Understanding the Use of Coal Char Kinetic Models in commercial CFD Codes
상용 CFD 코드에서 사용되는 촤 반응속도 모델에 대한 이해
Abstract
Commercial computational fluid dynamics (CFD) codes traditionally rely on the computational efficiency of the simplified single-film apparent char kinetic model to predict char particle temperatures and char conversion rates in pulverized coal boilers. The aim of this study is to evaluate the reliability of the single-film apparent kinetic model and to suggest the importance of proper use of this model. For this, a parametric study was conducted with a consideration of main parameters such as Stefan flow, product species, particle evolution, and kinetic parameters.
Keywords
- Commercial computational fluid dynamic (CFD) code;
- single-film apparent char kinetic model;
- Pulverized coal boiler;
- Parametric study