Heat exchange – Regenerator – Checker brick structure
Patent
1983-05-23
1985-10-01
Davis, Jr., Albert W.
Heat exchange
Regenerator
Checker brick structure
34 10, 34 54, 34 57A, 16510416, 165 96, 122 4D, 422145, 422146, 422147, F28C 316
Patent
active
045440204
ABSTRACT:
Method and apparatus for regulating the heat transfer coefficient between a granular material and an exchange surface inside a heat exchanger in which a descending flow of a charge of material is arranged in the form of a mobile bed in contact with an elongated exchange member extending between lower and upper levels of the tank of the exchanger. The latter is provided with injection means for a gas into the charge of material. The flow conditions of the gas passing through the charge from below upwards are regulated so that the ascending flow speed is initially less than, at the base of the tank, the critical fluidization speed and then increases gradually to reach such critical speed at an adjustable level comprised between the lower and upper levels of the exchange member. The invention is especially applicable to heat exchangers used for cooling a granular material and/or for the heating of a heat transfer fluid.
REFERENCES:
patent: 3565022 (1971-02-01), Bishop
patent: 4313398 (1982-02-01), Ostendorf
patent: 4353812 (1982-10-01), Lomas et al.
Borgnat Daniel
Chrysostome Gerard
Creusot-Loire
Davis Jr. Albert W.
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