FLOW RATE - 6" PIPE 3

[dracula]

A tank (60.97mtr dia) (having floating roof) need to fill with water (height of the tank 18mtr)for hydro test purpose, the NEW 6" piping routing ( please see the attachment) providing from an EXISTING FIRE LINE HEADER which 88mtr long from the tank's 4" nozzle,

how to find the flow rate of the 6" new pipe?
please give me the formula with an example!

 

[BigInch]

Doing Engineering work for you is not allowed.

What would you be doing, if you knew that you could not fail?

 

[dracula]

i have done the drawing only, but i would like to prove that its okay!

 

[BigInch]

You should bring the drawing and your cheque book to your local professional engineer.

What would you be doing, if you knew that you could not fail?

 

[Latexman]

Use Bernoulli's principle with the Darcy–Weisbach equation for the head loss term.

Good luck,
Latexman

 

[dracula]

latex

hi can u pls give an example how to do it? i need ur help!

 

[dracula]

flow rate= area x velocity

velocity= how can i find the velocity here! h

 

[Latexman]

Most fluid flow textbooks have examples in them.

Good luck,
Latexman

 

[TD2K]

I would suggest buying a copy of crane

http://www.flowoffluids.com/publications/crane-tp-410.aspx

 

[cvg]

[link ]

http://search.yahoo.com/search?p=time+required+to+fill+a+tank&ei=utf-8&fr=b2ie7

[/url]

 

[Latexman]

When I received my first Crane TP-410 and thumbed through it, I told my officemate, "I wish I had bought this when I took fluids at University!" It has many, many worked examples in it.

Good luck,
Latexman

 

[racookpe1978]

Odd that you have a (new!) 6 inch pipe connecting to an (old) 4 inch nozzle.

For a hydro test - a one time occurrence - basically, it is hard to tell why you are worrying about calculating the fill rate for water. the tank will fill at about the same rate as the tank will when it is filled with your production fluid.

Unless it is a homework question. 8<)

Because, you see, it is impossible for anybody - including your professor/teacher - to calculate the fill rate (at the bottom, the middle, the top ????) of the tank without knowing the pressure of the water header. Note that the fill rate will depend on back pressure of the tank - which changes as the tank fills and the top of the tank becomes higher.

Oh, by the way, Is that initial pressure in the water header constant or will it change with time and with back-pressure and flow rate of the system you are filling?

 

[jmw]

By the way, help with Crane calculations is available at

http://www.Cheresources.com

They love this kind of thing there.
They also have a forum especially for those people not allowed to post here.

JMW

http://www.ViscoAnalyser.com

 

[sspeare]

Like several people have said already: buy the Crane "Flow of Fluids" book. Also, I suggest you buy the following book "Cameron Hydraulic Data." Then you can teach yourself.

 

[Latexman]

Yep, I got "bothem", and others.

Good luck,
Latexman

 

[rmw]

If I would take "bothem" out of my laptop bag, it would be lighter, but - ain't gonna happen.

rmw

 

[jmw]

Is that Ian "Beefy" Bothem?

JMW

http://www.ViscoAnalyser.com