(Eng sub) Two-stage Compression Refrigeration System

Training of Production and Process Engineering (Two-stage Compression Refrigeration System)
You can deepen your understanding by reading the video together with the text.
This is an introduction to the refrigeration system in the Marine Bioresources Research Building.
This is a device that can be frozen at -60 ℃ and can be frozen with an air blast freezer and a contact freezer.
It has a more complicated mechanism than a one-stage compression refrigerator to enable ultra-low temperature, but it is a relatively simple mechanism if you can understand the function of the supercooled.
This device cannot operate the air blast freezer and the contact freezer at the same time.
In this video, the air blast freezer is driving.
Although the contact plate of the contact freezer is touched in this video, the operation of the contact freezer is stopped at this time.
It is dangerous to touch with bare hands while driving the contact freezer.
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