YU Yuzhen, DI Haikuan, ZHAO Bo, et al. Numerical simulation of flow and heat transfer of regenerator in rotary air preheater[J]. Thermal power generation, 2020, 49(11): 95-100.
YU Yuzhen, DI Haikuan, ZHAO Bo, et al. Numerical simulation of flow and heat transfer of regenerator in rotary air preheater[J]. Thermal power generation, 2020, 49(11): 95-100. DOI: 10.19666/j.rlfd.202006152.
To study the flow and heat transfer characteristics of heat storage elements of rotary air preheater
three kinds of enamel regenerative elements are numerically simulated by Fluent software
and the change images of velocity
temperature
pressure and Nusselt number and resistance coefficient at different Reynolds numbers are obtained. The results show that
with the increase of Reynolds number
the resistance coefficient of the above three kinds of plate type regenerators decreases and the Nusselt number increases. The heat transfer performance and the flow resistance of the regenerator increases with the inclined ripple. The ripple parameter is an important factor affecting the flow resistance of the regenerator
and wall temperature has little effect on it. The results can provide reference for optimal design of regenerative elements of rotary air preheaters.