS, MODEL TESTS

Distribution Statement : APPROVED FOR PUBLIC RELEASE