8. A 10-inch model pump delivering water at 180°F at 800gal/min and 2500 rpm begins to cavitate when the inlet pressure and velocity are 14 psia and 22 ft/s,respectively. Determine

the required NPSH for (i) the model and (ii) a prototype which is 5 times larger and runs at 1000 rpm (Hint: Watch "Chapter 12-NPSH.mp4")