Refrigerator & Air Conditioning Lab

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)

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.

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.
Electrical System	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 )

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)

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 )

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.

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