NFPA 99 includes a detailed diagram showing the intent for placement of the different types of valve. To add clarity to the system configuration, this article takes the diagram as the base source and adds commentary on options for the main line valve. Shut-off valves, which include riser, se...
Figure 5. The gas supply scheme for residential buildings. Such gas pipelines are powered by low-pressure gas distribution points. A feature of the calculation here is that when determining pressure losses in vertical sections, it is necessary to take into account additional overpressure due to ...
In the vertical section, churn flow was observed, and the associated PDF diagram showed a single peak that was similar to the PDF associated with the annular flow at a low input water cut. However, the distribution range of the single peak was greater than that in the annular flow, ...
The air reactor, which consist of a riser, has been modeled with Aspen Plus, V11. This version of the software already has a model to implement a fluidized bed, which is available in the section “solids” with the reactor “Fluidbed”. The input parameters used to model the fluidized ...