Lifter Design for Enhanced Heat Transfer in Rotating Counter-Current Flow Reactor and Application to One Dimensional Heat Balance Model

회전식 대향류 반응기 내 열전달 증진을 위한 리프터 설계와 1차원 열평형 모델로의 적용

Rotary kiln reactors are frequently equipped with an axial burner with which solid burden material is directly heated. Lifters are commonly used along the length of the system to lift particulate solids and increase the heat transfer between the solid bed and the combustion gas. The material cascading from the lifters undergoes drying and reacting through direct contact with the gas stream. In this study, volume distribution of materials held within lifters was modeled according to the different lifter configuration and appropriate configuration was used for the design purpose. This was applied to the one-dimensional heat balance model of a counter-current flow reactor, which contributes to the increase of the effective contact surface, and thereby enhances the heat transfer.