Great video. Have been searching for this! Thanks

Very informative.. Thanks

Thank you

Please keep making these videos

Hello sir. Where did you get the recommended gas velocity? does this apply to compressed air too?

its a saver thanks

battling with how you got 0.01184 for 1/2'' NPS Schedule 160 and 0.0207 for 1''

For 3/4 NPS SCH160 , Gas velocity is 24 m/s. Therefore pipe size is also recommended.

@zayedaljabri5454

2 жыл бұрын

What is the inner diameter ?

may i know how to get 120 Nm3/hr in velocity of gas ? or it is assumption ?

What is 0.1 in formula, Also What is 273.15 in denominator?

Hello, great video but why use the minimum operating pressure?

Recommended velocity less than 25 m/s? How the value is taken?

Thanks very much. What about natural gas with mixture component c1, c2, c4, c5, h2s..@ high pressure for example 15~24 bar

@SimpleScience

2 жыл бұрын

You can use same method

Gas velocity ~ 16, 3/4" is also recommended for this application

@praveenmanogaran5677

27 күн бұрын

i got this value too, i got 15.47 m/s

How to calculate velocity of a power plant chimny by stack kit

What about gas compressible factor

What mean of cubeak gas line

Thank you so much. But where does 273.15 and 0.1 came from?

@LeeeJim

2 жыл бұрын

I just found 273.15 is absolute zero. What about 0.1 value sir?

@kbskbskbskbskbskbs

2 жыл бұрын

@@LeeeJim it is related to the pressure. The original formula for normal volume flow rate and actual volume flow rate is (normal means at 273.15 kelvin and approx 100 000 pascal): Q = Q0 * (Z * T * p0) / ( Z0 * T0 * p) Z and Z: are compressibility and normal compressibility, not considered in this video The 0.1 in the formula (in the video) is due to p being in MPa and to p0 not being explicitly included in the formula.

@joergdyckerhoff471

Жыл бұрын

@@LeeeJim 1 atm. From combined gas law.

Why does "in general" the gas velocity should be under 40 m/s? Laminar/turbulent flow? It is very far from the speed of sound that might cause any sort of undesirable effects

@bipl8989

10 ай бұрын

Noise and pipe erosion. Pressure drop is also usually too much. Actually for a more optimum economy for long distances, 20 to 30m/s is even better.

please what is the name of the actual flow rate equation

@joergdyckerhoff471

Жыл бұрын

Combined gas law

may i know which reference these formulas came from?

@Imsama123

2 жыл бұрын

what is 3600 and 0.1 in the formula?

@adityaram7493

2 жыл бұрын

@@Imsama123 hour unit was converted into seconds = 1 hour = 3600 seconds

@kbskbskbskbskbskbs

2 жыл бұрын

@@Imsama123 0.1 is related to the pressure. The original formula for normal volume flow rate and actual volume flow rate is (normal means at 273.15 kelvin and approx 100 000 pascal): Q = Q0 * (Z * T * p0) / ( Z0 * T0 * p) Z and Z: are compressibility and normal compressibility, not considered in this video The 0.1 in the formula (in the video) is due to p being in MPa and to p0 not being explicitly included in the formula.

For 3/4" line size Velocity = 23.09m/s

How to calculate inner dia

@SimpleScience

2 жыл бұрын

You can Google it.. Or use pipe data app from playstore

273.15 ? why the value came

@adityaram7493

2 жыл бұрын

temperature is in kelvin unit

23.13 m/s

Gas velocity =23.13 m/s