IGCC系统的分析

Exergy Analyses on IGCC

应用热力学第一定律和热力学第二定律 ,通过一个具体的算例 ,给出了整体煤气化联合循环 (IGCC)系统的较为具体的火用分析方法 详细分析了系统各组成部件的火用效率与火用损率 ,给出了各处工质的较为重要的状态参数的确定方法、体现系统整体性的重要关系式和系统及其各组成部件的火用效率、火用损率的具体计算公式 对所采用的算例的计算结果进行分析说明并给出改进意见 ,从火用的角度分析讨论了各部件在系统中的地位和对系统整体效率的影响程度 。

A detailed method of exergy analyses on Integrated Gasification Combined Cycle (IGCC) is presented by applying the First Law of Thermodynamics and the Second Law of Thermodynamics in a selected case. The exergetic efficiency and exergy loss rate of IGCC system and its components are exhaustively analysed. The method of defining some important state parameters of the working fluids and some important correlations which show the integration of the system and detailed calculation formulas of the system and its components′ exergetic efficiency and exergy loss rate are also presented .The authors analyse the calculated result of the selected case and provide the ideas for improvement.The function and status of every component in IGCC is discussed in terms of exergy,which provides the way and the effective direction for the optimization of IGCC.