CALCULATION AND ANALYSIS OF HEAT TRANSFER COEFFICIENTS IN A CIRCULATING FLUIDIZED BED BOILER FURNACE
A new way for the circulating fluidized bed (CFB) boiler research is proposed by the supervisory information system (SIS) in power plant level. The heat transfer coefficient in CFB boiler furnace is calculated and analyzed by the SIS calculation analysis in a commercial CFB boiler, the way how to calculate the heat transfer coefficient in SIS is introduced, and the heat transfer coefficient is accurately received by calculating a large amount of data from database. The relation about the heat transfer coefficient to unit load, bed temperature, bed velocity, and suspension density is analyzed; the linear relation could be accepted for the commercial CFB design. A new calculating and simple way for the heat transfer coefficient of CFB boiler is proposed for CFB boiler design. Using this research result, the reheat spray water flux larger than the design value in lots of commercial CFB boilers is analyzed; the main reason is the designed heat transfer coefficient smaller than the actual value.
circulating fluidized bed boiler supervisory information system heat transfer coefficient
Zhiwei Wang Jianhua Yang Qinghai Li
Thermal Power Research Institute, Xi’an, 710032, China Zhengzhou Electric Power College ，Zhengzhou, 450004, China Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Tsinghua Universi
国际会议
第20届国际流化床燃烧会议(20th International Conference on Fluidized Bed Combustion)
西安
英文
172-179
2009-05-18（万方平台首次上网日期，不代表论文的发表时间）