Technical specification of NetSystem 4

Product	NetSystem 4 [[{{{commercial_product4}}}]]
Type of article	{{{category_name1}}} [[{{{category3}}}|{{{category_name3}}}]]
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 during conducting the selection and calculations

Net-san

Gravity sewerage network

1. Flow stream for rainwater:
   • PN EN 752-4 Standard
   • Karl and Klauss R. Imhoff: Kanalizacja miast i oczyszczanie ścieków.
2. Hydraulic calculations of partly filled sections:
   • flow calculated due to Bretting’s formula.
   • pressure drop calculated due to Prandtl-Colebrook formula.
3. The self-defecation:
   • due to the method of boundary shear stress.
4. The network draft:
   • authorized method which meets the required minimum and maximum depth gradient and collisions with other networks.
5. Sizing the diameters:
   • basing on the summary flow and according to the fill ratio.
6. Local pressure drops:
   • is taken into accounts basing on roughness of the pipe taken from the catalogue data or on the standard ATV-DVWK A110P.

Pressure sewerage network

1. Pumping stations:
   • are based on the work: Karl and Klauss R. Imhoff: „Kanalizacja miast i oczyszczanie ścieków” and authorised methods.
2. Calculations of pipes completely filled:
   • due to Colebrooke-White’s formula.
3. Sizing diameters:
   • including the Rmin and Rmax.
4. Network draft:
   • authorized method.

Water pipeline

1. Calculations of pipes completely filled:
   • due to Colebrooke-White’s formula.
2. Sizing diamteres:
   • including the vmax and Rmax.
3. Network draft:
   • authorized method.
4. Including the local pressure drops:
   • enabled by the ability of declaring the dzeta for knickpoints.