摘要
根据物理学原理对单缸单活塞空气热机的工作过程给出了一种物理解释.即:本实验所涉及热机的气缸中工质的状态参量要用3组pVT来表示(气缸工质分为3段),尽管3段空气柱的压强p始终保持相等,但3段空气柱的V、T并不保持相等.在单一活塞运动时,局部空气柱状态参量的变化具有热机效应,部分吸热被转化为对外做功,完成了热机循环.
According to the principle of physics, we give a physical interpretation to the work- ing process of the single cylinder single piston air heat engine. Because the working substance in cylinder is divided into three sections, the state parameters of working substance in air cyl- inder in our experiment are described by three groups of p, V, T. Although the air pressure p in three sections always maintain equal, V and T of the three air columns are not. Under the movement of single piston, the changes of the state parameters of local air column have the heat engine effects. Part of the heat is converted into the mechanical work, and a heat engine cycle is completed.
出处
《物理与工程》
2015年第1期53-54,58,共3页
Physics and Engineering
关键词
热机
热机循环
heat engine
heat engine cycle
