燃气轮机与混合装置的Yong性能比较  

Exergy Behavior Comparison Between a Gas Turbine and That of a Hybrid Installation

作　　者：张会生[1] 苏明[1] 翁史烈[1] 

机构地区：[1]上海交通大学动力机械与工程教育部重点实验室，上海200030

出　　处：《动力工程》2005年第3期330-330,共1页Power Engineering

基　　金：国家自然科学基金资助项目(50176031);; 国家973计划资助项目(G1999022303)

摘　　要：燃气轮机中的燃烧反应是一种高度不可逆的过程，因此Yong效率较低。燃气轮机一燃料电池混合装置则由于绝大部分燃料通过电化学反应来释放能量，只有未完全利用的燃料参加燃烧反应。用热力学第一定律和热力学第二定律对燃气轮机和它与燃料电池构成的混合装置进行了比较分析，研究了循环的Yong效率和各部件的性能对整个系统的影响，给出了混合装置中对提高系统性能具有重要影响的部件。Combustion reactions in a gas turbine are processes of high irreversibility, and therefore of lowe exergy efficiency. But most of the fuel's energy in a gas turbine-fuel cell hybrid installation is being released through electrochemical reactions, and only a small amount of fuel left over enters into the combustion reaction. Using the first and the second law of thermodynamics, a comparison analysis between a gas turbine and a hybrid installation which combines a gas turbine with a fuel cell is being presented, and the exergy efficiency of the cycle as well as the effects of the individual components' performance on the whole system discussed, simulataneously pointing out the main components which are vital for improving the system's performance. Figs 4, tables 2 and refs 8.

关 键 词：燃气轮机 混合装置 Yong性能 燃料电池 

分 类 号：TK47[动力工程及工程热物理—动力机械及工程]