1、绪言水泵系统,在一切工业或城市规划中是重要的因素。近年来,由于能源价格的提高,这种最佳设计必要性的愿望越来越显示。在这里将水泵系统的最佳设计从经济观点引出。 2、数学的解析输水管的主要费用y_1(美元/呎),作为管径(吋)的有关系数用下式表示。 y_1=K_1D~(ml) ……(1) 1. Introduction Water pump systems are an important factor in all industrial or urban planning. In recent years, due to the increase in energy prices, the desire for this optimal design necessity has become increasingly apparent. The optimal design of the pump system is derived here from the economic point of view. 2. Mathematical analysis The main cost of the water delivery pipe, y_1 (US$/呎), is expressed by the following formula as the relevant coefficient of pipe diameter (吋). Y_1=K_1D~(ml)......(1)