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Article | REF: BE9621 V1

Heat pumps - Special applications and systems

Authors: Éric AUZENET, Michel CLERC-RENAUD

Publication date: January 10, 2006

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4. Open evolution system related to PAC

These systems, for industrial use, derive from heat pumps by opening up the cycle on either side of the expansion valve, which is generally omitted. In addition, the evaporator and condenser are grouped together in a unit that produces steam on the evaporator side, largely by condensing the same steam that has been compressed.

The compression device can be a compressor (mechanical energy input) or an ejector (fluid and steam energy input).

The fact that the same fluid often acts as both a heat transfer medium and a heat source means that these systems perform well.

4.1 Mechanical vapor recompression (MVR)

This is the most commonly used name for the process, although we may object that steam actually undergoes...

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