Compressors for LNG
Siemens compressors have a long tradition of excellence.
In applications as wide as the process and oil and gas
industries, they have earned a reputation of technological
leadership and dependability. In many areas, Siemens
enjoys a position of global market leader, including boil-off
gas compression.
For main refrigerant-gas compression of LNG process plants,
Siemens offers proven single-shaft refrigeration compressor
trains in all appropriate ratings for E-LNG plants.
These include horizontally or vertically split designs for
all common flow rates and pressure ratios. The features
include dry gas seals and hydrodynamic or active magnetic
bearings from reputable vendors, and state-of-the-art
rotor-dynamic design and verification tools to meet the
industry’s tough performance criteria. For new processes
and larger plant sizes, existing aerodynamic, rotor-dynamic
and casing designs are taken as a basis and tested with
scaled models to accurately predict their performance,
reducing planning risks to the minimum.
Defining the art of
compressor technology,
Siemens compression
solutions are
available for all stages
of the LNG supply
chain, from gas treatment
through liquefaction
to boil-off gas
compression.
Mastering rotor dynamicsFull rotor stability over the entire operating-speed range,
including starting, is crucial to obtain optimum compressor
performance and reliability. Siemens uses advanced analytical
and modeling tools to predict rotor dynamics, taking
into account the influence of gas forces from labyrinths.
Advanced standardization of rotor designs allows for
detailed design already in the planning phase of a project.
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