Make complex changes of state in the otherwise closed piping systems of refrigerating plants visible and tangible. With the aim of creating a memorable concept of the theoretical comparative process through the positions of the components and pipes, this trainer makes an important contribution to the recognition of technical analogies in real plants. In refrigeration plants, the cooling effects are used for cooling. If the heat system is used to produce heat, this is known as a heat pump.
The ET 380 trainer provides an insight into the process of phase change and creates a didactic bridge to the theoretical comparative process, the log p-h diagram.
All relevant measured values are captured by sensors. The simultaneous transmission of the measured values to a PLC enables easy analysis and the representation of the process in the log p-h diagram. Complex processes, such as changes of state, are visualised by real-time representation of the cycle, e.g. in the log p-h diagram. Intuitive operation of the PLC makes it easy to adjust all elements of the cycle. The effect of the modifications is immediately visible on the touch screen.
The PLC provides accurate data on the condition of the refrigerant, which is used for the accurate calculation of the refrigerant mass flow. The calculation therefore provides a much more accurate result than measurement with conventional methods.
The trainer is controlled by a PLC via touch screen. With an integrated router, the trainer can alternatively be operated and controlled via an end device. The user interface can also be displayed on additional end devices (screen mirroring). Via the PLC, the measured values can be stored internally.
Digital multimedia teaching material is available at the Science Media Center. In addition to real-time representation directly on the unit, Game-Based Learning is made possible with these online media, e.g. worksheets, e-learning, videos, etc.