Rotating Equipment: Pumps, Compressors, & Turbines/Expanders

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Topics

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Fundamentals

▪ Starting relationships

• Thermodynamic relationships

• Bernoulli’s equation

▪ Simplifications

• Pumps – constant density compression

• Compressors – reversible ideal gas compression

▪ Use of PH & TS diagrams

▪ Multistaging 

Efficiencies

▪ Adiabatic/isentropic vs. mechanical

▪ Polytropic

Equipment

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▪ Pumps

• Centrifugal pumps

• Reciprocating pumps

• Gear pumps

▪ Compressors

• Centrifugal compressors

• Reciprocating compressors

• Screw compressors

• Axial compressors

▪ Turbines & expanders

• Expanders for NGL recovery

• Gas turbines for power production

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