GPSA · ASHRAE · Campbell
COP = Qevap / Wcomp
Carnot COP = Tevap / (Tcond - Tevap)
Compression Ratio Limits:
• Single-stage: r < 6-8
• Two-stage recommended if r > 5
• Max discharge temp: 250°F
References:
GPSA 14th Ed · ASHRAE 2021
Complete guide to refrigeration cycles, propane/ethylene systems, COP calculations, and cascade refrigeration.
It designs vapor-compression refrigeration systems for NGL recovery and gas processing applications.
It calculates coefficient of performance (COP), compressor power, and heat exchanger sizing.
It follows GPSA and ASHRAE standards for refrigeration system design.