After cleaning the suction line of the pump unit (l = (

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After cleaning the suction line of the pump unit (l = (10 0.01 * v) = (10 0.01 * 4) = 10.04 m, d = (300 v) = (300 4) = 304 mm, efficiency = η = 0 , 65), the coefficient of local filter resistance ξ decreased from 40 to 10, and the equivalent roughness of ke pipes decreased from 1 to 0.1 mm. Pump flow Q = 0,07m3 / s; Determine the annual energy savings from this operation. Water temperature 20 ° C.
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