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Início Arquivos Thermal Letter Representantes Futuras reuniões Assembléia das Conferências Internacionais de Transferência de Calor
International Heat Transfer Conference 3

ISSN: 2377-424X (online)
ISSN: 2377-4371 (flashdrive)

TWO-PHASE PRESSURE LOSS ACROSS ABRUPT CONTRACTlONS AND EXPANSIONS, STEAM-WATER AT 600 TO 1400 PSIA

Earl Janssen
General Electric Company Atomic Power Equipment Department San Jose, California

DOI: 10.1615/IHTC3.380
pages 13-23

Resumo

The two-phase pressure drop was measured for several contraction and expansion geometries, using steam and water at the following conditions: Pressure, 600 to 1400 psia (42.2 to 98.4 kg/cm2); Mass Flux, 0.25 × 106 to 2.0 × 106 lb/hr·ft2 (33.9 to 271.2 g/sec·cm2); Quality, 0 to 90 percent; and Flow Orientation, vertical upward, horizontal, vertical downward. High speed moving pictures were taken of the flow pattern. Models were developed that predict values for the pressure loss across contractions and expansions which are in good agreement with measured values.

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