Author:
Błaszczuk Artur,Krzywański Jarosław
Abstract
AbstractThe interrelation between fuzzy logic and cluster renewal approaches for heat transfer modeling in a circulating fluidized bed (CFB) has been established based on a local furnace data. The furnace data have been measured in a 1296 t/h CFB boiler with low level of flue gas recirculation. In the present study, the bed temperature and suspension density were treated as experimental variables along the furnace height. The measured bed temperature and suspension density were varied in the range of 1131-1156 K and 1.93-6.32 kg/m3, respectively. Using the heat transfer coefficient for commercial CFB combustor, two empirical heat transfer correlation were developed in terms of important operating parameters including bed temperature and also suspension density. The fuzzy logic results were found to be in good agreement with the corresponding experimental heat transfer data obtained based on cluster renewal approach. The predicted bed-to-wall heat transfer coefficient covered a range of 109-241 W/(m2K) and 111-240 W/(m2K), for fuzzy logic and cluster renewal approach respectively. The divergence in calculated heat flux recovery along the furnace height between fuzzy logic and cluster renewal approach did not exceeded ±2%.
Subject
General Physics and Astronomy
Reference47 articles.
1. Heat transfer in solid - gas transport lines;Wen;Ind Eng Chem Res,1961
2. Optimization of main steam pressure control system in circulating fluidized bed boiler Guangdong Electr;Yin;Power,2011
3. Simulation of mass balance behavior in a large - scale circulating fluidized bed reactor;Blaszczuk;Particuology,2016
4. Advanced controls - fuzzy logic for fluidized bed boiler AT PLUS;Jaronen;Journal,2008
5. Suspensionto - membrane - wall heat transfer in a circulating fluidized bed combustor;Luan;Int J Heat Mass Tran,2000
Cited by
42 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献