Aréna Environnemental

Co2 Québec

En plus de garder les aliments au frais, l'Eco2-System chauffe et climatise le bâtiment en récupérant la chaleur qui'l produit.

Réfrigération

Le Co2 est utilisé depuis fort longtemps en réfrigération, mais l'Eco2-System, dévéloppé par le Groupe CSC est unique en son genre.

L'impact sur l'environnement

L'Eco2-System est un system ''VERT'' et son impact sur l'environnement équivaut à enlever 2 m

The boiling of water, or vaporization of refrigerant is a constant pressure process. So it is represented by a horizontal line as shown. The water (or liquid refrigerant) starts off on the left side and as it warms up it approaches the left hand side of the saturation curve. At point 1 it starts to boil (like the kettle). Heat is being added so the condition point is still moving along towards the right. When point 2 is reached, all the liquid has turned into vapour. Point 2 is saturated vapour, because it only just contains sufficient enthalpy to be vapour. Between points 1 and 2 the liquid part, and the vapour part of the mixture are termed Saturated. If more heat is added, the vapour becomes hotter, this is called Superheated Vapour.

Condensation
Condensation occurs when the vapour turns back to liquid. The vapour starts off on the right hand side and as it cools down it approaches the right hand side of the saturation curve. At point 3 it starts to condense and this continues until point 4 when all the vapour has turned into liquid. Point 4 is saturated liquid. If more heat is removed, the liquid cools. It is then called subcooled liquid.

Condensation is shown at a higher pressure than evaporation, but either process may take place at any pressure below the critical pressure. For refrigeration, when the liquid has been used up by evaporation at low pressure which cools the cold space, the vapour is compressed to the higher pressure where condensation can occur. At the higher pressure, heat can be lost to the atmosphere and the refrigerant becomes high pressure liquid. To complete the process all that's needed is raise the pressure of the vapour by drawing a vertical line upwards, and then allow the liquid pressure to diminish so that the liquid can get to point 1 and start again. Simple as that? Take a look at the Vapour Compression Cycle.

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