Chapter 14, Problem 30P

For the centrifugal water pump of Prob. 14-29, plot the pump's performance data: H (m), bhp (W), and (percent) as functions of $\stackrel{\dot{}}{V}$ (Lpm), using symbols only (no lines). Perform linear least-squares polynomial curve fits for all three parameters, and plot the fitted curves as lines (no symbols) on the same plot. For consistency, use a first-order curve fit for H as a function of , ${\stackrel{\dot{}}{V}}^2$ use a second-order curve fit for bhp as a function of both $\stackrel{\dot{}}{V}$ and , ${\stackrel{\dot{}}{V}}^2$ and use a third-order curve fit for ${\eta }_{pump}$ as a function of $\stackrel{\dot{}}{V}$ , ${\stackrel{\dot{}}{V}}^2$ , and List all curve-fitted equations and coefficients (with units) for full credit. Calculate the BEP of the pump based on the curve-fitted expressions.