Adsorption refrigeration process and apparatus

Abstract

Abstract 1. Method of refrigeration by adsorption, using in a closed refrigeration circuit having a single sense of circulation of the refrigerant fluid, an absorbent (11) which is cyclically submitted at a selected and adjustable frequency to a desorption by heating and to an adsorption by cooling through constantly available means of adjustable power, the refrigerant fluid released by the desorption being liquified in a condenser and then vaporized in an evaporator to produce cool prior to being returned to the adsorbent to be fixed thereon again by adsorption, characterized in that, in order to obtain an adjustable refrigeration power, it comprises within this process of operation simultaneously a hermetic separation of the adsorbent (11) within the refrigeration circuit during selected intervals of time (t0 -t1 ; t2 -t3 ) of shiftings imposed between each of its desorptions and adsorptions, and an imposition of the gaseous refrigerant fluid released by the adsorbent (11) to an accelerated liquefaction within the condenser (5) by continuously available cooling means of adjustable power and activated during each of its desorptions and the selected time interval (t2 -t3 ) of shifting imposed between this desorption and the subsequent adsorption (14), to a vaporization within the evaporator (7) caused by passing through an expansion member (6) and accelerated by forced thermal exchange with the ambient air caused by continuously available means (15) of adjustable power which are activated during each of its adsorptions and the selected interval of time (t2 -t3 ) of shifting between this adsorption and the preceding desorption, to a refrigeration of the adsorbent (11) by continuously available means (13) of adjustable power which are activated during each of its adsorptions and the selected interval of time (t2 -t3 ) of shifting imposed between this adsorption and the preceding desorption, and to a heating with adjustable power which is activated during each of its desorptions and the selected interval of time (t0 -t1 ) of shifting imposed between this desorption and the preceding adsorption.

Inventors

• 👤 Georges Rigot

Bibliographic Details