CASCADE REFRIGERATION TEST RIG:

A) RANGE OF EXPERIMENTS

• To find the COP of individual Refrigeration cycle.
• To find the COP of cascade cycle.
• To determine the Refrigeration effect, Work output, Actual C.O.P, Carnot C.O.P., Theoretical C.O.P, Tonnage of refrigeration.
• To study various parameters and heat balance of cascade refrigeration system.

B) SPECIFICATION:-

• High Pressure Side Compressor: Hermetically sealed compressor having cooling capacity of (3/4 ton), Make: Emerson or Equivalent.
• Low Pressure Side Compressor: Hermetically sealed compressor having cooling capacity of (1/4 ton), Make: Emerson or Equivalent.
• Evaporator: Copper Coil immersed in insulated water tank (shell) of stainless steel water tank, Capacity of 75 liters. To achieve Temperature of -35 Deg C with the mixture of Ethylene Glycol.
• Condenser: Air-cooled condenser with copper fins. This is a tube type condenser, FHP fan motor with fan blade is provided.
• Cascade Condenser: Tube and Tube type Condenser with copper tubes. This is a tube type condenser.
• Expansion device: 2 No
• Capillary Tube
  • Diameter : Suitable
  • Material : copper
• Rota meter: 2 No, for measuring flow rate of liquid refrigerant.
• Refrigerant: (R-22) & (R-404a).
• Pressure Gauges:
  • 0 to 300 PSI (R-22) - 1 no.
  • Compound Gauge -30 to 150 PSI (R-404a) - 1 nos
• Multipoint Digital Temperature Indicator: 2 No, to measure temperatures at various salient points of the refrigeration cycle.
• HP/LP cut-out: 2 No. Danfoss or equivalent.
• Service valve: 4 nos. Brass type.
• Filter / Drier: 2 nos. Danfoss or equivalent make.

C) SERVICE REQUIRED:

• Single phase 230 V AC, 15 Amp supply.
• Space required: 2mtr x 1.5 meters.

D) WEIGHT: 150Kg. (Approx)