Consider a two-pipes-in-series system: that is, Pipe 1 is followed by Pipe 2. The liquid is water

Question:

Consider a two-pipes-in-series system: that is, Pipe 1 is followed by Pipe 2. The liquid is water at room temperature with a mass flowrate of 2 kg/s. The pipes are horizontal. Calculate the pressure drop across these two pipes and the power necessary to overcome the frictional loss. Ignore the minor losses due to the pipe fitting. The pipe data are PipeL (m)Pipe Size Material 1 10 1-in, schedule-40 Commercial steel 2 15 2-in, schedule-40 Cast iron