By, AEC Technical Consultant at SolidCAD
• BIM 360 Design is the re-branded C4R
• Open Dialog Enhancement to show version of the Revit file
• Publish Settings Dialog changed
• Multi-Screen Support & Tabbed Views
• Graphic Filters – added “or” variable in the view filters
• Levels in 3D
• Uncropped perspective views
• Double fill for complex graphical rendering
• Split Railing
• New Steel Design Tools
• Dimensions for Curved Objects
• Vertical Text Alignment in annotation tab
• Hydraulic system loops separation
• Parallel Pumps Sets (Duty/Standby)
• Analytical connection
The main improvement for mechanical engineering is in flow and pressure drop calculations for hydronic piping networks in hydraulic system loops and Parallel Pumps Sets (Duty/Standby). With this new version of Revit, complex networks can be separated into primary/ secondary loops using the Hydraulic Separation feature. In this post we will take a look at how this hydraulic system separation feature works, how to enable visibility and how to set up parallel pump sets for these calculations.
Hydraulic Separation for Hydronic Piping Systems (Primary/Secondary)
Hydraulic Separation is a continuation of the improvements added for closed-loop hydronic networks. The pressure drop is calculated independently for each loop. The “Add Separation” Button and the Loop Boundary parameter has been added to pipes assigned to hydronic systems. This is the read-only parameter and was added to the pipe parameters to indicate whether it is a boundary for the loop.
In the process of design, you need to configure primary/ secondary loops and understand where to input data when defining the piping system. This is an important step because without it, separation of primary and secondary loops will not work. However, when designed properly, Revit can calculate flow and pressure drops in the network.
In order to take advantage of this new separation feature, you need to configure your system as a real working system. Also, you must check the “Enable analysis for a closed loop hydronic piping network” property in the Mechanical Setting dialogue to enable this feature. By default, Revit will calculate the pressure drop using the Colebrook Equation. However, the Haaland Equation is also an option if selected in the drop-down menu in the Pressure Drop tab.