摘要
考虑实际能量转换耦合系统中的热漏损失、非理想回热、传热的不可逆性和循环中的内不可逆性,建立一类能量转换耦合系统的较一般模型。分析系统中各主要不可逆性对系统的效率和输出功率的综合影响,计算系统的最大效率和最大输出功率及所对应的性能参数,揭示系统的优化特性。特别是对一些有意义的特殊情况做了详细讨论,直接导出Bejan和Peterson所建立的能量转换耦合系统模型的重要结论,并将有关结果推广应用于太阳能驱动热机系统。
The heat leak loss, non-perfect regeneration, irreversibility of heat transfer and endo-irreversibility of the cycle existing in real energy conversion combined systems were considered and a general model of one kind energy conversion combnined systems was established. The synthetic influence of the main irreversibilities on the efficiency and power out- put of the systems was analyzed. The maximum efficiency and power output and the corresponding parameters were calculated. The optimal characteristics of the systems were revealed. Some significant special cases were discussed in detail. The important conclusions in the models of energy conversion combined systems established by Began and Peterson were directly derived. Some relevant results obtained were generalized to apply to solar-driven heat engine systems.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2008年第5期603-607,共5页
Acta Energiae Solaris Sinica
关键词
能量转换耦合系统
不可逆损失
性能参数
优化分析
energy conversion combined system
irreversible loss
performance parameter
optimum analysis
