(Solved): Example 21 - Centrifugal Pump III (pumps operating in series or parallel) Referring to the pump and ...

Example 21 - Centrifugal Pump III (pumps operating in series or parallel) Referring to the pump and pipe flow systems of Example 19, it is aimed to replace the original centrifugal pump by another two identical centrifugal pumps having operation characteristics as shown in the following Table Q21 when it is running at 960 rpm : Table Q21 Operation Characteristics of Each Centrifugal Pump at 960 rpm : Evaluate the overall operation characteristics curve of the two centrifugal pumps; and hence determine the volume flow rate through the pipe by considering only the major loss when these two pumps are arranged to operate in: (i) Series; or (ii) Parallel.