Experimental Study on Heat Transfer in a Rolling Ash Cooler used in the CFB Boiler

From the view of the reliability and the techno-economy, the rolling ash cooler is feasible for the large-scale CFB boilers. However, existing studies on heat transfer in rolling ash cooler mainly focused on heat balance calculation and cold, hot test on the ash cooler outputs. In the heat balance calculation, the value of the overall heat transfer coefficient (a) is usually estimated by the experience, lacking of the support of experimental data.