Two-phase flow pattern
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I’ve been learning about *two-phase flow pipe diameter selection recently. During my studies, I came across two different statements. Which one is correct?
The first requirement is that it can be a circular flow. The second theory is to avoid circular flow. May I ask how to make the choice?
Not familiar; I’ll just watch experts explain it.
When designing the pipe diameter, we generally increase it and emphasize the requirements regarding pipe slope； Since there are upper limits on the flow velocity within pipes, while generally no lower limits apply, we can increase the pipe diameter to an appropriate extent. This allows us to avoid the several flow patterns mentioned earlier: with a lower flow velocity and a larger pipe diameter, the liquid does not form liquid pockets, and the static electricity problems associated with high flow velocities can be effectively reduced.
HG/20570-95 (Technical Specifications for the Design of Process System Engineering), and then there is also \"Design and Installation of Process Piping in Petrochemical Industries\" (Second Edition)