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REFRIGERATION

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CRI 100

HEAT PUMP WATER / WATER REVERSIBLE

Teaching suggested applications*

  • Identification of the components of a heat pump installation water / water reversible
  • Visualization of the implementation of the system
  • Visualization of the processing of the refrigerant through glass grilles (evaporation and condensation)
  • Switching on, use and settings
  • Measurement of various operating parameters (power consumption, temperature of refrigerant and of the water, pressures)
  • Energy efficiency analysis of the system and trace on the refrigerating cycle on enthalpy diagram
  • Study of a reversible system

Description

The CRI 100 bench allows the study of a reversible refrigerating cycle.

The bench is made of standard elements of a refrigeration circuit. The compressor will first elevate the pressure and the gas temperature (R134a). The water condenser will then transform this high pressure gas in the high pressure liquid. Students visualize the transformation because the refrigerant condenses between the glass grille and the cooling coil.

The high-pressure liquid will then be stored in a bottle and then be sent towards the expansion valves. This will change the state of the fluid; it will go from a high pressure liquid to a low pressure liquid. This low pressure liquid is now in the evaporator and will draw its energy to the water coil (and thus cool it). Students visualize the transformation because the refrigerant evaporates between the glass grille and the cooling coil.

At the outlet of the evaporator, the fluid is in the form low pressure steam, it goes through a suction line accumulator and be compressed again by the compressor.

Documentation :
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*Teaching suggested applications



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