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Air Conditioning Trainer General Cycle Type
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.
Refrigeration Trainer General Cycle Type
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
Ice Plant Trainer
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
Air Conditioning Trainer Window Type
Window air conditioner is becoming now a day’s necessity. The unit demonstrates the application of window air conditioner & evaluation of its performance. It consists of a small room to which a small air conditioner is connected the room is provided with a transparent front cover with a heater inside to simulate heat load in the room. Various measurements are provided so that performance of system that is COP of system, actual & theoretical cooling capacity of system & power consumption of unit with different load conditions.
SPECIFICATIONS:
1.Compressor – Hermetically sealed, Kirloskar make, having the capacity of 1/10 ton of refrigeration using R-12 refrigerant to keep room temperature between 20 to 30 c. 2.Condenser – Finned tube type, with forced air flow over the tubes, 3.Capillary tube of matched length as expansion device. 4.Evaporator – Finned tube type with forced air flow, 5.Room – 0.6 X 0.7 X 0.7 m. height, provided with transparent front wall. A heater with input control is provided inside the room. Which simulates different load conditions. 6.Measurements and Controls a) H.P. / L.P. Pressure gauges b) Digital temperature indicator to measure the temperatures at various points. c) Energy meters to measure input to compressor & heater. d) High and low pressure cutout. e) Thermostat to put off the compressor at set room temperature. f) Necessary switch for electrical components.SERVICES REQUIRED:
1.Floor area of 2m X 1 m. 2.230V, 15AC stabilized supply with earthing connection
Refrigerant Charging Unit
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.
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