甲烷水蒸气重整强化管内换热的数值模拟

以圆管内壁催化剂薄层内发生甲烷水蒸气重整反应为研究对象,对层流条件下反应及换热进行了数值模拟,分析了催化剂活性、薄层厚度、入口气体流量、入口压力、入口温度以及反应物组分比对反应和换热的影响.结果表明:催化剂薄层内的吸热反应可以有效地增强换热,降低壁面温度;提高催化剂活性和增加薄层厚度,可以增加化学反应吸热量,降低壁面温...

Numerical simulation of enhanced heat transfer in tubes using methane steam reforming

Convectional heat transfer with methane steam reforming was investigated in catalyst films on the walls of a tube.The study analyzed the effect of catalytic activity,film thickness,inlet gas flowrate,pressure,temperature and concentration on reaction and heat transfer.The results show that the heat transfer is efficiently enhanced by the endothermic reaction in the catalyst films,and the wall temperature is reduced.Increased catalytic activity and film thickness increase the reaction heat and reduce the wal...