Model of Refrigeration System (Refrigeration & Freezing)
(AR-004)

1 Inlet quick connection 2 Solenoid valves 3 Thermostatic expansion valve 4 Capillary tube 5 Evaporator 6 Fan 7 Heater 8 Outlet quick connection 9 Evaporation Pressure regulator 10 Upper Refrigeration Chamber 11 Lower Refrigeration Chamber

  • Operation Experiment
  • Faults Simulation Experiments
    • Delivery Pipe at the Compressor Clogged
    • Intake Pipe at the Compressor Clogged
    • Condenser Fan Fault
    • Expansion Valve at Upper Evaporator Fault
    • Capillary Tube Clogged
    • Upper Evaporator Clogged
    • Upper Evaporator Fan Fault
  • Solenoid Valve
    • Ambient temperature range [°C][Max]: 80 °C.
    • Ambient temperature range [°C] [Min]: - 40 °C.
    • Frequency [Hz]: 50/60 Hz.
    • Power consumption: 12 W.
    • Rel. Humidity [% RH] [Max]: 100 %.
    • Rel. Humidity [% RH] [Min]: 0 %.
    • Supply voltage: 220 V.
  • Expansion valve
    • Body material: Brass
    • Capillary tube length [in]: 59 in
    • Capillary tube length [mm]: 1500 mm
    • Factory setting (FS) [°C]: 6 °C
    • Flow direction: Single-flow
    • Max. Working Pressure [bar]: 34 bar
    • Static Superheat (SS) [°C]: 4 °C
    • Static Superheat (SS) [°F]: 7.2 °F
    • Temperature range [°C] [Max]: 10 °C
    • Electric Heater Power: 250 W
  • Temperature sensor: pt100.
    • Measuring Range: -40 to 150°C.
  • Model of Refrigeration System (Refrigeration & Freezing) (AR - 004)
  • Hard Copy user manual

The model of a refrigeration system with refrigeration and freezing stage is part of the refrigeration and air-conditioning training system. In combination with the base unit, the operational model of a refrigeration system with refrigeration and freezing stage results. The model is plugged onto the base unit, secured using fasteners and connected with refrigerant hoses to become a complete refrigeration and freezing circuit.

                                     
  • The model of a refrigeration system with refrigeration and freezing chamber is designed to be plugged into the Base Unit of Refrigeration (Not Included) to simulate a real refrigerator with freezing chamber.
  • The refrigerator model is composed of inlet and outlet valves, solenoid valves, two expansion valves, two capillary tube, two refrigeration chamber and pressure regulator.
  • Each refrigeration chamber includes: evaporator with fan (to recirculate the air) and heater to generate the cooling load.
  • The refrigeration and freezing chambers are provided with a transparent front.
  • The unit is provided with an adjustable evaporation pressure regulator.
  • The expansion elements are selected via solenoid valves to be either expansion valve or capillary tube
  • The operating modes of the system are configured via 7 solenoid valves.
  • The sensors are used to record temperature and pressure at different measuring points.
  • The model is connected to the base unit electrically by data cables and hydraulically by refrigerant hoses.
  • After connecting the two units, the software of the Base Unit of Refrigeration can operates solenoid valves, fan, heater and fault simulation
  • The software where can measure values of the sensors and observed it