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在这讲中,我们学习怎样计算一个过程或一个过程的任一部分的损失功和热力学效率,以及寻求改善过程热力学效率的方法。一、冷冻循环在上一讲中,我们已经作了丙烷冷冻循环(如图3.3所示)的总损失功和总热力学效率的计算。如果能够求出该循环的四个步骤中的每个步骤损失功有多大,我们就可以把精力集
In this talk, we learn how to calculate the loss of work and the thermodynamic efficiency of any part of a process or process, and how to find ways to improve the thermodynamic efficiency of the process. 1. Freezing Cycle In the previous lecture, we have calculated the total loss of work and total thermodynamic efficiency of a propane refrigeration cycle (as shown in Figure 3.3). If we were able to find out how much work lost in each of the four steps of the cycle, we could concentrate