Control in refrigeration systems

The article describes control in refrigeration systems. The goal of the article is to support refrigeration systems design and to define optimum parameters which influence refrigerating systems respectively. Basic task in my investigation was also an analysis of present offers and producers of control equipment for refrigeration systems. This equipment can be divided into two segments: the equipment for control simple refrigeration systems which consists of electronic thermostats for controlling elements of refrigeration rooms and miniature microprocessor devices used for controlling smallest compressor aggregates. The advantages of this equipment are its his wide consumption, low cost and simple usage. Its disadvantages are inappropriateness for complex refrigeration systems in the sense of increasing COP and electrical energy economizing. Regarding all these facts, the main emphasis of my article is on the regulation of complex refrigeration systems with the usage of programmable microprocessors and SCADA (supervisory control and data acquisition) systems.