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Die Berechnung des Druckverlustes in der dreiphasigen Schwallströmung von Wasser, Öl und Luft
Author(s) -
HermStapelberg Heinrich,
Mewes Dieter
Publication year - 1992
Publication title -
chemie ingenieur technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 36
eISSN - 1522-2640
pISSN - 0009-286X
DOI - 10.1002/cite.330640208
Subject(s) - slug flow , ternary operation , pressure drop , thermodynamics , flow (mathematics) , isothermal flow , flow coefficient , drop (telecommunication) , mechanics , materials science , chemistry , two phase flow , open channel flow , physics , telecommunications , computer science , programming language
Abstract Calculation of Pressure Drop in Ternary Slug Flow of Water, Oil, and Air. Ternary flow of two immiscible liquids and a gas have hardly been studied up to the present although they frequently occur in petroleum production and in boiling mixtures of liquids. The article first considers known facts about the various kinds of binary flow as limiting cases of ternary flow with special consideration of slug flow. The article then reports new experimental results on ternary flow of oil, water, and air. The frictional pressure drop for ternary flow can be determined with the aid of known calculation procedures valid for binary flow. The limits of the observed forms of flow can be read from a flow map extended to include ternary flow. The pressure drop of ternary slug flow cannot be calculated without a knowledge of the form of flow. The frequency of slug movement is calculated for ternary flow by considering the pressure drop on binary flow of oil and water and the modified slug formation of liquids with higher viscosity. For small volume flows of gas the slug is almost ungassed. The pressure drop can be calculated with considerable accuracy in this range. At higher gas volume flows this becomes possible on considering measured slug lengths.