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Evaporative cooling. 52nd Informatory Note on Refrigeration Technologies.

Type of article: Informatory note

Summary

The principle of evaporative cooling is based on the fact that the evaporation of a liquid absorbs significantly more heat than is required to raise its temperature by a few degrees. A simple example of this is the cold sensation experienced when getting out of an open-air swimming pool, in the wind, even in warm weather. Water evaporates from the skin. The heat required for the evaporation process is thus removed and the skin cools down. This process is used (in combination with others) in conventional refrigeration and air-conditioning systems. However, the term “evaporative cooling” refers to the cooling obtained solely by the evaporation of water into air. The main evaporative cooling processes are: direct evaporative cooling, indirect evaporative cooling and a combination of both. The current note describes the applications and conditions under which these processes may offer a technical and economic advantage.

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Informatory note - Evaporative cooling (English)

Pages: 12 p.

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Note d'information - Le refroidissement évaporatif (French)

Pages: 12 p.

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Summary for policymakers - Evaporative cooling (English)

Pages: 1 p.

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Résumé pour les décideurs - Le refroidissement évaporatif (French)

Pages: 1 p.

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