Astra Scientific Computerized Air Conditioner Trainer

The Air conditioner trainer examines the operation and effect of the individual components of an air conditioning system. Includes all the components also used in building services engineering. Particular importance was placed on the use of original components.
For air conditioning, air cooler (direct evaporator with condensing unit), steam humidifier, fan, air preheaters and reheaters are arranged in an open-air duct. Each of these components can be switched on or off individually. The effect of each individual component on the conditioning of the air is as interesting as the effect of any combination of components.
Sensors record the air temperature and air humidity before and after each stage as well as the pressures and temperatures of the refrigerant. The flow rate of the refrigerant is determined by means of the pressure measurement. The measured values can be read on digital displays. At the same time, the measured values can also be transmitted directly to a PC via USB. The data acquisition software is included.
FEATURES:
•    Setup of an air conditioning system: main components and their function
•    Variables in air conditioning
•    Measure temperature and air humidity
•    Effect of the airflow
•    Changes of state in the h-x diagram
•    Cyclic process in the log p-h diagram
•    Determine heating and cooling capacities
•    Air conditioning system with steam humidifier
•    Wide experimental program for conditioning of room air
 
SPECIFICATION:
•    Steam humidifier
Power consumption: 4kW
Steam capacity: 5,5kg/h, switchable in three stages
•    Fan
Power consumption: 167W
Max. Volumetric flow rate: 1150m3/h
Speed: 1000…2600min-1
Pmax: 460Pa
•    Air preheater: 1kW, switchable in two stages
•    Air reheater: 2kW, switchable in two stages
•    Air duct, WxH: 300x350mm
•    Direct evaporator as air cooler: 6kW
•    Condensing unit
Power consumption: 968W at 5/25°C
Refrigeration capacity: 2,3kW at 5/25°C
•    Refrigerant: Refrigerant: R134a/22/etc
Filling volume: 3,3kg
CO2-equivalent: 2,1t
•    Measuring ranges
Differential pressure: 0…100Pa
Temperature: 5x 0…50°C, 4x -100…200°C
Humidity: 5x 10…90%
Pressure: -1…15bar, -1…24bar (refrigerant)
Flow rate: 8…102L/h (refrigerant)
•    Required for operation
230V, 50Hz, 1 phase
230V, 60Hz, 1 phase