The re-circulating air conditioning trainer is designed to study different air conditioning processes & performance analysis of refrigeration cycle in Air Conditioning. The trainer consists of an air conditioned chamber which houses the electric load bank. The heater load is controlled by a dimmer. There are three ducts, each for Fresh Air, Recirculated Air & Exhaust Air. Each duct is fitted with damper to control amount of air flowing through it. In order to study Humidification process a Steamer is also provided.
The refrigeration system consists of a hermetically sealed compressor, air cooled condenser, expansion device & finned tube evaporator. The evaporator coil is fitted inside the inlet duct. Refrigerant R-22 is used in the trainer.
The measuring instruments are provided to measure Temperature & pressure of refrigerant cycle, Refrigerant Flow, Power Supplied to compressor & Heater Load.
• Demonstration of Air Conditioning Cycle.
• Calculation of coefficient of performance in Air Conditioning
• To study effect of recirculation of Air on performance of Air conditioning system
• Plotting Pressure-Enthalpy Diagram
• To study Humidification & Dehumidification Process
• Plotting Air Conditioning Process on Psychometric Chart
• Compressor: Hermetically Sealed, Capacity 1 Ton, 230 V AC.
• Condenser: Finned Copper Tube Condenser with condenser fan & motor
• Evaporator: Finned Copper Tube Evaporator with evaportator fan & motor
• Expansion Device: Capillary Tube
• Steamer: Electrically Heated Steamer for Humidification Process
• Air Pre Heater: 500 W, 230 V AC
• Pressure Switch: Low / High Pressure Safety Switch
• Thermostat: Mechanical Thermostat for Room Temperature Control
• Flowmeter: Glass Tube Rotameter for Refrigerant Flow
• Pressure gauge: 0 to 500 PSI
• Compound gauge: -30 to 150 PSI
• Electric Heater: Capacity 2 kW, Supply 230 V AC
• Dimmer: Range 0-250 V AC, 2 kW
• Digital Voltmeter: Range 0-500 V AC
• Digital Ammeter: Range 0-10 A AC
• Temperature Sensors: Pt 100 temperature sensors – 8 Nos.
• Temperature Indicator: 8 Channel Indicator with Selector Switch, Range 0-199.9 °C
• Frame: Made of M.S. Square Tubes & Sheets, Welded & Powder coated.