Flow Calculation

Which flow calculation?

Hello senthilkodisundaram,

There are volumes of information on this topic. What would be best is if you could provide specific information about your application:

• What is the working fluid?
• What exactly are you trying to control?
• Volumetric flow rate?
• Mass flow rate?
• Do you have a specific type of flow transmitter in mind?
• What ranges of flow are likely to be encountered?
• Do you have a system already in place, or are you designing from scratch?

The more detail, the better we can provide help.

For basics, see:

• Fluid Dynamics
• Control Valve Sizing
• PID Control

Mike

Are You working alone in Your Company ?

I have been to all of the one day seminars and three day schools that the flow meter manufacturers and control valve manufacturers offer, and, yes, I could calculate the sizing myself now. I even have the programs that Jordan and Fisher use to size valves, however, I still find it easier to go to several companies for quotes and let them size their instruments for you. Just have available the piping size, flow rate, if the flowing material is liquid, have the density, temperature, pressure, allowable pressure drop, down stream pipe size changes, downstream equipment such as a heat exchanger, and so on. I have no doubt forgot some inputs, but the companies sizing expert will ask for anything I have forgotten. They usually get back to you the same day.