System Engineering

At Flygt, system engineering is the science that is necessary to achieve the optimal solution to satisfy our customers’ needs. The most common example of this is sizing and selection of the right product for a given application.

 

We have over 60 years of experience in the field of water and wastewater handling, providing us with the unique know-how to provide design recommendations and solutions for our customers’ processes and applications. Our engineers utilize specially developed, as well as commercial, industry-leading software for design and development projects. Flygt also pioneered the use of computational fluid dynamics (CFD) to analyze and verify sump design in addition to physical model testing for observation of flow pattern in fluids.

 

The knowledge and experience of our engineers is combined with a broad range of standard-setting Flygt products. The result is a customized solution that ensures trouble-free operation and lower lifecycle costs.

 

Today there are thousands of pump stations operating in accordance to the Flygt standard all over the world. These have a proven track record of preventing sedimentation, clogging, floating debris and adverse hydraulics while maintaining very high system efficiency.

 
We provide system engineering services such as:
  • Head loss calculations
  • Water hammer analysis
  • Start calculations
  • Station design
  • Computational fluid dynamics

 

System design

System design is important when transporting water, wastewater and other fluids containing solids because it helps avoid solids settling and pump clogging. A badly designed system will cost more and be ineffective in energy usage. More importantly perhaps, it can also contribute to health problems for people living near and around piping networks and pump stations, as system breakdown leads to sewage leaks into the environment.

 
An important aspect of system engineering is pump station design. The main design requirement for a pump sump is that it should provide optimal inlet conditions for the pumps so that the flow being delivered to the pump is uniform, steady and without swirl or entrained air. A pump sump that is well designed will help prolong the lifetime of pumps as well as ensure high reliability due to the low risk of clogging. An incorrectly designed sump will result in poor performance and mechanical strain due to vibrations and cavitations at the inlet to the pump.
 
Water hammer can lead to pipes collapsing and ruptured valves. Flygt engineers not only have complete knowledge of their pumps, they also perform extensive physical hydraulic testing in advanced laboratories in order to have a complete understanding of fluid dynamics. By analyzing systems performance using precise methods and accurate calculations, our engineers are able to recommend and size the appropriate system protection to ensure reliable pumping. 
 
Lifecycle costs
Pumping installations are critical to achieving low lifecycle costs (LCC) in a wastewater application. Since a pump station is a highly complex system, it is important to consider every critical operating scenario during the design phase, in order to ensure reliable and cost effective pumping over time.
 
The most important factor affecting LCC is energy consumption.  Flygt system engineers have been studying the energy efficiency in pump stations for decades. Their design expertise is based on the fact that pump station efficiency depends not only on the system efficiency and the efficiency of the pumping units, but also on the prevention of adverse hydraulic phenomena as well as sedimentation, floating debris and clogging problems. 
 
Flygt’s engineering expertise and vast experience contribute to pump station designs that together with Flygt equipment aim to achieve the following: