Computer Controlled Refrigeration Circuit with Variable Load

Details

The Computer Controlled Refrigeration Circuit with Variable Load, "TRCAC", is a unit designed for the study of a refrigeration cycle with an thermal adjustable load. The unit includes all the components required for a fully operational refrigeration circuit, such as hermetic compressor, condenser, evaporator and a thermostatic expansion valve. The condenser consists of a tube exchanger with a fan where the working fluid, in vapor phase, transfers heat while passing through the tubes. Therefore, the working fluid undergoes a phase change, to liquid state, through a condensation process. In the evaporator, heat is exchanged from a water circuit (thermal load) to the refrigeration circuit. The evaporator consists of a tube exchanger where the working fluid changes phase until it reaches the saturated vapour state. The water circuit consists of a tank with a computer controlled heating element , allowing the water temperature in the tank to be controlled. The water at a certain temperature is driven to the evaporator by a computer controlled circulatory pump. The main factors involved in the cycle can be measured: coolant flow, compressor power and pressure and temperature in key p