REFRIGERATION TUTOR

INTRODUCTION :-

Vapour Compression Refrigeration Cycle is a very widely used cycle. The main object is to demonstrate Refrigeration system with basic components and necessary controls. The practical working is demonstrated here and also a considerable amount of theoretical analysis and performance can be studied.

SPECIFICATIONS

1. Compressor : Hermetically sealed Kirloskar Make or equivalent (920 Kcal / Hr rated cooling capacity
2. Air cooled Condenser ? Suitable for above compressor with suitable Cooling fan.
3. Expansion systems
a) Capillary Tube
b) Thermostatic Expansion valve.
4. Evaporator coil : Suitable for above compressor immersed in water tank of stainless steel.
5. Electric Heater : For balancing Refrigerating effect produced.
6. Rotameter : For liquid refrigerant flow rate
7. Refrigerant : Freon 12
8. Energy meters for Power measurement of compressor & Heater (Calorimeter)
9. Dimmerstat : 230 V.A.C. Single phase for Heater control.
10. Pressure gauges 2 Nos. for HP & LP Measurement.
11. Temp. Indicators.
12. Solenold alve: 230 V Supply : 1 No.
13. H. P. / L. P. cutout : to suit compressor pressures.
14. Sight Glass : 1No.
15. Service Valves : 3 Nos. needle type.
16. Ammeter
17. Voltmeter
18. Thermostat
19. Filter / dryer
20. Illustrative Instruction Manual.
21.The circuit mounted on a board equipped with all controls

RANGE OF EXPERIMETS

1) To demonstrate the basic vapour compression Cycle of Refrigeration.
2) To study theoretical cycle and plotting on T. O and P.H. charts.
3) To find out refrigerating effect and work input hence actual and theoretical C.O.P.

SERVICE REQUIRED

1) Single phase ? 230 V.A.C. Supply (15 Amp.)
2) Freon ? 12 gas ? 2 kgs.
Approximately for initial charging.
3) Charging Unit ? for maintenance.