Boots – shoes – and leggings
Patent
1995-03-22
1998-01-20
Voeltz, Emanuel T.
Boots, shoes, and leggings
73 6173, G05D 1600
Patent
active
057107173
ABSTRACT:
A new, improved method is disclosed for reliably and accurately predicting and adjusting vapor-liquid split ratios to branches of a piping network incorporating a plurality of impacting tee junctions for a wide range of two-phase steam or gas-liquid conditions representative of field distribution systems. The vapor velocity and liquid volume fraction of the two-phase entering an impacting tee junction are computed from measured pressure, quality and rate of a two-phase fluid entering the impacting tee junction. The velocities of the vapor split to each branch tee junction are computed from measured or computed vapor mass flow rates. The liquid volume fraction of the two-phase fluid exiting a branch or arm of the tee junction is then computed as a function of inlet vapor velocity and liquid volume fraction and from the vapor velocity exiting the branch or arm using an empirical correlation equation. Finally, the vapor mass fraction (or quality) of the two-phase fluid exiting the tee branch is computed from the liquid volume fraction exiting the branch.
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Griston Suzanne
Hong Ki Choong
Chevron U.S.A. Inc.
Peeso Thomas
Voeltz Emanuel T.
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