Very high temperature heat exchanger

Details Very high temperature heat exchanger Very high temperature heat exchanger

F - Mech Eng,Light,Heat,Weapons

28

F

F28F 13/18 (2006.01) F28F 13/00 (2006.01)

Patent

CA 2107464

A high temperature fluid-to-fluid heat exchanger (10) is described wherein heat is transferred from a higher temperature fluid flow core region (75) to a lower temperature fluid flow annulus (50). The wall (54) separating the high and low temperature fluid flow regions is comprised of a material having high thermal absorptivity, conductivity and emissivity to provide a high rate of heat transfer between the two regions. A porous ceramic foam material (60) occupies a substantial portion of the annular lower temperature fluid region (50), and is positioned to receive radiated heat from the wall (54). The porosity of the ceramic foam ma- terial (60) is sufficient to permit a predetermined relatively unrestricted flow rate of fluid through the lower temperature fluid flow region (50).

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