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Gas compressors can be designed to match any
set of process conditions, however, a compressor has to often be designed for a specific gas turbine with a very narrow power envelope.
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 a compressor which satisfies the
process requirements as well as the engine power.
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. The model verifies the compressor absorbed power and engine available power for the full
range of operating ambient conditions. This ensures negative power margins are avoided.
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