Domestic refrigeration trainer

TRD/EV

Domestic refrigeration trainer is designed to identify and analyze the behaviour of thermodynamic cycle of domestic refrigerators. Students’ attention is focused onto the issues concerning refrigerant condensation that is generally inadequate because of the poor heat exchange due to the low convection occurring in the narrow spaces where domestic refrigerators are usually installed.

Training program

  • ON-OFF control: refrigerator thermostat
  • Using the refrigerant pressure-enthalpy diagram as work and diagnosis tool: plotting the refrigeration cycle
  • Data acquisition and calculation of:
    • heat balances corresponding to evaporator, condenser, compressor
    • refrigerant mass flow
    • ideal and actual EER
    • volumetric compression efficiency and its trend versus compression ratio
    • condenser exchange surface
    • heat transfer coefficient between air and refrigerant in the condenser
    • heat losses through the room walls

Technical specifications
Supply with
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