Development of an Efficient Modelling Approach for Fin-Type Heat-Exchangers in Self-Recuperative Burners

Self-recuperative burners are a common solution for efficient combustion systems in industrial furnaces. Due to the geometric complexity of recuperators, detailed CFD simulation is computationally expensive and not feasible models burner-integrated such as radiant tubes. Especially FSI studies tubes, temperature tube surrounding burner decisive final results. The exclusion recuperator from introduces significant uncertainties simulations presented paper describes an innovative, approach model fin-type which geometrically reduced. resulting acceleration numerical makes fully dynamic modelling possible. Specifically designed source terms used pressure loss heat transfer inside match results obtained with model. show deviations total less than 1.3% 98.5% reduction mesh size. computational savings enable comprehensive air preheat accurately replicate flow profiles recuperator.