At Nearby Engineers New York Engineers , we consider certain factors to help us calculate the overall pressure difference throughout your system. These factors include:
- Pressure loss due to elevation variations
- Friction between the pipe’s wall and the fluid
- Friction loss when fluid passes through any fitting
- Pressure gain due to the addition of fluid head
- Friction between the fluid’s adjacent layers
By calculating friction loss, we will then consider factors like the change in elevation, the addition of a pump head, and fitting losses. This way, we can be able to come up with an accurate pressure drop calculation in the pipe. We normally consider these sections:
- Calculating friction loss
We have to do a calculation of each of the items necessary for determining friction loss. With the use of advanced software, our expert engineers can calculate friction loss with the help of the Darcy-Weisbach equation which is considered the standard for calculating non-compressible fluids.
- Calculating pipe fitting loss
If your piping system has long pipes, your fitting losses will mostly be insignificant with regard to your pipe’s overall pressure drop. However, local losses like the ones from a partially open valve tend to be a major loss.
We are able to measure a specific fitting loss with the help of real-world experimental data which we analyze to determine a K factor for calculating the fitting loss. This is because it normally varies with the velocity of the fluid which passes through it.
Then again, we always use advanced software solutions that include fitting losses in our pressure drop calculations as they come with lots of industry standard K factors for valves and fittings of different types and sizes.
- Calculating pipe component loss
Various components, such as chillers or heat exchangers, should be modeled in a piping system. Some of them end up introducing a known fixed pressure loss. In most cases, however, the pressure drop would vary with the flow rate which passes through the component.
- Calculating pressure loss due to variations in elevation
Our pressure drop calculations with regard to elevation variations will depend on certain factors. If the start of the pipe has a lower elevation than its end, then there will be additional pressure loss apart from friction and other losses. This is due to the increase in elevation.
Meanwhile, if a pipe’s start is elevated higher than its end, there will be additional pressure gain due to the decrease in elevation.
After the said factors are calculated, an overall pressure drop calculation follows after. This is where we at Nearby Engineers New York Engineers enter the picture.
By availing of our pressure drop calculation services, we can assure you that the results we provide are accurate by using specific equations and advanced software designed for such task.