Heat exchanger

Details Heat exchanger Heat exchanger

1986-04-18

1987-09-08

Davis, Jr., Albert W.

Heat exchange

Movable heating or cooling surface

Rotary drum

165 40, 138 38, G05D 2300

Patent

active

046917616

ABSTRACT:
A heat exchanger which includes a turbulence promoter interposed between inlet and outlet ports of the heat exchanger and spring means made of a memory alloy for moving the turbulence promoter in a predetermined direction. The area of the heat transfer surface in which the heat transfer coefficient or the unit thermal conductance is increased by the turbulence promoter is changed in accordance with movement of the turbulence promoter. As a result, the heat exchanger effectiveness or temperature effectiveness is intentionally changed and the temperature at the outlet port of the heat exchanger is maintained within a certain range of temperature.

REFERENCES:
patent: 2915294 (1959-12-01), Christensen
patent: 3086372 (1965-04-01), Barger et al.
patent: 3957107 (1976-05-01), Altoz et al.

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