PAT system economic analysis

Abstract

PATs are a viable and low-cost solution suitable for implementation in water networks. The basic economic parameters, the time value of money, methods of economic evaluation and the effects of the lifetime cycle are presented. The determination of analytical formulas to predict the PAT purchase price is shown. The installation of a PAT as a replacement of or complement to a pressure reducing valve is presented in order to assess the producible energy and minimize the plant economic payback time. The reader will be supplied with the theoretical basis of the economic parameters used to estimate the cost of a PAT, together with methods for economic evaluation and a definition of the best economic solution.