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EES_Solution_Matching_pump_to_piping_system

# EES_Solution_Matching_pump_to_piping_system - Finally...

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EES Solution for Example Problem – Matching a Pump to a Piping System Here is exactly what I typed into the main “Equations Window” of EES:

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Here is what the Formatted Equations window looks like (much “cleaner” looking equations – and easier to spot typo errors):
Here is what the “Options-Variable Info” chart looks like: Note: I had to change some of the initial guesses and some of the lower and upper limits in order for EES to converge on a solution. This takes some trial and error. I also had to manually insert some of the units. It seems that EES is not smart enough to calculate the units on its own.

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Unformatted text preview: Finally, Calculate and Solve yields the solution, as shown in the Solution window: This is our final answer for volume flow rate in units of liters per minute. Notice that the system head matches the supply head at the converged value of volume flow rate. This serves as a check that the solution indeed converged correctly. Note: It is also possible to plot with EES. Here is a plot of supply head and system head as functions of volume flow rate. As you can see, they intersect at the operating point, which is around 10.8 Lpm....
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EES_Solution_Matching_pump_to_piping_system - Finally...

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