具有空气冷却的中冷回热循环三轴燃气轮机热力学建模和性能优化  

Thermodynamic modeling and performance optimization for intercooled-regenerated cycle triple-shaft gas turbine with air cooling

作　　者：王文华[1] 陈林根[1] 孙丰瑞[1] 

机构地区：[1]海军工程大学动力工程学院,湖北武汉430033

出　　处：《热科学与技术》2012年第3期234-240,共7页Journal of Thermal Science and Technology

基　　金：国家自然科学基金资助项目(10905093);海军工程大学自然科学基金引导项目(HGDYDJJ10011)

摘　　要：建立了考虑涡轮叶片冷却和实际气体性质的中冷回热循环三轴燃气轮机模型,在给定叶片表面耐热温度的条件下通过优化总压比和中间压比分配,得到最优性能。研究表明:分别存在最佳的总压比和中间压比使得燃气轮机循环的比功率和效率达到双重最大值,双重最大比功率随中冷度的增大而增大,随回热度的增大略有减小,双重最大效率随中冷度和回热度的增大而增大。The intercooled-regenerated cycle triple-shaft gas turbine model considering the air cooling and real gas characteristics was built and its thermodynamic performance was optimized by searching the optimal total pressure ratio and intercooling pressure ratio.The results show that there exist an optimal total pressure ratio and an optimal intercooling pressure ratio which lead to an double-maximal specific power and an double-maximal efficiency of the gas turbine cycle,the double-maximal specific power increases as the effectiveness of the intercooler increases,and decreases appreciably as the effectiveness of the regenerator increases,and the double-maximal efficiency increases as the effectiveness of the intercooler and the effectiveness of the regenerator increase.

关 键 词：空气冷却 中冷回热循环 燃气轮机 性能优化 

分 类 号：TK471[动力工程及工程热物理—动力机械及工程]