Abstract

A new method for calculating the operational efficiency of a pumping station has been developed based on the integral principle and operation rules of the pump flow rate. To determine the energy saving space of a pumping system and to reflect the relationship between supply and demand, a new method for evaluating the energy consumption rate of a pump system has been developed based on the principle of an inverter-controlled water supply with varying pressures. These methods have been applied to a pump station with an apparently efficient operation. By evaluating energy consumption based on actual demand, we developed a new strategy that configures a single frequency converter with a small transitional pump and decreases the energy consumption by almost 14% with a payback time of less than three years.

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