In the last three years in China, more than 80 units of 135MWe circulating fluidized bed (CFB) boilers were ordered, and about two dozens of them have been put into operation. So far, the experience and performance evaluation of the boilers with such large capacity are very limited. A series of cold and hot tests were carried out on the boiler in order to optimize the operation and provide more information to the future design. The influence of coal properties, bed material fluidization, air distribution, bed temperature and pressure drop on the boiler performance such as carbon content in fly ash was assessed and discussed. Some problems of the boiler, including the bottom ash system, milling system, abrasion of the heating surface in the furnace, refractory stability, and exhaust fuel gas temperature are reported and suggestions are given for the future improvement and design.
- Advanced Energy Systems
Operational Performance and Optimization of a 465t/h CFB Boiler in China
Zhao, X, Lu, J, Yang, J, Zhang, Q, Dong, F, Yu, L, Yang, Z, & Yue, G. "Operational Performance and Optimization of a 465t/h CFB Boiler in China." Proceedings of the 18th International Conference on Fluidized Bed Combustion. 18th International Conference on Fluidized Bed Combustion. Toronto, Ontario, Canada. May 22–25, 2005. pp. 791-800. ASME. https://doi.org/10.1115/FBC2005-78051
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