Abstract

Boiler efficiency is influenced by many factors. In order to find and realize optimum efficiency of boiler , the concept of controllable operating parameter is introduce to select the parameters and optimize them. Finally, 3 parameters are determined to participate in optimization, namely, excess air coefficientα ,exhaust gas temperature py ϑ and main steam flow D. Then this paper conclude the relationship between these parameters and boiler efficiency respectively. By using the function optimization algorithm based on genetic algorithm and nonlinear programming, the optimum scheme of boilers and calculate optimal solution of glzy η is achieved, that is glzy η =93.110%.

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