Flow Pattern and Heat Transfer in Tube Banks of a Simulated Fluidized-Bed Heat Exchanger

Abstract

A simulated fluidized-bed heat exchanger with tube banks was visualized using a neutron rediography system. Observed flow pattern indicated an importance of the tube arrangement. Heat transfer experiment, conducted simultaneously, indicated a close relationship between the heat transfer and flow pattern. The staggered arrangement with relatively small pitch has a potential of high heat transfer performance.