气体斯特林热机循环的生态学优化研究

An Ecological Optimization Criterion for a Gas Stirling Engine Cycle

本文应用了一种回热式不可逆气体斯特林热力学循环热机模型,它不仅考虑了热传导引起的不可逆性,也考虑了回热损失引起的不可逆性.并运用生态学优化准则,来优化此气体热机的性能,使其达到最佳运行模式.获得了在最大生态学函数条件下的最佳效率、输出功率和熵产生,并与在最大输出功率条件下的结果进行比较.这里所讨论获得的结果对气体斯特林热机的优化设计和合理利用能源都将有理论上的指导意义.

An irreversible model for Stirling gas regenerative engine cycle is presented in this paper, in which heat resistance and regenerative losses are considered. An ecological optimization criterion is proposed to optimize the performance of this kind of engine, so as to reach the best mode of operation at such a Stirling engine. The optimal efficiency, output power and entropy production at the maximum of an ecological function are obtained, and are compared with those results at the condition of maximum output power. The results given in this paper are of importance in the optimal design and reasonable use of energy for gas heat engine.