ASR2037 Refrigeration Circuit with Variable Load Didactic Equipment Refrigeration Lab Equipment
Learning Objectives / Experiments
– design and components of a refrigeration system
* compressor
* condenser
* thermostatic expansion valve
* evaporator
* pressure switch
– representation of the thermodynamic cycle in the log p-h diagram
– determination of important characteristic variables
* coefficient of performance
* refrigeration capacity
* compressor work
– operating behaviour under load
Specification
[1] investigation of a refrigeration circuit with water circuit as load
[2] refrigeration circuit with compressor, condenser with fan, thermostatic expansion valve and coaxial coil heat exchanger as evaporator
[3] water circuit with pump, tank with heater as cooling load at the evaporator
[4] heater with controller to adjust the tank temperature
[5] record of all relevant measured values and display directly at the location of measurement
[6] LabVIEW software for data acquisition via USB under Windows XP or Windows Vista
[7] refrigerant AR134a, CFC-free
Technical Data
Compressor
– refrigeration capacity: approx. 380W at 5/40°C
Evaporator
– refrigerant volume: 0.4L
– water volume: 0.8L
Condenser
– transfer area: approx. 0.175m²
– fan power consumption: 2x 29W
Pump
– max. flow rate: 1.9m³/h
– max. head: 1.4m
Tank
– volume: approx. 4.5L
– heater: approx. 450W
Measuring ranges
– pressure: 2x -1…15bar
– compressor power: 1x 0…600W
– temperature: 6x 0…100°C
– flow rate (water): 1x 0.05…1.8L/min
Dimensions and Weight
LxWxH: 1400x560x1800mm
Weight: approx. 120kg
Connections
230V, 50/60Hz, 1 phase or 120V, 60Hz, 1 phase
