Two-Fluid Model for Quench Chamber of Coal Gasifier
Li Yun,Gu Zhaolin,Feng Xiao,Yu Yongzhang
(Xi'an Jiaotong University, Xi'an 710049, China)

Abstract: A two-fluid model is used to simulate the flow and heat transfer of vertical pipe in quench chamber. Calculated are the synthetic gas, ash heat transfer and flow in vertical pipe of coal gasifier. The influence of different ash concentration of coal shows that the cooling of synthetic gas is affected by the ash concentration. The gas temperature can be improved by increasing the ash concentration while low ash concentration coal is more suitable for coal gasifier.
Keywords: coal gasifier;vertical pipe;two-fluid model;numerical simulation