Centrifugal compressors station

Motor-driven, multistage reciprocating compressors have reportedly been the most popular choice for aeroderivatives. Motor-driven, oil-fiooded screw compressors are also used in some cases. High horsepower, multistage centrifugal compressors, similar to those used at many pipeline compressor stations, may be required for the newer heavy-duty units if the distribution pipeline pressure is insufficient (see Pipelines). Gas turbines have more stringent fuel-gas specifications in terms of cleanliness than do gas-fired boilers. Thus oil- and water-knockout systems, coalescing filters, and fine-mesh filters are used. 

On a typical pipeline, compressor stations are located at 81—161-km intervals and may contain up to 15 compressors. These stations may use either gas-turbine, reciprocating-engine, and/or motor-driven centrifugal compressors capable of boosting pipeline pressure and keeping gas moving at an average speed of about 24 km/h. Gas-turbine-driven units are the most popular. 

Compressor station, centrifugal or redprocating, installed station, compressor, eledric motor. TM cost = 2 850000 at drive power = 1000 kW with n = 0.65 for the range 150-2500 and 18000000 at drive power = 10000 kW with n = 0.70 for the range 3000-13 000. 

Turbines are a common feature on process plant, where they provide economical drives for rotating machinery, particularly centrifugal and axial pumps and compressors, as well as electrical generators in power stations. They use the expansion of hot, high-pressure gas or steam to produce mechanical power. 

Compressor machines are used to increase the pressure of a gas by mechanically reducing its volume within its case. Air is most frequently compressed, but natural gas, oxygen, and nitrogen are also compressed Positive-displacement, centrifugal, and axial compressors are the three most common types used in process facilities and pipeline stations. They can handle large volumes of gas in relatively small equipment and may have a variety of drives (e.g., elearic motors and steam or gas turbines). 

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