Refrigerator & Air Conditioning Lab | General Cycle Type Refrigeration Trainer | Ice Plant Trainer | Vapour Compression Refrigeration Trainer | Windows Air Conditioning Trainer | Mechanical Heat Pump Trainer

Specification

Sub-title Parameter Description
Refrigeration System Model General Cycle Type Refrigeration Trainer
Capacity 0.30 TR @Rated test conditions
Compressor Hermetically sealed. Make : Emerson Climate Tech./ Tecumseh Products India Ltd./ Danfoss Ltd./or any equivalent make.
Condenser Forced convection air cooled.
Condenser fan Axial flow
Drier/ filter Provided
Expansion device Capillary Tube
Evaporator Forced convection air cooled
Evaporator Fan Axial Flow Type
Dehumidifier or Reheater 1000 Watts; Finned Type.
Humidifier Provided
Refrigerant R-134 a.
Controls & Indications HP / LP Cut-out Alco/ or Danfoss / Castle or equivalent make.
Temperature 6 Channel facility with digital display.
Pressure 2 Nos.; Dial type pressure gauges.
Refrigerant Flow Glass tube Rotameter provided.
Air temperature DBT & WBT measurement by sling psychrometer
Air flow measurement By inclined tube manometer.
Electrical System Supply 220-240 Volts, 50 Hz, 1 phase.
Input power 1.2 kW.
Rated current 5.5 Amps
Indicating lamps Provided for compressor and heater
Energy-meters Range 0-20 A; provided for Compressor
Construction Material Panel: 1.2 mm thick CRCA
Outer finish Powder coating
Size 900 x 600 x 1480 (L x B x H)

Range of Experimentations

  • To evaluate the tonnage capacity of the air conditioning system by enthalpy difference method.
  • To evaluate actual and theoretical C.O.P. of the system.
  • To plot the refrigeration cycle on P-H & T-S charts.
  • To plot the psychrometric processes on psychrometric charts.

Specification

Sub-title Parameter Description
Refrigeration System Model Ice Plant Trainer
Ice production Capacity 25 kg in a day of 24 hrs.
After attaining brine temperature of -5deg C, ice cans will be loaded. Number of ice cans = 4 nos;
Ice qty per can=0.6 kg; Ice production per batch = 2.4 kg Cycle time per batch = 2 hrs.
Compressor Hermetically sealed. Emerson / Tecumseh / Danfoss or equivalent make.
Condenser Forced convection air cooled.
Condenser fan Axial flow type
Evaporator Immersed (Refrigeration grade copper tube); Direct expansion type; 3/8” OD x 35'
Drier/ filter Provided; Molecular sieve type
Expansion device Capillary Tube
Insulation 65 mm thick, Polyurethane foam (PUF)
Primary Refrigerant R 134a
Secondary Refrigerant Ethylene Glycol Solution
Humidifier Provided
Refrigerant R-134 a.
Controls & Indications Temperature Temperature indicator with 6 no. of selector points provided
Pressure 2 Nos.; Dial type pressure gauges.
Brine Thermostat Provided
Electrical System Supply 230 Volts, 50 Hz, 1 phase.
Input power 400 Watts.
Construction Rated current 3.0 Amps
Stirrer Motor Provided.
Energy-meters For compressor provided.
Outer body 1.2 mm thick CRCA
Brine Tank Ss304
Size 860 x 600 x 1165 mm ( L x D x H )

Range of Experimentations

  • To study various components and controls used in ice plant.
  • To evaluate capacity of the ice plant.
  • To calculate C.O.P. Of the system.
  • To plot system performance on p-h chart.

Specification

Sub-title Parameter Description
Refrigeration System Model Vapour Compression Refrigeration Trainer
Cooling Capacity 450 Watts at rated test conditions ( 1/8 TR )
Compressor Hermetically sealed. Make: Emerson Climate Technologies Ltd. /or Danfoss Ltd;/or Tecumseh Products India Ltd./ or any equivalent make.
Condenser Forced convection air cooled.
Condenser fan Axial flow
Drier/ filter Molecular sieve type.
Expansion device Capillary Tube
Evaporator Direct expansion type. Shell & Coil type provided
Accumulator Copper / M.S. shell suction line accumulator provided.
Refrigerant R-134 a.
Controls & Indications HP / LP Cut-out Alco/ Danfoss / Castle or equivalent make.
Pressure indication 2 nos. dial type pressure gauges; one for suction and the other for discharge pressure.
Temperature indication Multi-channel LED digital temperature indicator.
Refrigerant flow indication Glass tube rotameter.
Electrical System Supply 220-240 Volts, 50 Hz, 1 phase.
Input power 1.0 kW.
Rated current 4.5 Amps.
Operating switches Main switch & piano type switches for compressor & heater
Indicating lamps Provided for compressor.
Energy-meters Provided for compressor.
Construction Material Panel : 1.2 mm thick CRCA
Outer finish Powder coating
Calorimeter Stainless steel: SS-304 tank with nitrile foam insulation.
Size 900 x 600 x 1130 mm (L x B x H)

Range of Experimentations

  • to study various components and controls used in vapour compression cycle.
  • To evaluate actual & theoretical C.O.P. Of vapour compression cycle.
  • To plot actual refrigeration cycle on p-h chart.

Specification

Sub-title Parameter Description
Refrigeration System Model Windows Air Conditioning Trainer
Capacity 0.75 TR at rated test conditions*
Compressor Rotary type; Hermetically sealed.
Condenser Forced convection air cooled.
Condenser fan Axial flow
Evaporator Forced convection
Evaporator fan Axial flow type
Drier/ filter Molecular sieve type.
Expansion device Capillary Tube
Accumulator Copper / M.S. shell suction line accumulator provided.
Refrigerant R-22
Instrumentation Electrical System Temperature Sling Psychrometer for air temperatures & Digital Indicator for refrigerant temperatures.
Velocity By inclined tube manometer
Pressure Pressure gauges at suction & discharge
Supply 220-240 Volts, 50 Hz, 1 phase.
Input power 1.2 kW
Rated current 8.0 Amps.
Energy-meters Provided for compressor
Construction Material Panel: 1.2 mm thick CRCA
Outer finish Powder coating
Size 650 x 600 x 1165 mm ( L X D X H )

Range of Experimentations

  • To study various components and controls used in window air conditioner.
  • To evaluate the tonnage capacity of the air
  • conditioning system by enthalpy difference method.
  • To evaluate actual & theoretical C.O.P. Of vapour compression cycle.
  • To plot actual refrigeration cycle on P-H chart.

Specification

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Sub-title Parameter Description
Refrigeration System Model Mechanical Heat Pump Trainer
Rating 500 Watts gross heat rejection at rated test conditions*
Compressor Hermetically sealed. Emerson / Tecumseh / Danfoss or equivalent make.
Heat Rejection Calorimeter Water cooled provided
Heat Absorption Calorimeter Immersed tube; Direct expansion type
Calorimeter Insulation Nitrile rubber foam Provided.
Drier/ filter Molecular sieve type.
Expansion device Capillary Tube
Refrigerant R-134 a.
Controls & Indications HP / LP Cut-out Danfoss/Alco/ Castle or equivalent make.
Temperature Thermostat with Indication & 6 channel digital display
Pressure Dial pressure gauges provided
Refrigerant FlowGlass tube Rotameter Glass tube Rotameter
Water flow Glass tube Rotameter
Electrical System Supply 230 Volts, 50 Hz, 1 phase.
Input power 600 Watts.
Rated current 3.5 Amps.
Fan motor Induction type
Indicating lamps Provided for compressor.