1. The problem statement, all variables and given/known data A centrifugal pump has the following pressure – capacity characteristics: It is planned to use this for a process having the following system characteristic: (a) Determine the operating point for this pump with this system. (b) The actual flowrate required by the process is 50 m3 h–1. If the overall efficiency of the pump at this flowrate is 70%, determine the power consumed when the liquid being pumped has a density of 1200 kg m–3. 2. Relevant equations For Part a I think I need to plot the data given onto a graph and find where the lines intersect. Part b: Po = qv ρ g Hp where Hp is the system characteristic Hp = (Ht2 - Ht1) + hf + hm 3. The attempt at a solution (a) After graphing the data given in excel the lines intersect at a flowrate of 100 m3h-1 and a Pressure of 465 KPa (b) I haven't figured out how to calculate the system characteristic as I'm not sure where to find the initial total head and final total head. I must have misread or overlooked something in my notes on how to calculate it. I'll be reading through my notes again. Plaese let me know if I've got anything wrong that would be much appreciated thanks.