褐煤预干燥发电系统热经济性计算方法探讨

Discussion on Thermal Economy Calculation Methods of a Pre-dried Lignite-fired Power Generation System

对采用褐煤预干燥方案的电厂进行热经济性计算时容易产生疏漏的地方进行了分析和说明,提出褐煤预干燥过程中消耗的能量主要转移到了干燥煤的热值中,并引入燃料提质因子,得出修正的电厂综合热效率计算式。

An analysis was conducted on the aspects easy to be neglected in the calculation of thermal efficiency for power plants using lignite pre-drying technology, pointing out that the energy consumed in the lignite pre-drying process is mainly transferred into corrected formula was derived for calculation of the new concept of fuel upgrading factor. heating value of the dried coal. On above basis, a comprehensive thermal efficiency by introducing the