With this training system practical experiments relating to the operation of a refrigeration system can be implemented by dealing with differently configured compression refrigeration circuits. The components used are common in refrigeration and therefore closely related to practice.
The base unit includes the main components of a refrigeration circuit: a condensing unit with compressor, condenser and receiver and a refrigeration chamber with integrated evaporator, fan for forced ventilation and an electric defrost heater. A pressure switch protects the compressor against excessive pressure. The refrigerant flow can be modified via shut-off valves.
Together with the components from. heat exchanger, flow meter or manometer, simple refrigeration circuits are realised. For continued experiments additional refrigeration components from are used, e.g. post-injection valve, capacity controller or defrost timer. All components of the training system have ball valves at the connections. Using the required accessory kit the components are connected into a complete refrigeration system. For the complete experimental setup, laboratory workplace with frame for mounting the components and power supply, is required. The CFC-free refrigerant R134a serves as working medium.
With the service set additional exercises for the filling and evacuation of refrigeration systems are carried out. The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments.
The unit shall perform the following experiments and investigations:
Learning Objectives / Experiments
In conjunction with :
Refrigeration Components for Basic Experiments
Refrigeration Components for Advanced Experiments
Maintenance Set
Design of compression refrigeration circuit
Draining and filling of refrigeration systems
Operation of refrigeration components
Cyclic process of cold production
Fault finding
Different operating modes of the receiver
with and without receiver
pump-down
filling the refrigeration circuit
Compare different expansion elements
A structured curriculum and a detailed representation of the range of experiments is available in our product brochure Refrigeration Training System
Specification
Base unit for the refrigeration training system
Extension with components from for basic experiments using simple refrigeration circuits
Extension with components from for advanced experiments in refrigeration systems
Condensing unit, consisting of hermetic compressor, condenser, receiver, pressure switches and shut-off valves
Insulated refrigeration chamber with integrated evaporator, electric defrost heater and condensate drip tray
Refrigeration chamber, condensing unit and power supply equipped with shock-proof lab jacks