Technical specification of NetSystem 4: Difference between revisions

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Revision as of 09:53, 22 September 2015

Product NetSystem 4
Type of article PRODUCT INFORMATION
Source for translation NS 4.7


System-hardware requirements

  • operating system MS Windows 8, Windows 7, Vista, XP
  • 2 GHz dual core processor
  • 2 GB RAM for Win XP or 3 GB RAM for Win8, Win7 or Vista
  • minimum screen resolution 1280x1024
  • Microsoft.NET Framework 4 is required
  • Internet access for activation and updating of the software and directories is recommended
  • installation and later usage with the same user righs is recommended

List of standards and methods used for sizing and calculations

Net-san

Gravity sewerage

  1. Stream of stormwater (Qd):
    • PN EN 752-4 Standard
    • Karl and Klauss R. Imhoff: Urban Drainage and Wastewater Disposal.
  2. Hydraulic calculations of partly filled pipes (Qs, Qd):
    • flow calculation due to Bretting’s formula.
    • pressure drop calculation due to Prandtl-Colebrook formula.
  3. Self-defecation:
    • due to the method of boundary shear stress.
  4. Pipe diameter sizing:
    • considering sum of streams (Qs and Qd) and fill ratio.
  5. Network arrangement:
    • authorized method which meets required minimum and maximum depth gradient and collisions with other networks.
  6. Local friction:
    • considering roughness of pipes taken from catalogue data or from ATV-DVWK A110P standard.

Pressure sewerage

  1. Pumping stations:
    • based on: Karl and Klauss R. Imhoff: Urban Drainage and Wastewater Disposal and authorised method.
  2. Hydraulic calculations of completely filled pipes:
    • due to Colebrooke-White’s formula, Qs and Qd values are directly added up.
  3. Pipe diameter sizing:
    • considering the maximum speed (Vmax) and the maximum unconsolidated frictional resistance (Rmax) values.
  4. Network arrangement:
    • authorized algorithm considering the boundary conditions (min/max cover and declines), and collisions.
  5. Local friction:
    • not considered.

Water pipeline

  1. Calculations of pipes completely filled:
    • due to Colebrooke-White’s formula.
  2. Pipe diameter sizing:
    • considering the maximum speed (Vmax) and the maximum unconsolidated frictional resistance (Rmax) values.
  3. Network arrangement:
    • authorized algorithm considering the boundary conditions (min/max cover and declines), and collisions.
  4. Local friction:
    • enabled by the ability of declaring dzeta value for water pipe network junction.
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