F - Mech Eng,Light,Heat,Weapons – 25 – B
Patent
F - Mech Eng,Light,Heat,Weapons
25
B
62/25
F25B 13/00 (2006.01) F25B 25/02 (2006.01) F25B 29/00 (2006.01) F25B 49/00 (2006.01) F26B 5/06 (2006.01) F26B 23/00 (2006.01)
Patent
CA 1066525
ABSTRACT The invention provides a "COORDINATED HEAT PUMP SYSTEM" which simultaneously satisfies the thermal needs of both the heat source and the heat sink. The heat pump system of the present invention is adapted to continuously withdraw heat from a heat source and continuously deliver heat at a required rate to a heat sink such that the ratio of the heat delivered to the heat withdrawn may be controlled by a cooling means, said heat pump system comprising a compressor adapted to compress at least a portion of refrigerant vapour from an evaporator thereof wherein a refrigerant withdraws heat from said heat source, a condenser in which refrigerant vapour so compressed is condensed and delivers heat to said heat sink at the required rate, a cooling means for balancing the rates of heat delivery and heat withdrawal, an expansion valve for expanding liquid refrigerant from said condenser into said evaporator, and a liquid-vapour suction line heat exchanger for adequately superheating the refrigerant vapour prior to its compression in said compressor. The coordinated heatvpump system of my present invention can be advantageously employed in processes and systems such as ordinary drying with air, vacuum drying, freeze-drying, etc. used in processing of fish, food and chemicals as well as in many other situations requiring the two thermal needs (the cooling and the heating) to be simultaneously satisfied, thus not only substantially eliminating the need to supply heat from any external heat or energy source but also drastically reducing the heat that other- wise must be rejected into the environment.
278594
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