1. Engineering
2. Chemical Engineering
3. Process Engineering
4. 147696

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Please see the attached file for the fully formatted problem(s).

Please see the attached file for the fully formatted problem(s).

> 1200 gallons/min of water flows into approach piping that is tapered in design ----- 1000 gallons/min enters a stilling well while 200 gallons per minute recirculates back to a tank:

Question: How do you determine the inlet velocity and flow from the approach piping to the stilling well?

> The stilling well has a weir so that the water enters the first chamber of the stilling well, then overflows the weir to the 2nd chamber

>Then the water enters the inlet to a diffuser tube bank which consists of 36 4" round diffuser tubes that are 18" long ---- there are 3 rows stacked on top of each other (12 diffuser tubes per row)

Question:

How do you determine what the inlet and outlet velocity and flow is at each of the 36 diffuser tubes?

> Then from the diffuser tube bank, the water flows into a semi-enclosed channel with progressively smaller and smaller dimension until the water exits the small opening of this "sheet flow" channel and fills a 4 ft. x 4 ft x 2 ft high tank below it

Question:

How would you determine the velocity and flow at the discharge slice or opening of this channel??

How long will it take to fill the 4ft x 4 ft x 2 ft high tank below this opening once you know the velocity and flow from the channel opening??

I have provided a fairly detailed sketch of the problem on the attached Excel file --- there are 2 x-section views of the theoretical equipment and a plan view.

Please explain the flow and velocity calculations as clearly as possible at all stages to this problem!