Refrigeration – Disparate apparatus utilized as heat source or absorber – With vapor compression system
Patent
1986-12-15
1989-08-01
Bennet, Henry A.
Refrigeration
Disparate apparatus utilized as heat source or absorber
With vapor compression system
237 2B, F25B 2700
Patent
active
048523666
ABSTRACT:
A heat pump installation for generating, for example, either hot water or cool air utilizing a low grade heat source. The installation comprises an oil filled inner tank having mounted and immersed therein an electric motor-compressor unit and an external tank for heating and circulating such water having mounted therein the inner tank in such a manner as to avoid contamination of the oil by the water. Mounted near the bottom of the outer tank in the immediate proximity of the cold water intake is an internal sub-cooling coil which helps to increase the efficiency of the installation. Also, to further increase the efficiency of the installation, preferably there is included an external sub-cooling coil mounted externally from the external tank. Such external sub-cooling coil comprises a primary coil through which the major portion of the refrigerant flows and a secondary coil which serves to withdraw heat from the primary coil. When the heat pump installation utilizes as a low grade heat source exhaust gases or combustion products flowing through an exhaust pipe, the invention further provides for a heat exchanger for deriving the heat from such exhaust gases. The heat exchanger may easily be spliced into an existing exhaust pipe thus allowing the exchanger to withdraw heat from the exhaust gases without substantially diverting the flow of such gases.
REFERENCES:
patent: 2314591 (1943-03-01), McCormack
patent: 2668420 (1954-02-01), Hammell
patent: 4517799 (1985-05-01), Hanaoka et al.
patent: 4621501 (1986-11-01), Tanaka
Bennet Henry A.
Conserve, Inc.
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