Search found 375 matches

by admin
Sat May 22, 2010 12:49 pm
Forum: Flow calculators and fluid flow problems
Topic: Pressure in PSIA or PSIG?
Replies: 1
Views: 4292

Re: Pressure in PSIA or PSIG?

Absolute
by admin
Fri May 21, 2010 9:57 am
Forum: Flow calculators and fluid flow problems
Topic: Text Height
Replies: 3
Views: 5777

Re: Text Height

If you can explain in which calculator do you have problem, maybe I can fix it next version.
by admin
Mon Apr 19, 2010 9:27 am
Forum: Flow calculators and fluid flow problems
Topic: Request for information
Replies: 2
Views: 5336

Re: Request for information

The web site http://www.pipeflowcalculations.com at this moment doesn't offer any possibility to download any of the available calculators that you have already used. Also selling is not a option at this moment. Instead off selling calculators, I have decided to offer this service free of any charge...
by admin
Tue Apr 06, 2010 8:23 am
Forum: Flow calculators and fluid flow problems
Topic: decanting one tank into another
Replies: 2
Views: 16178

Re: decanting one tank into another

Here is how you can start: Pressure drop in pipe due to friction is: Dp=rho * f * L * V^2 / (2 * D), or (A) Dp = 8 * rho * f *L * Q^2 / (D^5 * pi^2); where is: (B) Dp = rho * g * (H - Dh); - available energy due to level difference if both reservoirs are on atmospheric pressures (Dh - is the change ...
by admin
Mon Apr 05, 2010 1:08 pm
Forum: Flow calculators and fluid flow problems
Topic: decanting one tank into another
Replies: 2
Views: 16178

Re: decanting one tank into another

This is non-steady flow problem for which differential equation should be written.
I will try to provide one later today.
by admin
Fri Apr 02, 2010 10:24 pm
Forum: Flow calculators and fluid flow problems
Topic: control valve sizing calculation
Replies: 1
Views: 4518

Re: control valve sizing calculation

The web site http://www.pipeflowcalculations.com at this moment doesn't offer any possibility to download any of the available calculators that you have already used. Also selling is not a option at this moment. Instead off selling calculators, I have decided to offer this service free of any charge...
by admin
Tue Mar 23, 2010 8:09 am
Forum: Flow calculators and fluid flow problems
Topic: how to calculate flow-rate and drop pressure on branch pipe.
Replies: 3
Views: 17721

Re: how to calculate flow-rate and drop pressure on branch pipe.

Step 1. It is similar like in loop, but you have to know (or make an assumption) the pressure (head) on the start of the branch and at the end of the branch and based on pressure (head) change from start to the end of branch you can calculate the flow. Step 2. Now that calculated flow is influencing...
by admin
Wed Mar 10, 2010 12:33 pm
Forum: Flow calculators and fluid flow problems
Topic: Newsletter - new feature - subscribe now
Replies: 0
Views: 5518

Newsletter - new feature - subscribe now

Dear pipeflowcalculations.com users,

From now on, newsletter subscription is established. Be informed on time about web site updates and calculator improvements.

Subscribe to newsletter at:

http://www.pipeflowcalculations.com/php ... =subscribe

Administrator
by admin
Tue Mar 09, 2010 7:42 am
Forum: Flow calculators and fluid flow problems
Topic: Determining Air flowrate of air pump
Replies: 3
Views: 7064

Re: Determining Air flowrate of air pump

Estimated maximum flow rate can be find if you devide motor power with pressure change. Also, energy losses should be taken into account, so flow rate is 10-20% smaller.

But if you don't know pressure, than it is difficult to know.
by admin
Mon Mar 08, 2010 9:42 pm
Forum: Flow calculators and fluid flow problems
Topic: Determining Air flowrate of air pump
Replies: 3
Views: 7064

Re: Determining Air flowrate of air pump

Do you know the pressure that is in?