Spiral-passage heat exchanger

Details Spiral-passage heat exchanger Spiral-passage heat exchanger

1978-03-10

1980-06-10

Dority, Jr., Carroll B.

Stoves and furnaces

Tool having fluid fuel burner

Curling iron

126435, 126442, 165165, F24J 302

Patent

active

042067464

ABSTRACT:
A spiral passage chemical converter-heat exchanger formed by a cross-sectally rectangular housing containing a pair of rows each containing a plurality of side-by-side passages. The rectangular housing is wound into a spiral with the innermost row forming inlet passages and the outermost row forming outlet passages. Thermal contact exists between inflow passages and outflow passages. The outer end of the spiral is connected with an inlet and an outlet. The inlet joins the innermost row of passages and the outlet joins the outermost row of passages. The inner end of the spiral is capped, with a common wall separating the upper and lower passages slotted so that fluid flows from the inlet passages to the outlet passages. As can be seen when the structure is in a spiral, the inlet passages are between the outlet passages with the outlet passages forming the outer exposed surface of the spiral and the inlet passages forming the surface of the opening through the spiral at the center. A concave sunlight reflector will focus sunlight into the central opening of the spiral thereby heating the fluid in the inlet passages. Since the outlet passages are separated by the inlet passages in the spiral and are in thermal contact therewith, the solar heated outlet fluid will heat the input fluid as it circles the spiral to the outlet passages. Thus, the outlet passages aid in heating the inlet fluid during passage to the inner end of the spiral. The inlet passages may contain a porous catalyst which is prevented from escaping by a suitable structure at each end of the inlet passages for dissociating a fluid for storage of heat for future use.

REFERENCES:
patent: 3972183 (1976-08-01), Chubb

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