Recirculating Air Conditioner Trainer | PolarX – 560
The Recirculating Air Conditioner Trainer PolarX – 560 models a complete air conditioning system with a transparent air duct and climate chamber. This Recirculating Air Conditioner Trainer includes an air cooler with condensing unit (360W, 400W refrigeration capacity), steam humidifier (400W), air heater (600W), and 3 motorized flaps for recirculating and outer air operation. Wet and dry heat sources in the climate chamber, each with 2x 250W heaters, simulate cooling loads, monitored by 5 Type-k temperature sensors. Optional LABVIEW-based DAQ software supports automated data measurement.
The Recirculating Air Conditioner Trainer PolarX – 560 shows a complete air conditioning system with an air duct and climate chamber through a clear, transparent design. This Recirculating Air Conditioner Trainer supports training in air conditioning technology, a key topic in building services engineering.
Product Overview Air conditioning technology has a significant impact on how engineers and skilled personnel are trained. The major elements of this Recirculating Air Conditioner Trainer are the air cooler with a condensing unit, fan, steam humidifier, and air heater. Air distribution in the system is managed by three motorized ventilation flaps.
The climatic chamber contains two different heat sources, wet and dry. Temperature and relative humidity are detected and digitally displayed at relevant locations in the air duct. Two manometers, thermocouples at relevant points, and a flow meter provide the necessary measurements for the refrigeration circuit.
Manual control is used to operate the air conditioning system. A key feature is that the system is fully ready for various automation solutions, so the user can focus on the important topic during a lesson. Available solutions include representation of the circuit in the p-h diagram, effect of a cooling load (dry and wet), mixing different air flows, and representation in the psychometric chart for humid air.
Recirculating Air Conditioner Trainer PolarX – 560, Technical Specifications
| Component | Type / Detail |
|---|---|
| System Model | Model of an air conditioning system with outer air and recirculating operation |
| Air Duct | Transparent front |
| Duct Components | Fan, air cooler, humidifier, flaps, air heater, sensors |
| Climate Chamber | Wet (latent) and dry (sensible) heat source as cooling load |
| Flap Control | Motorized flaps for recirculating and outer air operation |
| Process Indication | Process with signal lamps |
| Automation Readiness | Ready for different automation solutions |
| Refrigerant | R134a, CFC-free |
| Expansion Valve | Thermostatic |
Technical Data
Air-Cooled Condensing Unit
| Parameter | Value |
|---|---|
| Power Consumption | 360W at -10°C |
| Refrigeration Capacity | 400W at +5/40°C |
Humidifier
| Parameter | Value |
|---|---|
| Humidifying Power | 400W |
Air Heater
| Parameter | Value |
|---|---|
| Heating Power | 600W (selectable in steps), freely adjustable |
Chamber Cooling Load
| Parameter | Value |
|---|---|
| Heaters | 2 heaters in the chamber |
| Power Output | 250W each, freely adjustable |
Refrigerant Pressure Gauges
| Parameter | Value |
|---|---|
| Suction Side (low pressure gauge) | -1~16bar |
| Delivery Side (high pressure gauge) | -1~25bar |
Pressure Safety Switch
| Side | Value |
|---|---|
| Delivery Side | Not specified |
| Suction Side | Not specified |
Digital Multifunctional Power Meter
| Parameter | Value |
|---|---|
| Range of AC Volt | 0~500 volts |
| Range of AC Ampere | 0~40 Ampere |
Relative Humidity
| Parameter | Value |
|---|---|
| Range | 0~100% |
Liquid Receiver
| Parameter | Value |
|---|---|
| Maximum Working Pressure | 450psig |
| Capacity | 1.2L |
Filter Drier
| Parameter | Value |
|---|---|
| Maximum Working Pressure | 450psig |
Temperature Sensor
| Parameter | Value |
|---|---|
| Range | -40~400°C |
| Type | Type-k |
| Total | 05 |
Duct
| Parameter | Value |
|---|---|
| Flow Cross-Section, W x H | 150x150mm |
Measuring Ranges
| Parameter | Value |
|---|---|
| Power Consumption (condensing unit) | 0~650W |
| Power (cooling load) | 2x 0~250W |
| Power (heating power) | 0~600W |
| Flow Rate | 0~1.5 LPM |
| Velocity | 0~3m/s |
Key Features
- Trainer Type: Recirculating Air Conditioner Trainer with transparent air duct and climate chamber
- System Model: Outer air and recirculating operation
- Major Components: Air cooler with condensing unit, fan, steam humidifier, air heater
- Flap Control: 3 motorized ventilation flaps for air distribution
- Climate Chamber: Wet and dry heat sources as cooling load
- Condensing Unit: 360W consumption, 400W refrigeration capacity
- Humidifier: 400W humidifying power
- Air Heater: 600W, selectable in steps
- Chamber Heaters: 2 x 250W, freely adjustable
- Temperature Sensors: 5 x Type-k, range -40~400°C
- Automation Ready: Compatible with various automation solutions
Experiments
- Representation of the circuit in the p-h diagram
- Effect of a cooling load (dry and wet)
- Mixing different air flows
- Representation in the psychometric chart for humid air
- Air conditioning system and its components
- Conditioning room air
- Humidification and dehumidification
- Heating and cooling
- Recirculating and outer air operation
- Automation in an air conditioning system (in conjunction with optional accessories)
Construction and Design
The Recirculating Air Conditioner Trainer PolarX – 560 features a transparent air duct that displays a complete air conditioning system. The duct houses a fan, air cooler, humidifier, flaps, air heater, and sensors. The climate chamber includes wet and dry heat sources as cooling load. Three motorized flaps manage recirculating and outer air operation, with a process display using signal lamps. Two manometers, thermocouples, and a flow meter provide measurements for the refrigeration circuit. The system uses a thermostatic expansion valve and runs on R134a refrigerant, which is CFC-free.
Software
PolarX – 560 (optional). A DAQ software package, specially designed in National Instruments LABVIEW environment, measures and calculates the results of the apparatus. The software is optional. When the software is used, a set of electronic sensors is included. The software can be run on any Windows environment.
Scope of Delivery
- 1 Experimental module
- 1 Instruction manual
Q: What makes this trainer “recirculating”?
A: The Recirculating Air Conditioner Trainer PolarX – 560 models an air conditioning system with both outer air and recirculating operation, controlled by three motorized flaps.
Q: How is the air conditioning system operated?
A: Manual control is used to operate the system, though it is fully ready for various automation solutions.
Q: What heat sources are used in the climate chamber?
A: The chamber contains two different heat sources, wet (latent) and dry (sensible), each with 2 heaters rated at 250W and freely adjustable.
Q: What measurements are available for the refrigeration circuit?
A: Two manometers, thermocouples at relevant points, and a flow meter provide the necessary measurements.
Q: Is the DAQ software required to operate the trainer?
A: No. The PolarX – 560 software is optional, and a set of electronic sensors is included when the software is used.
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