Sections (simulation)

The Sections (Simulation) window is a dynamic tabular overview of the sections within a specific circulation circuit.

The bidirectional link with the drawing ensures that the currently selected section is selected in the drawing and in the table at the same time. In the flow path marked in orange, the selected section is marked in blue.

  • Right-click in the table to access further sub-options.

    Show/hide columns:

    You can show and hide columns. After selecting the Show/hide columns function, the Select columns dialogue box appears. By checking or unchecking the respective boxes in the Select columns dialogue, you can manually adjust the displayed contents of the segment window.

    Load standard layout:

    If you select this option, your view is reset to the delivery status.

    Export to Excel:

    After selecting the storage location in the Save as dialogue, the displayed contents of the sections are saved in an Excel file in xlsx format.

  • If you move the mouse over the individual column headers in the table, a help text with further information on the respective column is displayed.
Table 1. Columns in the Sections (Simulation) window
Column name Explanation of the individual columns Physical unit
Medium Specifies the medium of the selected section. -
No. Specifies the segment number of the selected segment. -
l Specifies the section length. [m]
V̇ Specifies the actual volume flow in the selected section. [l/h]
k Specifies the pipe roughness in the selected section. [mm]
da Specifies the outside diameter of the pipe in the selected section. [mm]
sR Specifies the wall thickness of the pipe in the selected section. [mm]
di Specifies the inside diameter of the pipe in the selected section. [mm]
v Specifies the average Flow velocity in the selected section. [m/s]
R Specifies the pipe friction pressure gradient per metre of pipe in the selected section. [hPa/m]
l*R Specifies the total pressure loss due to pipe friction in the selected section. [hPa]
Σζ Specifies the sum of the resistance coefficients in the selected section. -
Z Specifies the pressure loss of the moulded parts in the selected section. [hPa]
l*R+Z Specifies the total pressure loss from the pressure losses due to pipe friction and the fittings in the selected section. [hPa]
ΔpApp Specifies the total pressure loss of all equipment in the selected section. [hPa]
ΔpTh. Ventile Specifies the total pressure losses of all thermostatic control valves in the selected section. [hPa]
ΔpVentile Specifies the total pressure loss of all static control valves in the selected section. [hPa]
Δp Specifies the total pressure loss in the selected section. [hPa]
sD Specifies the insulation layer thickness in the selected section. [mm]
λD Specifies the thermal conductivity of the insulation in the selected section. [W/m*K]
λR Specifies the thermal conductivity of the pipe in the selected section. [W/m*K]
D Specifies the outer diameter of the insulated pipe in the selected section. [mm]
ϑW Specifies the medium temperature in the selected section. °C
ϑL Specifies the ambient temperature of the selected section. °C
Δϑ Specifies the temperature difference between the medium and the ambient temperature in the selected section. K
Q̇W Specifies the heat loss per metre of pipe in the selected section. W
ΔϑTS Specifies the temperature difference due to the temperature drop in the selected section. K
ϑPWH Specifies the output temperature in the selected section. °C