The pressure control component enforces a specific pressure at the controlled_junction.
This is achieved by adding a required pressure lift or pressure drop between the
from_junction and to_junction, so that controlled_p_bar will be reached
at the controlled junction. The controlled junction can be identical to
the to_junction to control the pressure directly at the outlet.
Internally, the behaviour is achieved by fixing the pressure variable at
controlled_junction in the system matrix and keeping the pressure drop of the
pressure control unit variable, so that is calculated during the Newton-Raphson-calculation.
Note
The temperature at the inlet and outlet junction will not be adapted by the pressure control unit. Therefore, these components usually operate isothermal (inlet temperature = outlet temperature). It is assumed that temperature changes due to compression or expansion (Joule-Thomson-effect) are balanced internally by adding or removing heat.
Warning
A sufficient hydraulic connection between from_junction, to_junction and
controlled_junction is crucial for proper operation of this component.
Hydraulically impossible configurations (e.g., if the controlled junction is on a different
stub) or contradicting other pressure control units will lead to non-convergence of the pipeflow.
For creating a single pressure control unit:
.. autofunction:: pandapipes.create_pressure_control
For creating multiple pressure control units at once:
.. autofunction:: pandapipes.create_pressure_controls
net.press_control
.. tabularcolumns:: |p{0.10\linewidth}|p{0.10\linewidth}|p{0.25\linewidth}|p{0.40\linewidth}|
net.res_press_control
.. tabularcolumns:: |p{0.15\linewidth}|p{0.10\linewidth}|p{0.55\linewidth}|