Project Description

PIPENET Transient module is used all around the globe for rapid and reliable dynamic analysis of complex and simple networks.  Some of the unique features of the Transient module are hydraulic transient forces, sophisticated control systems, priming and discharge time calculation

PIPENET Transient module is used for the analysis of the following types of system

  • Firewater systems surge analysis
  • Deluge system filling time calculation
  • Elastomeric deluge valves
  • Pipelines
  • Loading/unloading systems
  • LNG bunkering systems
  • Turbine trip in power stations
  • Steam hammer in main steam line of power stations
  • Steam hammer in reheat lines of power stations
  • Cooling water systems
  • Water injection systems for reservoirs
  • Time history for use with pipe stress analysis programs

The user has wide choice of models:

Pipes –  elastic pipes, short pipes, dry pipes, pipe bundle

Pumps – simple pumps, inertial pumps, turbo pumps

Check valve – dynamic check valve, instantaneous check valve, inertial check valve, fluid damped check valve

Valves – extensive built-in valves, user defined valves, standard valves, control valves, surge relief valves, safety valves, relief valves, bursting (rupture) discs, regulators, air release/vacuum breaker valves

Tanks – Accumulators, air vessels, simple tanks, surge tanks, receiving vessels

Caissons – partially filled pump caissons, air release valves, built-in check valve

Control systems – pressure sensors, flow sensors, differential pressure sensors, transfer  functions, PID controllers, cascade controllers, signal selectors, switches, pressure loss components, limiting power ramp, dead time


PIPENET Transient Module offers calculation options:

Time step – automatic time step, user defined time step, variable time step,

Force-time history – total force, dynamic force

Wave speed – automatic or user defined

Units – wide choice of units of measurement

Pipe schedules – built-in and user defined

Fluid properties – built-in, user defined and API

Initial state – steady state, user defined, static, run-in time

Default state – initial pipe state of dry or flooded

The user has extensive choice:

Graphical output – time graphs, distance graphs, movies, pressure envelope, magnifier, share y-axis, annotations, user defined line thickness/style/opacity/colour, maximum/minimum limit lines, grid on/off

Tabular output – browser output with search facilities, MS-Word, Min/Max tables, CSV/Excel output

Grids – isometric, orthogonal, snap-to-grid, line thickness control, points or lines, grid on/off control

Background – white, grey and black

View – tool bar, status bar, palette, schematic window, properties window, schematic overview window, data window

Control – precise control over font size, display precision

PIPENET Transient Unique capabilities

Cavitation – vapour cavitation, channel cavitation, no cavitation

Pipe schedules – built-in or user defined, up to 10 pipe schedules in one system

Fittings – built-in fittings from Crane and proprietary, user defined fittings, NFPA data, automatic data calculation of non-standard fittings

Pumps – simple pump data, inertial pump data including power and torque data, turbo pump including built-in and user defined Suter curves

Tanks of user defined cross-section