Variable cooling load refrigeration cycle

Details Variable cooling load refrigeration cycle Variable cooling load refrigeration cycle

F - Mech Eng,Light,Heat,Weapons

25

B

F25B 41/00 (2006.01) F25B 40/00 (2006.01) F25B 49/02 (2006.01)

Patent

CA 2541403

A method and apparatus for maintaining a relatively constant temperature of a working fluid in an evaporator of a refrigeration system by providing a constant volumetric displacement compressor and a heat exchanger for exchanging heat between the high pressure and low pressure portions of a refrigeration circuit to superheat, and hold substantially constant, the temperature of the refrigerant entering the compressor. In doing this, the pressure of the refrigerant in the low pressure portion of the circuit, including the evaporator, and the mass flow rate of the refrigerant remain substantially constant. As a result, the temperature of the saturated refrigerant in the evaporator remains substantially constant.

Une méthode et un appareil pour maintenir une température relativement constante d'un fluide de travail dans un évaporateur d'un système de réfrigération en prévoyant un compresseur à déplacement volumétrique constant et un échangeur de chaleur pour l'échange de chaleur entre les parties haute pression et basse pression dun circuit de réfrigération pour surchauffer, et maintenir sensiblement constante, la température du fluide frigorigène qui entre dans le compresseur. Ce faisant, la pression du fluide frigorigène dans la partie basse pression du circuit, y compris l'évaporateur, et le débit massique du fluide frigorigène restent sensiblement constants. En conséquence, la température du fluide frigorigène saturé dans l'évaporateur reste sensiblement constante.

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