本文通过对两种方法效率定义的分析讨论,从理论上指出了两种方法效率定义的联系和差别,将两种方法从理论上统一起来,对热力学方法的研究和应用具有一定的参考价值。热力学方法和传统方法确定的都是水泵的效率,尽管两者采用的方法、测定的参数不同,但两者应该是异曲同工,获得同一结果。不过,两种方法是从不同的观点出发来定义效率的,那么两种定义是否统一呢?也就是说,两种效率定义是否真正表述了同一内容,是否存在理论误差呢?这一问题不解决,就不能对两种方法有正确的认识。尽管 This article analyzes and discusses the definition of the efficiency of the two methods, and theoretically points out the connection and difference of the two methods’ efficiency definitions. The two methods are unified theoretically and have certain reference value for the research and application of thermodynamic methods. Both the thermodynamic method and the traditional method determine the efficiency of the water pump. Although the methods and parameters used in the two methods are different, the two should be of the same type and achieve the same result. However, the two methods define efficiency from different points of view. So are the two definitions unified? That is, do the two definitions of efficiency really express the same content and do they have theoretical errors? This problem is not solved. , you can not have a correct understanding of the two methods. in spite of