Heating systems – Processes
Patent
1975-10-08
1977-08-09
Wayner, William E.
Heating systems
Processes
F24D 102
Patent
active
040405672
ABSTRACT:
Disclosed is a heating unit consisting of a boiler chamber in which a two-phase liquid system is placed under a slight vacuum and supplied with a source of thermal energy. The activation of the source of thermal energy causes the lower phase liquid to vaporize and percolate through the upper phase liquid and circulate into a radiator section made up of finned tubes with an air flow being directed thereacross. The air flow absorbs the heat of the vapor which then is directed to the areas to be heated. The vapor continues to circulate into a header where the vapor is condensed back to the liquid state by a plurality of finned condensation tubes inside the header. The finned tubes of the radiator section have 90.degree. elbows extending upwardly into the header to prevent any condensed liquid from returning into the radiator of the system, and directing the vapor toward the coldest side of the header so as to enhance the condensation process. The liquid is returned to the boiler chamber via a return line with a one-way gate, thereby creating a one-way circulation within the system which promotes higher efficiency. The two-phase liquid system is made up of two non-miscible liquids, the lower one having a higher specific gravity, a low specific heat, and a boiling point above 200.degree. F., such as tetrachloroethene. The upper liquid has a lower specific gravity, a relatively high specific heat and high boiling point relative to the lower liquid such as an oil. The upper phase is kept to a thin layer such that it completely covers the lower phase but does not unduly hamper percolation of the lower phase therethrough as it is vaporized.
REFERENCES:
patent: 3210005 (1965-10-01), Arnold
patent: 3933198 (1976-01-01), Hara et al.
Condensed Chemical Dictionary, 14th ed. Reinhold Publishing Co., 1964, p. 865.
Textbook of Organic Chemistry, D. Van Nostrand Co., Inc., 1958, p. 94.
NEPRO, Inc.
Tapolcai, Jr. William E.
Wayner William E.
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