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Gas compressors can be designed to match any
set of process conditions, however this is not possible when
selecting gas turbines. The engine design can not be specified,
and has to be selected from a narrow range of gas turbine models
available from manufacturers.
This has a very important knock-on effect on the choice of the
gas compression system as a whole. What this means is that
instead of selecting compressors to match the process
requirements, it becomes necessary to select the gas turbine
first and then try to build a compressor which satisfies the
process requirements.
This is a complex activity because the power
of the gas turbine is not constant, but it varies greatly
depending on ambient temperatures.
MSE has developed integrated models of compressors and gas
turbines, which are used to optimise a compressor design for a
selected gas turbine and verifies its performance for the full
range of operating ambient conditions, minimising production
losses which often occur when the engines are not properly
selected.
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