Category » Other Devices

There were 11 articles found in this category:

1. How to Model a Vacuum Breaker Using PIPE-FLO
   In a fluid transmission pipeline with changes in elevation there could be conditions in which the pressure in the piping system goes below the vapor pressure of the fluid. When this occurs, the liquid in the pipeline turns to vapor and the flow in the pipeline becomes erratic, resulting in pre ...
2. Modeling a Counter Flow Heat Exchanger in PIPE-FLO with Heat Transfer Calculations in X-Link
   PIPE-FLO does not perform heat transfer calculations, nor does it have a specific tool for modeling both sides of a heat exchanger in one device. However, a user can employ the existing PIPE-FLO tools, the component tool and the X-Link plug-in, to achieve this functionality. In the example sys ...
3. Modeling Strainers as Fixed dP Components
   A strainer is a device installed in a piping system which provides a means for mechanically removing undesired particles from a flowing fluid. Most strained particles are in the size range between 40 micron and 1 inch, and are typically removed by using a perforated, mesh, or wedge wire straini ...
4. Modeling a Centrifugal Fan, Compressor, or Blower in PIPE-FLO Professional
   When you are modeling a compressible system in PIPE-FLO Professional, it is often necessary to simulate the effects of a fan, compressor, or blower. The way to model this is to install a pump, and enter the device’s characteristic curve data in the “Pump Data” window. The f ...
5. Modeling a Sprinkler System or a System With Nozzles
   There are several ways to model a sprinkler system or a system with nozzles in PIPE-FLO. Sprinklers, fire suppression nozzles, and spray nozzles are typically characterized by a Discharge Coefficient which some nozzle manufacturers represent with the letter K, used in the following equation: T ...
6. Using the Flow Coefficient (Cv) to Characterize the Performance of a Piping System
   Fluid flow through a piping system that consists of components such as valves, fittings, heat exchangers, nozzles, filters, and pipelines will result in a loss of energy due to the friction between the fluid and internal surfaces, changes in the direction of the flow path, obstructions in the f ...
7. Modeling a Reducing Elbow
   If you need to include a reducing elbow in your PIPE-FLO model, but don’t have any K factor data, you can use a combination of a reducer and elbow. The standard table shipped with PIPE-FLO contains all of the valves and fittings found in the Crane Technical Paper No. 410. The Crane paper ...
8. Modeling an Accumulator
   Accumulators absorb hydraulic shocks and dampen pump pulsation and flow fluctuations. Typically an accumulator is a device similar to a surge tank at a given pressure. It acts like a shock absorber in a hydraulic system. For example, an accumulator may be placed on the discharge of a positive d ...
9. Calculating Resistance Coefficient K from Cv or Kv
   For control valves, the valve capacity and flow characteristics are typically expressed in terms of a valve flow coefficient (Cv). This article discusses how this flow coefficient can be used to calculate the equivalent resistance coefficient, or K value, used in the Darcy equation. The flow co ...
10. Tee Fittings
    Users often inquire about the necessity of installing both a Tee Flow Thru Branch and a Tee Flow Thru Run when modeling a Tee fitting. There are several different approaches that can be used. When modeling a Tee, install the Tee Flow Thru Branch in the branching line. With regard to installing ...
11. Modeling and Troubleshooting Fixed Flow Compressors
    Instead of entering performance curve data, you can also specify a fixed flow rate and have PIPE-FLO Compressible calculate the developed pressure. When troubleshooting fixed flow compressor installations, it is helpful to know how PIPE-FLO Compressible internally models them. A schematic of ho ...