2006-07-11 00:36:57 · 4 answers · asked by mahlakhani 1 in Science & Mathematics ➔ Engineering
You do need to give more information. We will need the viscosity and density of the liquid (for the reynolds number calculations) and we will need the roughness of the pipe to get the friction factor.
See the formulas used at:
http://www.efunda.com/formulae/fluids/calc_pipe_friction.cfm
2006-07-11 05:45:53 · answer #1 · answered by Engineering_rules 2 · 0⤊ 0⤋
If this a liquid line, 7m/sec is at the higher end and erosion is the most likely chance. Further, 6.8bar may not be sufficient to take care of the associated pressure drop for pipe sizes below 125mm and for a surface roughness of 0.01mm.
You can try various combinations using this free and downloadable pressure drop calculator,
http://www.xs4all.nl/%7Ekostermw/dP/
2006-07-11 18:06:16 · answer #2 · answered by absolutezero 2 · 0⤊ 0⤋
Need more data to solve this, but here are some formulas that might help if you have the additional data:
Head=(.00259*(gpm squared))/inside daimeter of pipe cubed
Head=(psi*2.31)/specific gravity
These are all in US units.
2006-07-11 03:28:54 · answer #3 · answered by Jeffrey S 6 · 0⤊ 0⤋
A harmful SOPHISTICATION!
2006-07-11 00:42:31 · answer #4 · answered by Anonymous · 0⤊ 0⤋