Cascade Refrigeration Intermediate Temperature & COP Calculator

Determine optimum intermediate saturation temperature, cascade condenser heat exchanger approach, low-stage and high-stage mass flow rates, and overall system COP.

Cascade Temperatures & Refrigerant Pair

Cascade Refrigerant Pair:

Low-Stage Evap Temp T_L (°C):

High-Stage Cond Temp T_H (°C):

Cooling Load Q_L (kW):

Cascade Condenser Approach ΔT_hx (K): Plate heat exchanger ΔT (typically 3 - 5 K)

Cascade Thermal Balance & Total Power

Combined System COP

Total Shaft Power W_tot

Optimum T_int,opt

Low-Stage Power W_L

High-Stage Power W_H

Cascade Condenser Heat Duty & Mass Flows

Cascade Duty Q_cas: -- kW | ṁ_Low: -- kg/s | ṁ_High: -- kg/s

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Cascade Refrigeration Intermediate Temperature & COP Calculator

Cascade Temperatures & Refrigerant Pair

Cascade Thermal Balance & Total Power

Frequently Asked Questions