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Discharge Temperature Calculator

GPSA thermodynamic methods

Discharge Temperature Calculator
Predict compressor discharge temperature from suction conditions, pressure ratio, and efficiency. Critical for ensuring equipment stays within temperature limits per API 617.

Suction Conditions

°F
psia

Discharge Conditions

psia

Gas Properties & Efficiency

Cp/Cv
%

Temperature Limits (Optional)

°F
Typical limit: 300-350°F for natural gas service

Temperature Limits

  • Natural gas: 300-350°F max
  • Refrigerants: 250-300°F max
  • Seal limits: Often 350°F
  • If T₂ too high: Add intercooling, reduce ratio, or lower T₁

Standards & References

  • API 617
    Centrifugal Compressor Temperature Limits
  • GPSA
    Section 13: Compressors

Frequently Asked Questions

How is centrifugal compressor discharge temperature calculated?

Discharge temperature is calculated from suction conditions, pressure ratio, and efficiency using GPSA thermodynamic methods.

What inputs are needed for the discharge temperature calculation?

You need suction temperature, suction pressure, discharge pressure, gas properties, and compressor efficiency.

What standard does this calculator follow?

This calculator uses GPSA thermodynamic methods for centrifugal compressor discharge temperature estimation.