Network Calculations for Gas, District Heating and Water
PSIcontrol provides integrated and comprehensive network calculation functions for the supply of gas, water and district heating. Depending on the task these can be stationary, quasi-stationary or non-stationary network calculations:
- For stationary network calculations, the time dependence of the network state is not taken into account. Stationary network calculations are typically used to calculate water networks and low-pressure gas networks.
- For quasi-stationary network calculations, a sequence of stationary calculations is carried out. Switching states and in-feed / out-feed quantities can be changed with the calculation horizon. Based on these hydraulic network states which are time-independent in sections, transport processes can then be calculated (e.g. tracing of quality and temperature, water age). Quasi-stationary network calculations can be particularly useful for calculating district heating networks but also for calculating water networks and low-pressure gas networks.
- For non-stationary network calculations, the flow state is modelled as a function of time. This allows taking into account the network respiration (e.g. in gas networks) or pressure surges. Quality tracing is also possible with non-stationary network calculations. These are used for calculating high-pressure gas networks and pipelines. For non-stationary network calculations we employ the calculation core PSIganesi of our sister division PSIEnergie-GO.
The following function range is available in PSIcontrol for calculating pipeline networks
- State estimator or state monitor
- Cyclically forward-looking simulation
- Forward-looking simulation
- Stationary simulation
- Planning simulation
