How do I calculate pump needs? Add the pumping lift andfriction losstogether. The vertical distance water needs to travel plus the friction losses from the pipe make the "total dynamic head" or TDH. This is the total pressure load the pump needs to overcome. Example: TDH = vertical distanc...
Water creates pressure or resistance, at predictable rates, so we can calculate pump head as the differential pressure that a pump has to overcome in order to raise the water. Common units are feet of head and pounds per square inch. (A pump characteristic curve calculator might offer ...
(i) Ascertain the probability distribution of independent variables' annual growth rates according to available data series. (ii) Substitute the annual growth rates of independent variables with a set of random values. (iii) Calculate independent variables' possible values and their corresponding ...