The Plant uses ice can system. The cans filled with fresh wafer are kept in a tank in which brine is circulated. The brine is cooled by the refrigerant, which in turn cools the water in can and ice formation takes place.
SPECIFICATIONS:
1.Compressor : Kirioskar make hermetically sealed compressor using R 12 Refrigerant.
2.Condenser : 4 row type air cooled.
3.Expansion Valve : 0.5 TR capacity.
4.Evaporator : 1/2″ O.D. copper tube – 75 feet long.
5.Filter – Drier : Silica gel filled – 3/8″ flare connections.
6.Main Tank : 600 mm X 375 mm
7.Total Ice Cane Capacity : 7 Kg
8.Ice Making Capacity : 7 Kg / 4 Hours.
9.Thermocol insulation : 6.5″
10.Brine Stirrer : Motor driven fan, 1 phase, 1/10 HP, 1440.
INSTRUMENTATION:
1.Temperature Indicator : Digital Type O300°c, with 1 °c least count, using Cr/Al thermocouples.
Accuracy 1 % of full reading. 2.Compressor Energy Meter : Single Phase, 10 – 20 Amp. Capacity.
3.Pressure Gauge:
a)0-21 Kg/cm2
b) -1 to 10.6 Kg/cm2
c) Both of 65 mm dial.
4.Digital Thermometer
CONTROLS :
1.HP/LP Cutout : Auto reset type.
2.Thermostat : Auto reset type.
A technical manual accompanies the unit.
SERVICES REQUIRED:
1.Floor Area – 2m. X 1.5m. X 1.5m. Height.
2.220 V., 15 Amp.Single Phase Stabilized power supply
The apparatus consists of a storage water tank, embraced by evaporator coil of the cooling unit, cooling cycle comprises of a hermetically sealed compressor, air-cooled condenser, a capillary tube as expansion device and an evaporator cell. The stainless steel water tank is provided with insulation on air Sides and a door are provided at the top. Cold water can be taken out from a top provided and inlet water supply is controlled by a bail-operated top. Various measurements provided enable students to determine the theoretical and actual COP, power consumption, actual cooling capacity refrigerant flow and compressor volumetric efficiency of compressor.
SPECIFICATIONS:
Cooling Cycle
a) Compressor Hermetically sealed type, having the capacity of 1/3 ton of refrigeration using R-12 refrigerant.
b) Finned tube type air colled condenser with forced air flow.
c) Filter cum drier for refrigerant.
d) Capacity expansion device.
e) Evaporator coil embraced on stainless steel water tank, Provided with glass wool Insulation.
2.Water drain tap and float operated inlet water tap are provided for water tank with insulated lift door at top.
3.Measurement
a) Pressure gauges for evaporating and condensing pressure.
b) Thermometers to measure refrigerant temperatures at inlet and out let of condenser and evaporator.
c) Dial type thermometer for water temperature.
d) Rotameter to measure liquid refrigerant flow.
e) Energymeter to measure compressor Input.
4.Safely & Controls –
a) Thermostat to put off compressor at set water temperature.
b) Pressostat to put off compressor if high or low pressure Goes out of set limit.
c) Over load protector for compressor,
A technical manual will be supplied along – with the unit. Also, the unit is provided with an attractive and anti corrosion powder costing.
SERVICES REQUIRED:
1.Floor space of 1.5 m. X 1.5 m.
2.Water supply of 5 lit/min,
3.230 V, 15A AC stabilized supply with earthing connection
Desert Cooler Trainer works on the principle of evaporative cooling. It is used mostly in the dry hot regions; it consists of a fan which sucks the air from atmosphere through the pads which are used in desert coolers very frequently. The difference in DBT & WBT at inlet and outlet can be measured hence the RH from the charts. Also the amount of water evaporated can be calculated by knowing the water level difference in the reservoir.
SPECIFICATIONS:
1.Fan connected to 1/2 HP motor.
2.Air Cooler Pump to circulate water.
3.DBT & WBT Measuring Thermometer at inlet and outlet.
4.Orifice meter with manometer to measure the air flow.
A technical manual accompanies the unit.
SERVICES REQUIRED:
1.Floor Area – 1, X 1 m. X 1 -5m. Height.
2.220 V., 15 Amp. , Single Phase Stabilized power supply
This apparatus is used to calculate the wind or air velocity it has a special probe that can easily enter into air ducts. We can place the anemometer inside the air ducts of air conditioner and record the air velocity.
This charging unit is fitted with motorised vacuum pump and other safety devices like pressure gauge. With the help of this charging unit students can charge the refrigerant gases into compressor or store the gas of a refrigerator or air conditioner inside the cylinder fitted inside the charging unit that can be used later.
The unit consists of ducting fitted with various air conditioning components. Airflow is generated by an axial flow fan and in the airflow, heaters, cooling coil and steam humidifier connection is provided. Cooling circuit consists of a hermetic compressor; air cooled condenser, thermostatic expansion valve and evaporator (i.e. cooling coil). Measurements of various parameters Torn cooling cycle and heating cycle are provided and students can easily visualize and understand the basic principles of air conditioning.
SPECIFICATIONS:
1.Cooling circuits – It consists of:
a) Hermetic compressor, having the capacity of 2/3 ton of refrigeration (approx.) using R-22 refrigerant.
b) Rotameter for liquid refrigerant flow measurement.
c) Pressure gauges for high and low pressure.
d) Prescott (i.e. high and low pressure cut-out).
e) Thermometers for temperature measurement at various points In the cycle.
f) Energymeter for compressor input measurement.
g) Condensate measuring arrangement.
2.Heating Circuit – Air heaters with input control provided with energymeter for input measurement. Maximum heating capacity 1 Kw.
3.Steam generator and injector for humidification of air. All above components are connected to a duct of size 200mm. X 200mm. in which airflow is generated by axial flow fan.
4.Anemometer for measurement of air velocity, (range 0-15 m/sec. Following experiments can be conducted on the unit
a) Cooling of atmospheric air.
b) Heating of atmospheric air.
c) Humidification of atmospheric air.
d) Dehumidification and heating of atmospheric air.
(Cooling coil acts as dehumidifier at reduced airflow.)
SERVICES REQUIRED:
1.440 V, 15 A, 3 Phase supply with earthing connection.
2.Floor space area about 3 m. X 2 m.
The unit consists of vapor compression refrigeration cycle provided with components normally used in refrigeration system so that student can get familiar with the components. Various measurement provided enable students to estimate the performance of the system.
SPECIFICATIONS:
1.Compressor- Hermetically sealed compressor, having capacity of 0.3 T.
2.Expansion Devices
a) Thermostatic Expansion Valve
b) Capillary tube.
3.Evaporator coil.
4.Controls:
a) Services Valve
b) Solenoid Valve
c) Filter-Drier for refrigerant
d) High/Low pressure cutout
e) Thermostat.
5.Measurements:
a) Thermometers (mercury in glass) – 4 Nos.
b) Pressure gauges for condensing and evaporating pressure.
c) Energymeter for compressor
d) Voltmeter and Ammeter for compressor.
e) Rotameter for liquid refrigerant flow measurement.
A technical manual is accompanies the unit.
SERVICES REQUIRED:
1.Floor surface area – 1m x 2m x 2m height.
2.220V, I5Amp, Single Phase Stabilized power supply
This model will be made out of original parts. The model will be suitably sectioned to demonstrate the internal construction details showing the minute information, and working of the same, the model will be suitably painted and mounted on a metal or wooden base & supplied with key card & very interesting literature regarding working of the same.
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