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Thermodynamics of The Refrigeration Circuit
Description & Specification
Thermodynamics of The Refrigeration Circuit
Categories:
Refrigeration Training Kit
Technical Specifications
Learning Objectives / Experiments:
Calculation of the coefficient of performance
Operating behavior under load
Calculation of the motor power via speed and torque
Cyclic process in the log p-h diagram
Determination of losses
Non-steady-state operating behavior
Comparison of the real cyclic process and the ideal cyclic process
Energy balances at the evaporator and condenser
Specifications:
Refrigeration circuit with open compressor, water cooled condenser, thermostatic expansion valve and indirectly heated evaporator
Displays for temperature, pressure, flow rate, speed, torque and power at the equipment
Compressor drive with speed-controlled motor via V-belt
Motor on pendulum bearing for torque measurement
Thermodynamic investigation of a refrigeration circuit
Tube evaporator with hot water circuit as cooling load
Refrigerant R134a, CFC-free
Water-cooled coaxial coil heat exchanger as condenser
Technical Data:
Measuring ranges
Temperature: 9x -30...100°C, 1x 0...100°C
Pressure: 1x -1...9bar, 1x -1...24bar, 2x -1...15bar
Torque (compressor): 0...10Nm
Speed (compressor): 0...2.500min-1
Power consumption (compressor): 0...1.125W
Power (heater): 0...1.125W
Flow rate (water): 5...70g/s
Flow rate (refrigerant): 0...0,5L/min
Open compressor
Refrigeration capacity: approx. 550W (at a speed of 500min-1 and -10/20°C)
Motor: 550W, 1.400min-1
Heater: 1x 1.000W
Condenser
Capacity: 1.300W
Required for Operation
230V, 50/60Hz, 1 phase
Water connection
Dimensions: Length x Width x Height: 1.520x790x1.760mm
Weight: 120kg.
