Industrial Refrigeration Trainer
(AR-039_)
  • Plant starting and safety devices intervention checking.
  • Studying the operation of a thermostatic expansion valve and its calibration.
  • Proportional control correlation between evaporation temperature, room temperature and relative humidity in positive temperature rooms.
  • Analyzing the system behavior versus the variation of:
    • Valves opening degree.
    • Condenser air flow.
  • Plotting the cycle in the refrigerant pressure enthalpy diagram.
  • Data acquisition and calculation of:
    • Heat balances corresponding to evaporator, condenser, and compressor.
    • Refrigerant mass flow.
    • Ideal and actual EER.
    • Volumetric compression efficiency.
    • Condenser exchange surface.
    • Heat transfer coefficient between and refrigerant in the condenser.
    • Heat losses through the room walls.
  • The software of the equipment allows to enter different sections:
    • System automatic and manual operation.
    • aults enabling (12).
    • Troubleshooting and plant operation reset.
    • System supervision with display of the values detected by the sensors.
  • Industrial Refrigeration Trainer (AR - 039)
  • Hard copy user manual

The computerized industrial refrigeration trainer is a wheeled, mobile structure for the study of the industrial refrigeration whose main aim consists in controlling the temperature and relative humidity of one or more cold rooms. In this case, a single compressor and single condenser are used for two different cold rooms, one for frozen products and the other for fresh products. The trainer simplify the learning of data acquisition techniques by using suitable instruments and a PC.

  • Steel structure mounted on wheels, painted and treated in the oven.
  • Color silk - screen - printed schematic diagram of the hydraulic circuit with warning LEDs.
  • 1/4 HP hermetic compressor.
  • Variable flow forced - air condenser.
  • 2 cold rooms with separate evaporators.
  • Electronic expansion valve, thermostatic expansion valve, back - pressure valve.
  • Liquid receiver, liquid separator.
  • Solenoid valves, check valve, on/off valves, sight glass and dehydrator filter.
  • Valve for plant vacuum, refrigerant charging and recovering.
  • Pipes connecting the various components painted with different colors.
  • Transducers and sensors for detecting the following system operating parameters: voltage, current, power factor, refrigerant temperatures, freezer temperature, refrigerator temperature and relative humidity, cycle pressures (high, low and intermediate), refrigerant flow rate.
  • High and low pressure gauges.
  • Double pressure switch.
  • Thermomagnetic - earth leakage control button.
  • Emergency button.
  • PC control program.
  • Power supply: 230 VAC 50 Hz single -phase- 650 VA.
  • General refrigeration manual.
  • Theoretical - experimental handbook in English language.
  • Supplied with a desktop PC.