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THERMODYNAMICS
5.8 Vapour Compression and Refrigeration Cycle


Standard features :
  1. A basic demonstrating unit ,compression and expansion process in cycle.
  2. Fool proof design, suitable for class room application.
  3. Low pressure application using R141b.
  4. Condensation and evaporation can be observed through the clear glass cylinders.
  5. Mass flow rates as well as temperature of refrigerant and water can be measured using rotameters and thermocouples with digital display.
  6. Open circuit water cooling and heating system.

Expansion process in action At no load condition

Technical Specifications :
  1. Compressor : KK Brand, Hermatic , piston type 800 WATTS(approx).
  2. Condensing , evaporating cylinders : Clear thick wall glass , 80 mmID , 100 mmOD , 180 mmLenght to be equiped with copper coil inside.The glass cylinders are subjected to hydrostatic test at 3 > barg for 30 min.
  3. Maximum working pressure : Up to 1.7 barg
  4. Safety devices :
    -->High pressure switch located at the condenser, to be set 2 barg for compressure shut down , and 0.7 barg for compressor re-starting.
    -->Condenser is also equiped with high pressure returned value to suction port of compressure, value to be opened at 2.0 barg.
    -->Thick and clear acrylic cover covers at condenser and evaperator as safety gaurding device.
  5. Lubricating oil : Polyol ester(POE) or poly alkylene glycol(PAG)
  6. Water flow meters : 0-5 Kg/min variable area type.
  7. Refrigerant flow meter : 1-5 grams/sec, is an optional.
  8. Water cooling system : Opened circuit , tab water is required.
  9. Temperature measurement : 7-sets , thermocouple type K , digital display.
  10. Required service : 220 VAC 50 Hz single phase ; fresh and clean water for water cooling system.
  11. Dimensions : 450 mmW x 800 mmL x 700 mmH
  12. Shipping volume : 500 mmW x 1100 mmL x 750 mmH = 0.413 CU.M
  13. Weight : 50 Kg net ; 70 Kg gross(approx).

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