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.
I want to know based on flow and pressure how to calculate diameter of the pipe
yes
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.
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.
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.
A fire hydrant system consists of a network of pipes. Hydraulic calculations allow one to predict the flow and pressure at any particular point. Alternatively, it is a method of calculation to optimize the system by changing the pipe size or flow or pressure so that desired pressure or flow can be achieved at a particular point. Avijit Roy, Kolkata, India
To calculate air velocity in a pipe, you would need to measure either the volumetric flow rate or the mass flow rate of air flowing through the pipe. You can then use the formula: air velocity = volumetric flow rate / cross-sectional area of the pipe, or air velocity = mass flow rate / (density of air * cross-sectional area of the pipe).
The velocity of flow in any pipe is determined by three things. The internal pipe diameter, the mass flow rate of the liquid and the fluid density.
The primary element creates a pressure drop across the flow meter by introducing a restriction in the pipe, and this engineered restriction enables Bernoulli's equation to be used for a flow rate calculation.
Mass air flow sensor is located in the intake pipe connecting the air filter box with the throttle body.
With the information available, your question is unanswerable. The length of pipe,number and type of fittings and material( interior surface finish) must be known before the calculation can be made.Go to http://www.efunda.com/formulae/fluids/calc_pipe_friction.cfm and fill in all the blanks and the calculation will be made for you>
To measure the flow rate of powder in a vertical pipe, you can use equipment such as a gravimetric feeder or a powder flow meter. These devices can measure the mass of powder passing through the pipe per unit of time. Alternatively, you can also calculate the flow rate by measuring the time it takes for a known volume of powder to pass through a specific point in the pipe.
The flow-line of a pipe is the bottom inside portion of the pipe. Flow-lines are generally reffered to when establishing the elevation of the pipe work.
The flow-line of a pipe is the bottom inside portion of the pipe. Flow-lines are generally reffered to when establishing the elevation of the pipe work.
of course liquid can flow through a pipe?
I can not provide an estimate. In calculation of flow out of a pipe, more information would be needed. Since you have asked this under the category of the oil spill, I assume you are asking what is the flow of oil out a vertical pipe, if the pressure at the bottom is 40,000 psi, and the diameter is 21". You need to specify the length of the pipe and all properties of the fluid. Since you are asking this in relation to the BP oil spill, gas will come out of solution as the oil is coming to the surface (or sea floor) making the calculations far from simple. There are a number of commercial pipe flow simulators. Again, for the BP spill, a team of scientists and engineers are using pipe flow simulation , if possible, and other methods to estimate the flow.
on the black pipe leading to the air box its square and clipped