If compression is achieved by trapping a refrigerant vapour in an
enclosed space and then reducing its volume, then it is called :
यदि एक बंद स्थान में रेफ्रिजरेंट वाष्प को फंसाकर और फिर उसकी मात्रा को कम करके संपीड़न प्राप्त किया जाता है, तो इसे कहा जाता है:
Roto-dynamic
type compressor
Open type
compressor
Radial-flow
type compressor
Positivedisplacementtypecompressor
Positivedisplacementtypecompressor
In positive
displacement type compressor, the pressure of the refrigerant vapour is
increased by first trapping a given amount of refrigerant and then reducing the
volume of the trapped refrigerant by the movement of piston, vanes etc.
Hence, the
correct option is (D).
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