第一步,首先来推广一下,卡诺循环的结果。
So the first step to doing that is I want to just generalize our results so far for a Carnot cycle.
我们具体地指定一个卡诺循环，这是理想气体。
And now we're going to specify, we're going to do a Carnot cycle for an ideal gas.
任何不可逆过程中，效率是小于的卡诺循环。
For any irreversible process, the efficiency is less than that of the Carnot cycle.
概述了热容量为常量的理想气体的卡诺循环效率。
This paper Outlines Carnot cycle efficiency of ideal gas whose heat capacity is a constant.
研究了两种线性与非线性传热条件下的不可逆卡诺循环。
This paper studies the irreversible Carnot cycles under the condition of linear and nonlinear heat transfer.
它的循环过程，叫做卡诺循环，过程如下：，这是个压强体积系统。
And the cycle it's going to undertake is called a Carnot cycle, and it works the following way: we're going to do pressure volume work.
结果表明与内可逆卡诺循环有相同吸、放热时间的不可逆卡诺循环的优化关系最佳；
The result explained that the favourable relation of irreversible Carnot cycle which has as time of absorption heat and rejection heat as endo-reversible Carnot cycle is optimum.
如果回到卡诺循环，它是由一系列可逆过程组成，我们将它，和不可逆过程的情况相比较。
Now, if we go back to our Carnot cycle which is a set of reversible paths, it's useful to compare this to what happens in an irreversible case.
这就是说，卡诺循环是一个理想化的，因为没有真正的发动机过程是可逆的，所有真正的物理过程牵涉到一些熵的增加。
This means that the carnot cycle is an idealization since no real engine processes are reversible and all real physical processes involve some increase in entropy.
数值计算显示，当布雷顿循环的工质热容率为高、 低温侧换热器的热导率总量的1．5倍时，布雷顿循环的功率已为卡诺循环功率的99％以上。
Numerical calculation indicates that the power output for Brayton reaches higher than 99% of that for Carnot as the factor equals to 1. 5.
数值计算显示，当布雷顿循环的工质热容率为高、 低温侧换热器的热导率总量的1．5倍时，布雷顿循环的功率已为卡诺循环功率的99％以上。
Numerical calculation indicates that the power output for Brayton reaches higher than 99% of that for Carnot as the factor equals to 1. 5.
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