1. REFRIGERATION TEST RIG

This unit consists of a hermetically sealed compressor with air cooled condenser. A capillary or expansion valves are next to condensers following by medium temperature evaporators.
Energy meter can measure electrical energy supplied to compressor. This apparatus is used to perform the following experiments:

• 1. To determine COP of unit.
• 2. To drew P-H chart,
• 3. To drew T-S Chart.

• Compressor : ½ Ton
• Air cooled condenser : Suitable for above compressor with Cooling fan
• Expansion device : Capillary tube.
• Evaporator coil : Suitable for above compressor Immersed in Water tank.
• Electric Heater : for balancing refrigerating Effect produced.
• Refrigerant : Floron–R134a
• Energy meter : For power measurement of Compressor & heater
• Pressure Gauges : 2 Nos. for high and low pressure.
• Service valve : 1 Nos. needle types
• Ammeter : 1 No.
• Voltmeter : 1 No.
• Filter : 1 No.
• Drier : 1 No.
• Digital Temperature Indicator: 4 channel.
 The equipment consist a sturdy frame with control panel.

2. SPLIT AIR CONDITIONER TEST RIG.

This unit consists of a hermetically sealed compressor with air cooled condenser. A capillary or expansion valves are next to condensers followed by medium temperature evaporators. Energy meter can measure electrical energy supplied to compressor. This apparatus is used to perform the following experiments:

1. Compressor : 1 Ton
2. Air cooled condenser : Suitable for above compressor with Cooling fan.
3. Expansion devices : Capillary tube or thermostatic expansion valve.
4. Evaporator coil : Suitable for above compressor immersed in duct.
5. Refrigerant : Freon – 22.
6. Pressure gauge : 2 nos. for high and low pressure.
7. Thermometer : Glass type dry and wet bulb
8. Sight glass : 1 No.
9. Service valves : 7 Nos. needle type.
10. Ammeter : 1 Nos.
11. Voltmeter : 1 No.
12. Thermostat : 1 No.
13. Filter/ Drier : 1 No.
Energy meter for power measurement of compressor.
14. Digital Temperature Indicator :6 Nos.
 The equipment consist a sturdy frame with control panel.

3. WINDOW AIR CONDITIONER TEST RIG

This unit consists of a hermetically sealed compressor with air cooled condenser. A capillary or expansion valves are next to condensers followed by medium temperature evaporators. Electrical energy supplied to the compressor can be measured by energy meter. This Test Rig is used to perform the following experiments:
To calculate the COP of unit.
To calculate the refrigerating effect and HP of unit.
To determine the sensible heat factor of air.

• Compressor : 1 ton ( 513 )
• Air cooled condenser : Suitable for above compressor with suitable cooling fan.
• Expansion device : Capillary tube.
• Evaporator coil : Suitable for above compressor immersed in duct.
• Refrigerant : Freon - 22.
• Energy meter for power measurement of compressor
• Pressure gauges : 2 Nos. for high and low pressure.
• Thermometer : (a) Glass type dry and wet bulb thermometer - 1 Nos.
• Temperature sensors : 4 Nos.
• Digital Temperature Indicator :4-Channel
• Temperature sensor (Thermocouple) :4 Nos.
• Service valves : 1 Nos. needle type.
• Ammeter : 1 No.
• Voltmeter : 1 No.
• Thermostat : 1 No.
• Filter/drier : 1 No.
• The equipment consist a sturdy frame with control panel.

4. WATER COOLERS TEST RIG.

This unit consists of a hermetically sealed compressor with air cooled condenser. A capillary is next to condensers followed by medium temperature evaporators. Electrical energy supplied to the compressor can be measured by energy meter. This Test Rig is used to perform the following experiments.
EXPERIMENTS:-
To determine COP of unit.
SPECIFICATION: - Compressor: Emerson Copland / Tecumseh India Hermetically sealed compressor.
Compressor Capacity: 1/5 HP
Condenser: Suitable for above compressor with suitable cooling fan & Fins and copper Tube Air Cooled.
Expansion Device: Capillary tube & Filter / Drier
Pressure Gauge: 2 Nos. for high and low pressure.
Evaporator Coil copper tube & soldering.
Refrigerant: Freon 134a
Cooling Capacity: 5 liters
2. Voltmeter Digital type 1 Nos.
3. Amp. Meter Digital type 1 Nos.
4. Energy Meter for Compressor input.
6. Digital Temperature Indicator: 1 Nos.
Digital Temperature Indicator: 4 channel.
 The equipment consist a sturdy frame with control panel.

5. MECHANICAL HEAT PUMP TEST RIG

Heat Pump and the refrigerating machine basically work on one and the same principle and with the same components. Heat pump is a machine, which delivers heat at a temperature suitable for domestic, Industrial and Commercial purposes. The majority of heat pumps operate on the vapour compression cycle using a refrigerant as the working fluid. Heat pump is fully sealed R-134A refrigerant system using water-to-water pumping principle. The equipment produces realistic results and has low thermal inertia so that unit stabilizes very quickly and enables student’s maximum experimentation
Study of mechanical heat pump.
To determine the COP of the unit.

• Compressor: Hermitically sealed compressor.
• Capacity 1/3 Ton,
• Condenser : Water cooled type shell and coil condenser with refrigerant Inside the tube.
• Expansion Valve: Capillary Tube, Compatible Capacity.
• Evaporator: Water cooled Compatible capacity.
• Digital Temperature Indicator: 4 channel.
• Digital Voltmeter: 0-300 V Digital Ammeter: 0-10 Amp. Temperature Measurement: Digital Temperature Indicator with multi-channel switch.
The equipment consist a sturdy frame with control panel.