Heating systems – Miscellaneous – Special liquid
Patent
1976-04-19
1977-10-04
Camby, John J.
Heating systems
Miscellaneous
Special liquid
126271, 219279, F24J 302, F24D 300
Patent
active
040520005
ABSTRACT:
Solar energy is utilized to augment the heater of a water heating system, such as a domestic hot water system, having a water storage and heating tank by conducting water to the tank through a solar energy storage tank and circulating a heat transport liquid through a solar collector and selectively through the solar tank and water tank in response to the collector temperature, the solar tank temperature, and the water tank temperature, in a manner such that heat transport liquid flow occurs in a normal solar energy storage mode through the collector and the solar tank under a first set of temperature conditions, and cascade fashion through the collector, the water tank, and then the solar tank in a cascade solar energy storage mode under a second set of temperature conditions and in a maximum solar energy storage mode under a third set of temperature conditions. Heat transport liquid flow may occur through the solar collector and solar tank in response to a preset low collector temperature to prevent freezing of liquid in the collector, and the water tank heater may be shut off in response to a high collector and water temperature condition to conserve energy. The invention also provides novel solar collector and tank heat exchanger structures for the heating system.
REFERENCES:
patent: 1338644 (1920-04-01), Cartter et al.
patent: 1888620 (1932-11-01), Clark
patent: 2396338 (1946-03-01), Newton
patent: 2544474 (1951-03-01), Swanton, Jr.
patent: 2553302 (1951-05-01), Cornwall
patent: 3910490 (1975-10-01), Saypalia, Jr.
patent: 3931806 (1976-01-01), Hayes
patent: 3977601 (1976-08-01), Bearzi
Camby John J.
Cooper Allen K.
Mueller Frederick E.
Yuen Henry C.
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