Solar water heating system

Details Solar water heating system Solar water heating system

1981-08-10

1983-08-09

Dority, Jr., Carroll B.

Stoves and furnaces

Liquid heater

126422, 126435, 126437, 116227, F24J 302

Patent

active

043972942

ABSTRACT:
A solar water heating system is provided which includes a domestic pressurized water tank with a non-pressurized solar water storage tank placed directly atop it. Because the solar loop is non-pressurized and because the fluid (water) used in said solar loop is non-toxic, a single-wall heat exchanger may be used. Draindown is accomplished by the use of a vacuum relief valve which permits draindown whenever the pump in the solar loop is not active. A differential thermostat, in conjunction with a sensor at the collector and a sensor at the domestic water tank, senses temperature variation and activates the pump in the solar loop and the pump in the heat exchanger loop whenever a given temperature variation occurs. High efficiency is achieved through the proper placement of extraction and expulsion pipes in the domestic water storage tank, as well as the placement of the pumps within the center of the solar water storage tank and the use of a single-wall heat exchanger.

REFERENCES:
patent: 3006314 (1961-10-01), Malec
patent: 4000851 (1977-01-01), Heilemann
patent: 4034912 (1977-07-01), Hayes
patent: 4037785 (1977-07-01), Madern
patent: 4052000 (1977-10-01), Honikman
patent: 4083490 (1978-04-01), Cunningham
patent: 4130110 (1978-12-01), Bottum
patent: 4207866 (1980-06-01), Boyd
patent: 4253446 (1981-03-01), Muller
patent: 4256089 (1981-03-01), Lewis et al.
patent: 4326499 (1982-04-01), Koskela

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