65.石炭水添ガス化用チャークーラ内の伝熱特性

抄録

Measurement of heat-transfer coefficient between a fluidized bed and a heater is conducted with coke particles as fluidized particles by changing the heater location in radial direction. The heat-transfer coefficient becomes larger with increasing fluidized gas velocity and with setting the heater nearby the center of the fluidized bed. The temperature of the surface of the heater is higher at the bottom of the bed indicating that the heat-transfer coefficient shows a tendency to become smaller. The observed values of heat-transfer coefficient are compared with the calculated ones obtained from a newly proposed model.