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Article | REF: BE9723 V1

Introduction to refrigeration - State of the art. Implementation

Author: Paul RIVET

Publication date: October 10, 2013

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7. Other refrigeration technologies

We can turn to other existing or developing alternatives.

  • Absorption

    This is a chemical refrigeration process using two liquids, an absorber, a boiler and a condenser. In turn, the solution (e.g. water + ammonia) is depleted of refrigerant by heat extraction, and must then be reconcentrated.

    Absorption systems have been in use since the advent of artificial cooling around 1850 (water + ammonia mixture) with Ferdinand Carré's machines, and around 1940 with water + lithium bromide mixture.

  • Adsorption

    In this case, the couple is a state-changing fluid and an adsorbent solid (e.g. zeolite) that needs to be regenerated by heating.

  • Magnetic cooling...

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