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Refrigeration Compressor Sizing Calculator

Estimate compressor motor power, COP and displacement for NH₃, CO₂ transcritical, HFO blends and propane.

Cooling capacity (kW)

Evaporating temp Te (°C)

Condensing temp Tc (°C)

Refrigerant

Motor power

56.5 kW

COP

2.66

Higher = more efficient

Swept volume

~480 m³/h

Compressor family

Screw compressor

Indicative estimates only. ColdMatch uses these inputs to brief vetted refrigeration suppliers in 60+ countries.

FAQ

How is compressor size determined?

From Te, Tc, refrigerant properties and cooling capacity — giving motor power and displacement.

Expected COP?

Chilled: 3.0–3.8. Frozen: 1.8–2.4. Blast: 1.3–1.7.

Screw or reciprocating?

<50 kW reciprocating/scroll; 50–500 kW screw; >500 kW screw or centrifugal.