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U.S. Department of Energy
Office of Scientific and Technical Information

High condensing recuperative furnace

Patent ·
OSTI ID:5126172
A method for heating a liquid, is described comprising the steps of: (a) providing a recuperative heat exchanger having a tube surrounded by fins; (b) circulating the liquid through the tube; (c) locating a water reservoir below the recuperative heat exchanger; (d) contacting hot combustion gases with the water in the reservoir for elevating the dew point and lowering the temperature of the hot combustion gases; and (e) directing the dew point elevated combustion gases upwardly across the recuperative heat exchanger.
Assignee:
Raytheon Co., Lexington, MA
Patent Number(s):
US 4726353
OSTI ID:
5126172
Country of Publication:
United States
Language:
English