(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

The picture is what the prof. gave us. It isn't the most understandable but I will try my best to describe what's going on.

As the picture shows it is a top view of the layout. The big blob on the left is a large reservoir where elevation is not needed. v, v1, v2, v3 are all valves. The piping splits off into three houses (this is where the picture is confusing). At the end of the pipe near the valve, it bends 90° up to the top of the house where it empties and I'm going to assume the valves are at the top.

1) We are to design the pump power and D1, D2, and D3 while all valves are open.

2) For the designed system, what would be:

- Q1 if v2 and v3 are closed?

- Q2 if v1 and v3 are closed?

- Q3 if v1 and v2 are closed?

Givens:

Q=4.5 [m^3/hr] This is not the flow rate in the feed pipe

diameter of feed pipe is .2 [m]

I chose commercial steel as my material so ε=.046 [mm]

We are to make assumptions for minor losses.

2. Relevant equations

He gave us an equation to use for the pump power. Power=Q(p2-p1) where p2 is the pressure at the end of the pump and p1 is at the beginning.

3. The attempt at a solution

Honestly, I have no idea where to start. That's why I came here so that maybe if I could get a starting point, I could figure the rest out.

I'm thinking the first thing I would do is find the pressures at the pump to find the power, then I could find the flow rate in the feed pipe. But, I am running into a lot of unknown variables.

I appreciate any and all help. Thanks

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# Fluids design problem - piping layout

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