Energy efficiency of a hydraulic system with the centrifugal pump

Centrifugal pumps are provided with significant opportunities in increasing the energy efficiency. Performance characteristics are playing an important role in their design and operation. Along with the efficiency coefficient, the specific energy consumption indicator equal to the mechanical in pumping the liqud unit volume is successfully used in assessing the pumps. The paper cosiders various aspects of the flow rate efficiency dependence influence on assesing the hudraulic system energy efficiency with a centrifugal pump. Specific values ??of the hydraulic system parameters are computed, and the operation points are determined. Assessing the centrifugal pump energy efficiency based on the efficiency coefficient with a pump operating in the hydraulic network is insufficient. However, the specific energy consumption indicator allows a more accurate solution to this problem. The proposed models and calculation algorithms are making it possible to select the hydraulic system options with more efficient use of the centrifugal pumps.
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