폐플라스틱 등 대체 연료 사용을 위한 시멘트 제조 공정의 염소 바이패스 시스템 전산유체역학 해석

Computational Fluid Dynamics Analysis of Chlorine By-pass System in Cement Manufacturing Process using Waste Plastics as Alternative Fuel

The cement industry is one of the sectors with high energy consumption and carbon emissions, which must achieve net zero carbon emissions by 2050 in relation to carbon neutrality. In the process of cement manufacturing, fuel-derived carbon emissions can be reduced by substituting the fuel such as waste synthetic resin. However, as the rate of fuel substitution increases, it is necessary to develop a control system because ingredients such as chlorine in waste synthetic resin cause poor cement quality and process instability. The probe, a chlorine bypass system, must be designed considering several factors such as cooling efficiency, minimizing operating costs, and improving facility durability to rapidly cool and remove chlorine existing in a high-temperature gaseous state. Therefore, this study analyzed the internal flow field according to the input direction of cooling air by using computational fluid dynamics and suggested the optimal chlorine bypass system.