Question

Differences between positive displacement and dynamic compressors

Answer 1

Positive displacement compressors can achieve high pressures at the expense of volume. A dynamic compressor can achieve high volume flows and low increases in pressure. ... The difference between positive displacement and dynamic compressor is. In positive displacement pressure is increased by displacing the fluid

Answer 2

Hello friends,

The basic one-line difference between positive displacement compressor (PDC) and dynamic compressor (DC) lies in the fact of how they apply the pressure on a fluid. In PDC a mechanical linkage reduces the volume of fluid physically to increase the pressure whereas in DC the fluid is provided some velocity which undergoes a diffuser resulting in the increase in pressure.

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