不可逆Dual循环的功率效率特性  

The Power and Efficiency Characteristics for Irreversible Dual Cycles

作　　者：郑彤[1] 陈林根[1] 孙丰瑞[1] 

机构地区：[1]海军工程大学三系,湖北武汉430033

出　　处：《内燃机学报》2002年第5期408-412,共5页Transactions of Csice

基　　金：国家重点基础研究发展规划资助 (973)项目 (G2 0 0 0 0 2 630 1 )

摘　　要：用有限时间热力学的方法考虑空气标准 Dual循环 ,导出了存在摩擦及传热损失的空气标准 Dual循环的功率与压缩比、效率与压缩比以及功率和效率的最佳特性关系 ,同时由数值计算分析了摩擦和传热对循环性能的影响特点。The performance of an air standard Dual cycle with heat transfer loss and friction-like term loss is analyzed by using finite-time thermodynamics.The relations between the power output and the compression ratio and between the thermal efficiency and the compression ratio,and the optimal relation between work output and the efficency of the cycle are derived.Moreover,analysis and optimization of the model have been carried out in order to investigate the effect of heat transfer and global losses lumped in a friction like term on the performance of the cycle by detailed numerical examples.

关 键 词：不可逆 Dual循环 功率 效率 有限时间热力学 性能优化 内燃机 摩擦 传热损失 

分 类 号：TK402[动力工程及工程热物理—动力机械及工程]