理想斯特林热机循环原理及其效率的计算和实际工作效率的简单讨论  

A DISCUSSION ABOUT THE IDEAL STERLING CYCLE'S PRINCIPLE OF OPERATION AND FACTORS THAT INFLUENCE THE EFFICIENCY OF A REAL STERLING CYCLE

作　　者：周雨青[1] 

机构地区：[1]东南大学物理系,江苏南京211189

出　　处：《物理与工程》2015年第1期49-52,共4页Physics and Engineering

摘　　要：本文首先从热机效率的基本公式出发,阐述理想斯特林热机的工作原理,从中看到斯特林热机独特的工程设计对效率计算的影响,使其效率达到理想卡诺循环效率;其次给出实际斯特林热机工作时的热损耗的来源分析;最后结合有关论文的结论,给出工质为范德瓦耳斯气体时的效率与体积比的关联.In this article, I explain the ideal Sterling cycle＇s principle of operation by calculat- ing its efficiency. From it, one can see clearly how the efficiency is influenced by the unique engineering designs of the Sterling engine and how to make it reach the efficiency of the ideal Carnot cycle. In addition, I analyze the possible sources of hysteresis losses for a real Sterling engine. Finally, I show the connection between the efficiency and the compression ratio when the working substance is a van der Waals gas.

关 键 词：热效率 理想斯特林循环 回热器 热损 范德瓦耳斯 体积比 

分 类 号：O551-4[理学—热学与物质分子运动论] G642[理学—物理]