【摘要】 建立不可逆气体斯特林热机循环新模型,研究有限热源、热阻、回热损失和工质内不可逆性等对热机性能的影响,应用有限时间热力学方法,导出输出功率与效率间的优化关系解析表式,进而获得最大输出功率及其它优化性能参数。所得结论比现有文献的相关结论更为普遍,对实际斯特林热机的研制和优化设计提供新的理论指导。更多还原

【Abstract】 The new model of an irreversible gas Stirling heat engine is set up,in which the influence of finite heat capacities of external reservoirs,heat resistance,regenerative losses and the internal irreversibility inside working substances are taken into account.By using the method of finite-time thermodynamics,the optimal expression between the power output and efficiency is derived.Moreover,the maximum power output and other optimal performance parameters are obtained.The results obtained here are more general than the related conclusions presented in the literatures and can provide some theoretical guidance for the manufacture and optimal design of real Stirling heat engine.更多还原