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This is a book that exposes compressor knowledge.
Compressors are widely used for refrigeration, air conditioning, heat pump, electric refrigerator, car air conditioner, freezing, etc...
The cooling devices with less than 100W using vapor compression refrigeration cycle with compressors, Peltier effects, or adsorption refrigeration cycle, absorption cycle, etc. have been investigated. Scroll compressors have the advantage to be able to use them on tables without an electromagnetic interface (EMI). Scroll compressors have low noise, low vibration, low EMI characteristics. Therefore, they can be applied to many devices and various fields.
A portable oxygen concentrator is a portable device used to provide oxygen therapy to patients at substantially higher oxygen concentrations than the levels of ambient air. It is very similar to a home oxygen concentrator but is smaller in size and more mobile. The portable oxygen concentrator makes it easy for patients to travel freely. They are small enough to fit in a car. Pressure swing adsorption is used to concentrate oxygen in the air. Compressors are one of the key components in the concentrator.