Such a cycle develops between three pressure levels pC > pi > pF to which correspond three refrigerant saturation temperature levels qC > qi > qF (figure 2) where pi and qi are the intermediate saturation pressure and temperature respectively.
The low-pressure compressor compresses the refrigerant from pF to pi, the high-pressure compressor compresses it from pi to pC:
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(1) - DUMINIL (M.) - Cours de génie frigorifique. Institut français du froid industriel et du génie climatique. - Conservatoire national des arts et métiers (1988).
(2) - DUMINIL (M.), VRINAT (G.) - Systèmes frigorifiques et pompes à chaleur. - Travaux de recherches....
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