Sammendrag
The development of wet gas compressors will enable
increased oil and gas production rates and enhanced profitable
operation by subsea well-stream boosting. A more fundamental
knowledge of the impact of liquid is essential with regard to the
understanding of thermodynamic and fluid dynamic
compressor behavior.
An open-loop impeller test facility was designed to
investigate the wet gas performance, aerodynamic stability, and
operation range. The facility was made adaptable for different
impeller and diffuser geometries.
In this paper, the wet gas test facility and experimental
work concerning the impact of wet gas on a representative fullscale
industrial impeller are presented. The centrifugal
compressor performance was examined at high gas volume
fractions and atmospheric inlet conditions. Air and water were
used as experimental fluids. Dry and wet gas performance was
experimentally verified and analyzed. The results were in
accordance with previous test data and indicated a stringent
influence of the liquid phase. Air/water tests at atmospheric
conditions were capable of reproducing the general
performance trend of hydrocarbon wet gas compressor tests at
high pressure.
Key words: Wet gas performance, impeller test facility
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