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SPECIAL PURPOSE MACHINES
 
REFRIGERATION & AIR CONDITIONING LAB. ( RAC )
 

 
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Refrigeration Tutor ( CFC Free ).( RAC 01 )
RANGE OF EXPERIMENTS.

1. To demonstrate the basic Vapour Compression Cycle of Refrigeration.
2. To study theoretical cycles and plotting ofT- and P.H. charts.
3. To study the properties of refrigerant at salient point s of the cycle.
4. To find out refrigerating effect and work input, hence, actual and theoretical C.O.P.
5. To study functioning of vapour compression cycle at various evaporator temperatures
6. To study thermal energy balance at evaporator, condenser and overall.
7. To study compressor efficiency at varying functioning condition.

     
 
 
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Industrial Refrigeration Tutor .( RAC 02 )
RANGE OF EXPERIMENTS.

1. Study of refrigeration cycle of industrial refrigeration application.
2. Performance evaluation of the cycle. For cop, refrigeration capacity & volumetric efficiency.
     
 
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Cascade Refrigeration Tutor.( RAC 03 )
RANGE OF EXPERIMENTS.

1. To find the COP of individual Refrigeration cycle.
2. To find the COP of cascade cycle.
3. TO study various parameters and heat balance of cascade refrigeration
   system.
     
 
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Mini Air Conditioning Tutor .( RAC 04 )
RANGE OF EXPERIMENTS.

1. To demonstrate the basic Vapour Compression Cycle of Refrigeration.
2. To study theoretical cycles and plotting of T- and P.H. charts.
3. To study the properties of refrigerant at salient points of the cycle.
4. To find out refrigerating effect and work input, hence, actual & theoretical
    C.O.P.
5. To study functioning of vapour compression cycle at various evaporator
    temperatures.
6. To study compressor efficiency at varying functioning condition.
   This equipment is fully instrumented to demonstrate ' Refrigeration System '    with basic components and necessary controls.

     
 
 
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Air & Water Heat Pump . ( RAC 05 )
RANGE OF EXPERIMENTS.

1. Determination of co-efficient of performance of unit when working as heat pump.
2. Energy balances for complete system over arrange of operating condition.
3. To determine overall heat transfer co-efficient for condenser & evaporator.
4. To observe effect of sub-cooling in the condenser on coefficient of performance of heat pump.

     
 
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Mechanical Heat Pump .( RAC 06 )
RANGE OF EXPERIMENTS.

1) Determination of co-efficient of performance of the unit when working as heat pump and when working as refrigerator.
2) Calculation of Energy balances for complete system over a range of operating conditions.
3) To determine overall heat transfer co-efficient for condenser and evaporator.
4) To observe effect of sub-cooling in the condenser on co-efficient of performance of heat pump.

     
 
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Water Cooling Tower .( RAC 07 )
RANGE OF EXPERIMENTS.

1. Actual visualization and operation of Water cooling tower.

2. To study conservation of mass by evaporative cooling of water in air and through the exchange of heat between air and water .

3. Heat balance sheet.

     
 
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Cold Storage Trainer.( RAC 08 )
RANGE OF EXPERIMENTS.

1. Cold storage plant tutor is basically designed to demonstrate working and operation of various components used in cold storage plant.

2. Minimum temperature which can be achieved in this plant is - 50c
     
 
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Gas Charging Unit .( RAC 09 )
RANGE OF EXPERIMENTS.

1. Gas charging unit is suitable for charging of Freon 12 or 22 refrigerant in a
refrigeration system.

     
 
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Evacuation and Gas Recovery Unit.( RAC 09 A)
RANGE OF EXPERIMENTS.

     
 
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Ice Plant Tutor 30 Kg /Day .( RAC 10)
RANGE OF EXPERIMENTS.

1. Study of ice plant refrigeration cycle.

2. Study of various parameters affecting the freezing time.
     
 
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Ice Plant Tutor 10 Kg /Day . ( RAC 10A)
RANGE OF EXPERIMENTS.

     
 
 
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Refrigeration Fault Simulator .( RAC 11 )
RANGE OF EXPERIMENTS.

1. To create faults in the unit simulation and study the effect and then remove the fault.
     
 
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Vapour Absorption Refrigeration Trainer( Refrigeration:NH3-H20)( RAC 12 )
RANGE OF EXPERIMENTS.

1. To study the working of the Vapour Absorption system.
2. To find out Refrigeration effect.
3. To find out coefficient of performance.
     
 
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Air Cooler Performance Test Rig .( RAC 13)
RANGE OF EXPERIMENTS.

1. To study increased water content in the air with inlet and outlet conditions
2. To study enthalpy change in cooling process.
3. To study the effect on Psychometric chart.

     
 
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Recirculating A/C Trainer (Economy Model) .( RAC 14 )
RANGE OF EXPERIMENTS.

1. Demonstration of heating, cooling, humidification and dehumidification for
conditioning of air.
2. Demonstration of constant enthalpy mixing of two air streams.
3. Study of working of re-circulating air conditioning.
4. To study compressor efficiency at varying functioning condition.
     
 
 
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Experimental Domestic Refrigeration Trainer .( RAC 15 )
RANGE OF EXPERIMENTS.

1. To find the performance of the refrigerator..
2. To obtain the coefficient of performance (C.O.P.)
3. To study the construction and working of domestic refrigerator.

     
 
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Experimental Split A/C Unit ( 1 Ton Capacity ) .( RAC 16)
RANGE OF EXPERIMENTS.

1. To demonstrate the basic Vapour Compression Cycle of Refrigeration .
2. To study theoretical cycles and plotting ofT- and P.H. charts .
3. To study the properties of refrigerant at salient points of the cycle .
4. To find out refrigerating effect and work input , hence , actual and theoretical C.O.P.
5. To study functioning of vapour compression cycle at various evaporator temperatures.
6. To study compressor efficiency at varying functioning condition .
This equipment is fully instrumented to demonstrate ' Refrigeration System ' with basic components and necessary controls .


     
 
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Experimental Window A/C ( 1/3 Ton Capacity ) .( RAC 17 )
RANGE OF EXPERIMENTS.

1. To demonstrate the basic Vapour Compression Cycle of Refrigeration.
2. To study theoretical cycles and plotting of T- and P.H. charts.
3. To find out refrigerating effect and work input, hence, actual and theoretical C.O.P.
4. To study functioning of vapour compression cycle at various evaporator temperatures.
5. To study compressor efficiency at varying functioning condition.
6. Variation of COP with heat load .

     
 
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Thermoelectric Refrigeration System .( RAC 18 )
RANGE OF EXPERIMENTS.

1) Evaluation of the Peltier effect With reversing switch set to normal, power is applied to the module at a verity settings. After allowing stabilizing both temperatures are noted. Observe that at higher power input IR and heat conduction factors tend to overwhelm the cooling effect.

2) Coefficient of Performance Power to the module is set and then heater power is adjusted to maintain ambient Temperature on the cold side of the module. Repeat over the whole range. The curves show that the coefficient is highest when the module has to do the minimum of work.

     
 
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Steam Jet Refrigeration System .( RAC 19 )
RANGE OF EXPERIMENTS.

1. Analysis of the combined Ranking and Vapour Compression Cycle.
2. Demonstration of the characteristics of an ejected or thermo compressor.
3. Production of performance curves as a refrigerato & comparison with ideal
Ranking Vapour Compression Cycle.
4. Production of performance curves as a heat pump and comparison with ideal Ranking Vapour Compression Cycle.
5. Demonstration of adiabatic mixing of hot and cold vapour.
6. Demonstration of adiabatic throttling .


     
 
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Desert Cooler Refrigeration .( RAC 20 )
RANGE OF EXPERIMENTS.

     
 
 
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Vortex Tube Refrigeration with compressor .( RAC 21 )
RANGE OF EXPERIMENTS.

1. To evaluate the performance of vortex tube as method of producing refrigerating effect.

     
 
 
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Water Cooler Test Rig .( RAC 22 )
RANGE OF EXPERIMENTS.

1. Study of water cooling refrigeration cycle.
2. Study of various point water cooling affecting the freezing time.
     
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