SR2017 Changes of State in the Refrigeration Circuit School Training Bench School Laboratory Equipment Educational Air Conditioner Trainer Learning Objectives / Experiments - design and operation of a compression refrigeration system - observe the evaporation and condensation of the refrigerant - represent and understand the refrigeration cycle in the log p-h diagram - energy balances - calculation of the coefficient of performance - oil return in a flooded evaporator Specification [1] demonstration of the processes in a refrigerationcircuit [2] for better process monitoring the evaporator andcondenser are of transparent design [3] evaporator and condenser with pipe coil [4] expansion valve in the shape of a float valve [5] pressure switch to protect the compressor [6] temperature sensor, power meter, manometer inthe refrigeration circuit, flow meter forhot and coldwater and refrigerant [7] safety valves at the evaporator and condenser [8] refrigerant Solkatherm , CFC-free Technical Data Hermetic piston compressor - capacity: 18,3cm³ Evaporator volume: approx. 2,8L Condenser volume: approx. 2,8L Measuring ranges - temperature: 8x -20...200°C - pressure: 2x -1...1,5bar - flow rate (water): 2x 0...800cm³/min - flow rate (refrigerant): 1x 0...700L/h - power: 0...1.200W Dimensions and Weight LxWxH: 1.210x510x900mm Weight: approx. 110kg Required for Operation 230V, 50/60Hz, 1 phase or 120V, 60Hz/CSA, 1 phase Water connection, drain
