| REFRIGERATION TEST RIG AIM:-
To study Refrigeration Cycle
Determine of Co-efficient of Performance of Cycle
Determine of Tonnage capacity of Refrigeration Unit.
APPARATUS:-
Refrigeration Test Rig consists of Compressor (Hermitically), Air cooler condenser, Capillary Tube, Evaporator Coil with Freezer, Digital Voltmeter, Digital Ampere Meter, Digital Energy Meter, Suction Pressure Gauge, Discharge Pressure Gauge, Hand Shut Valve, Filter Dryer and Rotameter.
DESCRIPITION:-
The experimental Refrigeration Cycle Test Rig consist of a compressor unit, condenser, evaporator, cooling chamber, controlling devices and measuring instruments those are fitted on a stand and a control panel. The apparatus is fabricated in such a way; to refrigeration system hermetically sealed compressor is fitted on stand with the help of flexible foundation bolts to minimize vibrations. Electric power input to the compressor is given through Thermostatic switch.
TEMPERATURE SENSOR:-
T1 = Temperature Sensor : Fixed at Compressor Discharge Line
T2 = Temperature Sensor : Fixed at Compressor Suction Line
T3 = Temperature Sensor : Fixed after Capillary Tube
T4 = Temperature Sensor : Inside Freezer
T5 = Temperature Sensor : Outside Freezer
THEORY:-
The coefficient of performance of refrigeration plant is given by the ratio of heat absorbed, by the refrigerant when passing through the evaporator or the system, to the working input to the compressor to compress the refrigeration. |
