传热对空气标准Diesel循环功和效率特性的影响

Heat Transfer Effect on the Net Work Versus Efficiency Characteristics for the Air-standard Diesel Cycles

用有限时间热力学方法分析空气标准Diesel循环的性能．导出考虑传热效应下循环的功及效率与压比的关系，并得出功与效率的关系和最大功输出时的效率．给出了较为详尽的数值计算结果，它们对实际Diesel机性能的评估及改进有一定的指导意义．

The performance analysis was performed for the airstandard faesel cycle using metheds of finite time thermedynamics. The relations between net work, efficiency Bnd compression ratio and the mexmium net work and the corresponding efficiency bound were derived for the cycle with heat transfer consideratious. Detail numerical examples were given. The results obtained herein provided a significant guidance to the performance evaluation and improvement for practice Diesel engines