交变流动热机的介观热力循环理论 第一部分 制冷机回热器的介观热力循环模型及分析

MESO-SCOPE THERMODYNAMIC THEORY FOR CYCLIC FLOW ENGINESPART I . MESO-SCOPE THERMODYNAMIC MODEL FOR CYCLIC FLOW REGENERATOR

提出了交变流动热机的介观热力循环理论,系统地分析交变流动热机中关键部件的热力过程。本部分将基于物理上直观的拉格朗日法,首先分析回热器内具有代表性微团的热力过程,进而阐述回热器整体在整机中的热力工作过程和功能。分析表明,回热器中的不同气体微团及相应的固体工作介质更像一个个配合精巧、工作在不同温度水平、功能完整的微型热机。对于制冷机来说,回热器内的微团通过接力作用,一步步将低温热源的热量向高温泵送,并最终排向环境温度热源。

The thermodynamic processes of key elements used in cyclic flow engines are systematically analyzed and then Meso-scope thermodynamic theory for cyclic flow engines is proposed. In part I , firstly , the thermodynamic cycles of some characteristic gas parcels are analyzed in Lagrangian 's view. Which is directly in physics, and then the thermodynamic process and function of a regenerator as a whole in an machine is described. The analysis proves that different gas parcels and solid working medias corresponding are just like some micro-engines, which work well at different temperature levels and have complete func-tons. For the regenerator of a refrigerator, all gas parcels inside the regenerator work together and cooperate elegantly to pump heat from the cold end to the hot end of the regenerator at last.