So you’re looking for ways to optimize your flow measurement performance?  The first, most important step is to ensure that you have the best flow possible.  Perfect flow measurement wants an ideal state of flow; this means a fully developed flow profile and little to no swirl.

This normally doesn’t exist in most applications.  Upstream fittings such as tees, elbows, valves, headers, reducers, all distort the flow in some way, creating asymmetrical flow profiles and swirl.

The truth is, the key to getting accurate results is easier than you think. It’s just a matter of having comprehensive data from a good variety of flow measurement applications.

If you have enough straight pipe, roughly 200 – 300 pipe diameters, this will help to eliminate these distortions.  The pipe wall friction will slowly restore our state of fully developed flow, but depending on the fluid Reynolds number, this may result in a unrealistic length of straight pipe.

But CPA has an even better trick:

 

Flow conditioners.

CPA’s flow conditioners are devices with over 30 years of testing and product R&D behind them.

We invest in gathering data to design and produce the most dependable flow conditioners to help maximize measurement accuracy.

 

Design isn’t just how it looks, but how it performs

Our flow conditioners are designed from the ground up based on the fundamentals of fluid dynamics and compatibility with many different product applications.  They are not designed with any specific meter type in mind.  Different types of flow meters can respond differently to varying installation effects. So it’s possible that an improvement in accuracy can occur in one specific installation, and yet a severe error could result in another.

We study flow profile restoration and swirl elimination across various piping scenarios while considering Reynolds Number performance and pressure drop.  This gives us a in-depth understanding in how the flow conditioners behave across the entire range of fluid applications we may see in our industry; natural gas, air, oxygen, hydrogen, water, crude oil, LPG, RNG, plus any other single phase, homogenous fluids that you can think of.  If it needs to be measured, it probably should be flow conditioned.

We offer flow conditioners with a range of potential pressure drops.  Some applications with higher viscosity fluids or less severe installation effects need less flow conditioning, so a device with a lower pressure drop will be suitable.  In many other applications, it is require to restore the fully developed flow profile as quickly as possible, so a higher pressure drop is needed.

 

Roll out independent testing and CFD simulations

For many meter types, we know that a fully developed flow with minimal to no swirl produces the best meter performance.

We’ve benchmarked our R&D prototypes against this ideal flow through intensive testing at various calibration labs as well as comprehensive computational fluid dynamics (CFD) models & simulations.  Running our products through thousands of hours of CFD simulations has allowed us to study a huge range of variables, from different velocity components, pressure and temperature, turbulence, different fluid types and compositions, flow profiles and swirl.

In some cases, piping configurations are too complicated and expensive to test in real life, but CFD makes it possible for us to try them out.  Studying these cases improves our understanding of severe applications in and helps us be able to advise customers on how to achieve accurate measurement in even the most demanding of piping conditions.

 

Get data-driven, airtight results 

Our team combines engineering experience with fluid dynamics expertise and CFD capability to provide winning solutions that help improve your measurement. Call us today for precise measurement results you can repeat year over year.