Dynamic Load Flow Calculation for Heat Transfer Networks (Factsheet)

A static load flow calculation, commonly used in conventional software, is often insufficient, as it always assumes a steady-state condition of the network after each time step.

The dynamic load flow calculation offers a solution to this problem. It enables:

• A temporally and spatially resolved dynamic bidirectional calculation of any thermal network, taking into account the hydraulic inertia of water.
• A realistic simulation of temperature changes in the network by adjusting the temperatures at the supply or return feed-in, ensuring that temperature variations reach consumers with a delay rather than taking effect immediately within the same time step, as in static calculations.
• The calculation of intentionally induced temperature increases or decreases (e.g., through the use of heat pumps) within the supply or return flow.