A computer code for calculating subcooled boiling pressure drop in forced convective tube flows

Technical Report · Thu Dec 01 04:00:00 EST 1988

DOI:https://doi.org/10.2172/5910189· OSTI ID:5910189

Wong, Christopher F.

A calculation procedure, embodied in a computer code, was developed to calculate the convective subcooled boiling (SCB) pressure drop of water flowing in small diameter vertical or horizontal tubes under the condition of high heat fluxes. The present investigation is an extension of previous work performed by C.T. Kline in 1985. The computer code, presented then and now, numerically integrates the single-phase and separated-flow-model pressure drop equations from the inlet to the outlet of a heated tube. Efforts in this study were concentrated on identifying weaknesses in Kline's best code version and investigating his recommendations for future work. The calculation procedures for each flow regime in the tube were modified to give better overall results. New work focused primarily on the partially-developed boiling (PDB) and fully-developed boiling (FDB) regimes. The pressure drop predictions from each code version were compared to the experimental pressure drop results from the experimental investigations of Dormer/Bergles, Owens/Schrock, and Reynolds. 33 refs., 55 figs., 2 tabs.

• Research Organization: California Univ., Davis, CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5910189
• Report Number(s): UCRL-21165; ON: DE89015709
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
BOILING
COMPUTER CODES
COMPUTERS
CONVECTION
DIGITAL COMPUTERS
ENERGY TRANSFER
FLOW MODELS
FLUID FLOW
HEAT FLUX
HEAT TRANSFER
MASS TRANSFER
MATHEMATICAL MODELS
MICROCOMPUTERS
NUCLEATE BOILING
PHASE TRANSFORMATIONS
PRESSURE DROP