Model of a Refrigeration System with Refrigeration and Freezing State

The refrigeration system with refrigeration and freezing stages is designed for practical study of refrigeration circuits and different operating conditions. The model is mounted onto a suitable base unit, secured with fasteners and connected using refrigerant hoses to form a complete refrigeration circuit.

The system includes two separate refrigeration chambers, each equipped with an evaporator, fan and heater. The evaporators can be operated either in series or in parallel. Parallel operation allows different pressure levels and temperature ranges to be achieved for refrigeration and freezing applications.

The fans support uniform temperature distribution inside the refrigeration chambers, while the heaters can be used to simulate cooling loads. One refrigeration chamber can be operated with either an expansion valve or a capillary tube as the expansion element. Different operating modes are selected using solenoid valves.

An evaporation pressure controller allows independent adjustment of the temperature level in the upper chamber during parallel operation. All components are clearly arranged on a panel, and the temperature control, fans, heaters, compressor and solenoid valves can be operated through the software. Fault simulation is also available for practical training.

Temperatures and pressures are recorded by sensors and dynamically displayed in the software. Educational content, data acquisition, system operation and performance assessments support practical learning and evaluation.

Manufactured by Atico Export with attention to applicable quality, safety and functional requirements for technical education applications.

Specifications :

• Model of a refrigeration system for connection to a base unit
• Training system with integrated hardware/software technology
• Each refrigeration chamber includes an evaporator, fan for air circulation and heater for generating cooling loads
• Refrigeration chambers with transparent front panels
• Adjustable evaporation pressure controller
• Selectable expansion elements: expansion valve or capillary tube
• Five solenoid valves for configuring different operating modes
• Sensors for recording temperature and pressure
• Software-based operation of solenoid valves, fans, heaters and fault simulation
• Data acquisition and system control through Ethernet
• Educational software for system operation, data acquisition and learning

Technical Details :

Refrigeration Chamber :

• Length × Width × Height: 270 × 270 × 220 mm

Electric PTC Heater as Cooling Load :

• Power: 300 W

Capillary Tube :

• Length: 2 m

Evaporation Pressure Controller :

• Range: 0–5.5 bar

Measuring Ranges :

Temperature :

• 8 × ±50°C

Pressure :

• 2 × -1 to 9 bar

Required for Operation :

• PC with Windows recommended