0
Mass flow in air can be calculated if you know the pressure drop across the pipe. Then it can be calculated using Darcy's Equation for Pressure,which is: P2-P1 = (4fLv*v)/d*2*g where, P2 & P1 are pressures at two points in pipe, f = friction factor, L= length of pipe, v = velocity of fluid, d = diameter of pipe, g = gravity. from this formula we can calculate the velocity and hence the flow rate.
Still curious? Ask our experts.
Chat with our AI personalities
Judy
Blake
CoachAdd your answer:
Earn +20 pts
Pressure 14.5psi flow will be 700gallon per day how will calculate the pipe diameter?
I want to know based on flow and pressure how to calculate diameter of the pipe
Is there such a thing as a flow directional pipe-fitting union?
yes
How does cavitation relate to diameter of a pipe?
Vapor pressure is the main factor in determining cavitation. Vapor pressure is a dependent on temperature. A pipes diameter becomes a main factor because it directly reflects the velocity of the pipe. Velocity is an important factor in determining cavitation in a pipe since it effects the velocity head for a piping system. If the velocity head is to great it could decrease the pressure inside of the pipe causing cavitation. Example: For a given pipethe flow will constant for. However the velocity in the pipe is dependent on its diameter. This is because velocity is based on the ratio of flow to area. Flow will not change but based on the diameter of the pipe it will have a different velocity. If the pipe had varying diameters the velocity will vary as well. Higher velocities will be at areas where the diameter is small and slower at areas where the diameter is larger.
What is desilting pipe?
Silt in pipes is caused by solids suspended in liquids, that are flushed through the drainage system, settling in the pipe-work. This can be caused if there is a lot of solid matter flushed through the pipe system or if the flow is too slow or has too many turns causing the flow to been restricted (which in turn allows the solid particles held within it time to fall to the low point in the pipe). De-silting is carried out through either high pressure jetting or exposing the affected pipe-work and physically cleaning out. Silting can occur in other pipe systems, as well as drains, but depends on what the plumbing system is carrying. Hard water areas (high level on degrees Clarke) may need acid descale etc.
How Do you calculate the area of pipe?
Start with the maximum flow speed (metres per second) for your liquid, then mutiply by the area of the pipe in square metres, the result is maximum volume flow rate in cubic metres per second.
