A cooling water pump is operating at a speed of 1800 rpm. Its flow rate is 400 gpm at a head of 48 ft. The power of the pump is 45 kW. Determine the pump flow rate, head, and power requirements if the pump speed is increased to 3600 rpm.
1. The effect of the number and size of coolant holes on the coolant pressure, flow rate and velocity. 2. Other things which affect the performance of a coolant system. The Relationship Between Pressure, Flow Rate, and Velocity When the voltage to the pump and inlet restriction remain constant, the flow of coolant can be compared to a garden .
If the temperature of the pumped fluid rises and the flow rate through the pump decreases, minimumflow recirculation can be used (see MinimumFlow Recirculation Valve in this page). The manufacturer generally provides the minimum continuous required flow rate for any pump selection.
Analysis of the relationship between the volumetric flow rate ( ) that a centrifugal ˙V pump can maintain and the pressure differential across the pump (DPpump) is based on various physical characteristics of the pump and the system fluid.