Refridgeration Cycle

This simple refrigeration cycle unit allows student to learn the stages of refrigeration at an entry level. Students learn about Pressure-Enthalpy charts and use them to determine the Coefficient of Performance (COP), superheat and subcooling from the enthalpy changes. The refrigeration circuit features high and low pressure gauges, a pressure switch, sight gauge, filter dryer and TEV valve. The circuit also includes pressure transducers that connect to the instrumentation. Both the evaporator and condenser coils are submerged in a bath of water. A small pump provides a gentle mixing of the water to help maintain a steady state condition.