## Search found 371 matches

Mon Feb 24, 2014 11:10 pm
Forum: Flow calculators and fluid flow problems
Topic: Calculate the flow rate for tube
Replies: 1
Views: 3595

### Re: Calculate the flow rate for tube

You can use pressure drop calculator and choose to calculate flow rate.
Thu Feb 13, 2014 11:32 pm
Forum: Flow calculators and fluid flow problems
Topic: water chilling
Replies: 1
Views: 7121

### Re: water chilling

You can try with thermal energy calculator . Here are results that I have with your inputs: Heater/Chiler calculator 1. mass flow rate (w): w : 1.1944578 kg/s 2. volumetric flow rate (q): q : 4.3000445 m3/h 3. density (ρ): ρ : 1000.0 kg/m3 4. diameter (D): D : 60 mm 5. velocity (V): V : 0.422453 m/s...
Thu Jan 30, 2014 12:36 am
Forum: Flow calculators and fluid flow problems
Topic: Biogas Flow in PE80 Pipe
Replies: 1
Views: 3642

### Re: Biogas Flow in PE80 Pipe

If K is changing also expansion Y is changing. If you have higher local resistance and K is higher, fluid will expand more.
Tue Nov 12, 2013 10:39 pm
Forum: Flow calculators and fluid flow problems
Topic: Gravity feed to bottom of a lake (very much a newbie)
Replies: 1
Views: 3328

### Re: Gravity feed to bottom of a lake (very much a newbie)

Power of pump can be calculated as P = Q * (p1 - p2). Pressure drop is due to friction, local resistances and change in elevation between start and end of pipe. So, if you calculate pressure drop in pipe (p1 - p2) for some flow rate, you can also calculate power of pump for that flow rate. And that ...
Sat Nov 09, 2013 9:13 pm
Forum: Flow calculators and fluid flow problems
Topic: Orifice plate with pipe taps
Replies: 1
Views: 3180

### Re: Orifice plate with pipe taps

What do you mean by pipe taps?
You have corner taps as selection also - if plate is between flanges and taps are on flanges itself.
Thu Nov 07, 2013 11:03 pm
Forum: Flow calculators and fluid flow problems
Topic: Gravity feed to bottom of a lake (very much a newbie)
Replies: 1
Views: 3328

### Re: Gravity feed to bottom of a lake (very much a newbie)

Flow rate through pipe is established based on the energy (mainly pressure) difference from start to the end of pipe. If you have bigger pressure difference flow rate will be higher. If you have same pressure difference flow will be higher when resistances are lower. When you have the end of pipe un...
Tue Oct 08, 2013 9:09 pm
Forum: Flow calculators and fluid flow problems
Topic: Elevated tank and piping calculation
Replies: 6
Views: 13452

### Re: Elevated tank and piping calculation

You can use calculator for change in elevation, but you have to enter that like pressure difference - like elevation difference of 10 m with water in pipe is pressure difference of 10 mWS. Flow regime is laminar or turbulent depending on the flow itself. You do not need to worry about it. Calculator...
Wed Oct 02, 2013 10:00 pm
Forum: Flow calculators and fluid flow problems
Topic: Sudden expansion in duct
Replies: 2
Views: 5135

### Re: Sudden expansion in duct

Here is what I have with pressure drop calculator just for sudden expansion: 1. volume flow rate (q): q : 0.75 m3/s 3. pipe length (L): L : 1 mm 4. pipe diameter (D): D : 120 mm 5. pipe roughness (kr): kr : 0.1 mm 6. density (ρ): ρ : 1.293 kg/m3 7. kinematic viscosity (ν): ν : 17.3 mm2/s 8. dynamic ...
Tue Sep 10, 2013 8:40 pm
Forum: Flow calculators and fluid flow problems
Topic: Natural Gas Pipework, pressure drop
Replies: 1
Views: 3595

### Re: Natural Gas Pipework, pressure drop

I am not sure that I understand you correctly. You have 100 m long gas pipe line 4" and 4" governor before the burner? The governor has 1.2 bar inlet pressure when burner is off? The governor lets 400 mbar with burner off? When burner starts, pressure goes down to 200 mbar after the governor and 700...
Tue Aug 06, 2013 10:23 pm
Forum: Flow calculators and fluid flow problems
Topic: effect of pump speed change at far end of pipe
Replies: 1
Views: 2725

### Re: effect of pump speed change at far end of pipe

You can't have two flow rates in one pipe with incompressible fluid like water, so with pump flow dropping from 50 to 40, pipe flow rate will change as well with speed of sound from point a to point b.