Temperature-stabilized heat exchanger

Details Temperature-stabilized heat exchanger Temperature-stabilized heat exchanger

1992-06-05

1994-06-28

Davis, Jr., Albert W.

Heat exchange

Regenerator

Movable heat storage mass with enclosure

165 8, 165 10, 422206, 422222, F23D 1904

Patent

active

053238427

ABSTRACT:
A heat exchange module comprises a rotating-wheel type regenerative heat exchanger unit having a plurality of heat exchange elements mounted in baskets through the volume of the heat exchanger wheel. The heat exchanger wheel rotates about its axis so that the heat exchange elements are heated by a hot gas flow over a portion of the rotation, and transfer the heat to an air flow over another portion of the rotation. At least some of the heat exchange elements include phase change materials, such as salts, that absorb heat while maintaining a constant temperature. The phase change materials narrow the range of temperatures reached by the heat exchange elements located at various positions of the heat exchanger wheel. The phase change materials prevent excessively low temperatures that can result in condensation of corrosive acids on the surfaces of the heat exchange elements. They can also stabilize the heat exchange elements in particularly desirable temperature ranges for the operation of catalysts coated onto the heat exchange elements.

REFERENCES:
patent: 4351806 (1982-09-01), Galloway
patent: 4602673 (1986-07-01), Michelfelder et al.
patent: 5086831 (1992-02-01), Paihert et al.
J. Schroder, "Thermal Energy Storage and Control," Trans ASME, J. Eng. for Industry, pp. 893-896 (1975).
W. Rohsenow et al., "Handbook of Heat Transfer Applications", pp. 8-5 and 8-31 to 8-39 (1985).
John J. Tomlinson et al., "Thermal Energy Storage", Mechanical Engineering, pp. 68-72 (1990).

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