Film thickness, entrainment, and pressure drop in upward annular and dispersed flow

Journal Article · Sat Sep 01 04:00:00 EDT 1973 · AIChE J.; (United States)

DOI:https://doi.org/10.1002/aic.690190533· OSTI ID:6539692

Hughmark, G A

Correlations for prediction of film, thickness, entrainment, and pressure drop are required for modeling of annular and dispersed flow in tubular heat transfer and reactor systems. Existing correlations are rather poor predictors of film thickness and entrainment. The relatively large quantity of experimental data for upwardly flow at isothermal conditions provides the basis to develop these correlations. This note represents a design method that has been developed and used in a computer program to predict these variables from the input variables of the mass flow rates of the gas and liquid phases, tube diameter, and fluid physical properties. The discussion is developed in the following areas: (1) film thickness; (2) entrainment; (3) pressure drop; and (4) solution procedure. (22 refs.)

• Research Organization: Ethyl Corp.
• OSTI ID: 6539692
• Journal Information: AIChE J.; (United States), Journal Name: AIChE J.; (United States) Vol. 19:5; ISSN AICEA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
COMPUTER CALCULATIONS
CORRELATIONS
DIMENSIONS
ENERGY SOURCES
ENERGY TRANSFER
FILMS
FLUID FLOW
FLUIDS
FORECASTING
FOSSIL FUELS
FUEL GAS
FUELS
GAS FLOW
GAS FUELS
GASES
HEAT TRANSFER
ISOTHERMAL PROCESSES
MATHEMATICAL MODELS
NATURAL GAS
PETROLEUM
PHYSICAL PROPERTIES
PRESSURE DROP
RECOVERY
THICKNESS
TUBES