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More than one phase or sine wave is generated. Some generators produce two, or more often, three phase power.

Related Terms

MULTIPHASE FRACTION METER

A device for measuring the phase area fractions of oil, gas and water of a multiphase flow through a cross-section of a conduit.

PHASE FLOW RATE

The amount of one phase of a multiphase flow flowing through the cross-section of a conduit in unit time. The phase flow rate may be specified as phase volume flow rate or as phase mass flow rate.

SLIP VELOCITY

The phase velocity difference between two phases.

SLIP RATIO

The ratio between two phase velocities.

MULTIPHASE FLOW

Two or more phases flowing simultaneously in a conduit; this document deals in particular with multiphase flows of oil, gas and water.

MULTIPHASE METER

A device for measuring the phase area fractions and flow rates of oil, gas and water of a multiphase flow through a cross-section of a conduit. It is necessary to specify whether the multiphase meter measures volume or mass flow rates.

PHASE VELOCITY

The velocity of one phase of a multiphase flow at a cross-section of a conduit. It may also be defined by the relationship (Superficial phase velocity * Phase area fraction).

SUPERFICIAL PHASE VELOCITY

The flow velocity of one phase of a multiphase flow, assuming that the phase occupies the whole conduit by itself. It may also be defined by the relationship (Phase volume flow rate / Pipe cross-section).

MIXTURE PHASE

In this document, “phase” is used in the sense of one constituent in a mixture of several. In particular, the term refers to either oil, gas or water in a mixture of any number of the three.

PHASE VOLUME FRACTION

The phase volume flow rate of one of the phases of a multiphase flow, relative to the multiphase volume flow rate.
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