Energy-saving climatic test chamber and method of operation

Details Energy-saving climatic test chamber and method of operation Energy-saving climatic test chamber and method of operation

F - Mech Eng,Light,Heat,Weapons

25

D

F25D 16/00 (2006.01)

Patent

CA 2588359

Climatic test chamber (10) for carrying out a sequence of specified test cycles and cooled by means of at least a refrigerating circuit (100, 200, 410) including a variable-speed compressor (120, 210, 410). During the steps of the test cycles in which said chamber (10) is held at a minimum set temperature, the compressor (120, 210, 410) operates at the minimum rotating speed thereof and the refrigeration capacity is used to cool a cold storage medium. The cold stored by the cold storage medium is then recovered to subcool the refrigerant medium during the cooling-down steps in which the compressor (120, 210, 410) operates at the maximum rotating speed thereof.

L'invention concerne une enceinte d'essai climatique (10) permettant d'effectuer une séquence de cycles d'essai spécifiés et pouvant être refroidie au moyen d'au moins un circuit de refroidissement (100, 200, 410) comprenant un compresseur à vitesse variable (120, 210, 410). Pendant les étapes des cycles d'essai dans lesquelles l'enceinte (10) est maintenue à une température définie minimale, le compresseur (120, 210, 410) fonctionne à la vitesse de rotation minimale et la capacité de refroidissement est utilisée pour refroidir le milieu de stockage froid. Le froid stocké par le milieu de stockage froid est ensuite récupéré pour un sous-refroidissement du milieu de refroidissement pendant les étapes de refroidissement dans lesquelles le compresseur (120, 210, 410) fonctionne à sa vitesse de rotation maximale.

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