Studies of a Gas-to-Gas Heat Exchanger Using Fluidized Solids

Abstract

The work reported in this thesis concerns the heat transfer rates and fluidization phenomena encountered when solids are heated by a high temperature gas stream, then transported away and brought into contact with a cold gas stream. Transport of solids through the "particle heater" fluidized bed is achieved by inclining the distributor at various angles up to 20° to the horizontal and returning the cooled solids to the top of the slope by mechanical means so as to maintain continuous circulation of solids. A review of the literature established that no similar system had been reported upon and that data on previously reported fluidization phenomena were not directly applicable to design of the type of system investigated here...