【摘要】 本文首先以某一水泥生产线余热回收端的余热发电机组为算例,合理简化其热力学模型,编程模拟该机组的热力发电过程;然后,利用变尺度优化法对其独立参数优化取优。结果表明,在一定范围内,主蒸汽压力和闪蒸器工作压力都存在一个使余热发电机组性能(回收利用率)最大化的最优值,而且优化后的组合参数能使得机组的发电性能得到进一步提高。更多还原

【Abstract】 The thesis takes the waste heat generating unit in a cement plant as an simulation example and simplifies the thermodynamic model of waste heat generating unit,then optimizes two independent parameters by the variable scale optimization method.The results show that the main steam pressure and flash steam pressure have the optimal value within a certain range,which can make the electricity generating performance maximized.In addition,the optimized parameter group can make the electricity generating performance of the unit(recovery efficiency of exergy) further improved.更多还原