JIANG Aipeng, LIN Weiwei, DING Qiang, et al. Operational optimization based on hybrid modeling for dry desulfurization of slurry fluidized bed boiler[J]. CIESC Journal, 2012, (9): 2783-2788.
DOI:
JIANG Aipeng, LIN Weiwei, DING Qiang, et al. Operational optimization based on hybrid modeling for dry desulfurization of slurry fluidized bed boiler[J]. CIESC Journal, 2012, (9): 2783-2788.DOI: 10.3969/j.issn.0438-1157.2012.09.017.
Operational optimization based on hybrid modeling for dry desulfurization of slurry fluidized bed boiler
Dry desulphurization system of slurry fluidized bed boiler has wide range of applications for its low cost and high desulfurization efficiency.Since fluidized bed boiler operating conditions have important influence on the desulfurization efficiency
and the increased desulfurizer can improve the desulfurization efficiency while reduce the thermal efficiency of boiler
there exists optimal operating conditions.In this paper
the SO2 concentration prediction model was firstly built with LSSVM
and then the accuracy and fast performance of the model was verified.Secondly
a comprehensive and accurate model of boiler thermal efficiency affected by desulfurizer was established through mechanism analysis. Finally
according to minimizing the enterprise’s overall operating costs
a total objective function for operation optimization was built.Based on SO2 forecasting model and boiler thermal efficiency model
and by solving the overall optimization problem
the best boiler operating conditions under different SO2 concentration limits and different SO2 emission costs were obtained.Through the operation optimization
the cost of the desulfurization operation was significantly reduced
and the desulfurization efficiency can be significantly improved.What has done in this paper has important guiding significance on the optimal operation for the dry desulphurization system of fluidized bed boiler.