Air conditioning technology is a key topic in building services engineering. For this reason air conditioning technology plays an important role during the training of skilled workers and engineers.
The clear trainer represents a complete air conditioning system with an air duct and a climatic chamber. The main components of the air conditioning system are the air cooler with condensing unit, fan, steam humidifier and air heater. Three motorised ventilation flaps control the air distribution in the air conditioning system. The climatic chamber is equipped with two different heat sources (wet and dry). Temperature and relative humidity are measured at relevant points in the air duct and displayed digitally. For the refrigeration circuit two manometers with integrated temperature scale and a flow meter provide all relevant measurements.
Learning Objectives And Experiments
- Air conditioning system and its components
- Conditioning room air
- Mixing different air flows
- Representation in the h-x diagram for humid air
- Humidification and dehumidification
- Heating and cooling
- Representation of the circuit in the log p-h diagram
- Effect of a cooling load (dry and wet)
- Recirculating and outer air operation
- In conjunction with optional accessories
- Automation in an air conditioning system
Specification
- Model of an air conditioning system with outer air and recirculating operation
- Air duct with transparent front
- Air duct with fan, air cooler, humidifier, flaps, air heater and sensors
- Chamber with wet (latent) and dry (sensitive) heat source as cooling load
- Motorised flaps for recirculating and outer air operation
- Process schematic with signal lamps
- Air conditioning system ready for different automation solutions: 4 data cable connections to integrate the accessories
Technical Data
- Compressor (air-cooled condensing unit)
- power consumption: 159W at 7,2/54,4°C
- refrigeration capacity: 380W at 7,2/54,4°C
- Humidifier
- heating power: 400W
- Air heater
- heating power: 360W
- 2 heaters in the chamber as cooling load
- power output: 0…250W each, freely adjustable
- Flow cross-section of the air duct
- WxH: 155x155mm
- Refrigerant: R513A, GWP: 631
- filling volume: 1,2kg
- CO2-equivalent: 0,8t
- Measuring ranges
- temperature: 0…50°C
- rel. humidity: 10…90%
- power consumption: 0…600W (condensing unit)
- power: 2x 0…300W (cooling load)
- pressure: -1…9bar / -1…24bar (refrigerant)
- flow rate: 1,5…23,5L/h (refrigerant)
- air velocity: 0…2,5m/s
- 230V, 50Hz, 1 phase
- 230V, 60Hz, 1 phase
- 230V, 60Hz, 3 phases
