Heating – Processes of heating or heater operation – Of heating a fluid
Patent
1976-11-26
1978-08-01
Camby, John J.
Heating
Processes of heating or heater operation
Of heating a fluid
126 91A, 431 10, 431208, 432223, F24H 136, F24H 100
Patent
active
041040180
ABSTRACT:
A combuster is provided for utilizing a combustible mixture containing fuel and air, to heat a load fluid such as water or air, in a manner that minimizes the formation of nitrogen oxide. The combustible mixture passes through a small diameter tube where the mixture is heated to its combustion temperature, while the load fluid flows past the outside of the tube to receive heat. The tube is of a diameter small enough that the combustible mixture cannot form a flame, and yet is not subject to wall quench, so that combustion occurs, but at a temperature less than under free flame conditions. Most of the heat required for heating the combustible mixture to its combustion temperature, is obtained from heat flow through the walls of the pipe to the mixture.
REFERENCES:
patent: 3393690 (1968-07-01), Chu et al.
patent: 3709473 (1973-01-01), Ito et al.
patent: 3826079 (1974-07-01), Quigg et al.
patent: 4012904 (1977-03-01), Nogle
Camby John J.
Grifka Wilfred
Manning John R.
Mott Monte F.
The United States of America as represented by the Administrator
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