
KEMPER simulation software for cold water (CDW)
KEMPER and Geberit, together with the software company Dendrit in cooperation with Prof. Rickmann, Münster University of Applied Science, have created innovative calculation software for stipulated CDW operations.


The software is capable of calculating, simulating and ascertaining the necessary flush volumes and times in complex major projects with loop line systems integrated in forced-flow sanitary block areas.
Benefits at a glance
- Ring line calculations in the sanitary block areas using the innovative KEMPER KHS-Venturi flow distributor
- Forced flow and continuous water exchange in otherwise non-flow through lines by using tailor-made and innovative pipeline network structuring with intelligent line conduction
- Controlled drinking water tapping to implement operational use as intended
- Simulation of the water exchange in the CDW system using intelligent flush valve engineering
- Documentation of the stagnation prevention measures using automatically generated rinse and tapping logs ('flush log')

In the case illustrated, the forced-flow sanitary block areas and riser branches in the volume flows to be flushed out are output to the KEMPER flushing units through simulation.
The forced-flow of the sanitary blocks is accomplished combined with the KHS flow distributors in the sanitary blocks. The simulation differentiates between partial and full flushing. Partial flushing includes the partial flow through of the partial sections in the DW system (e.g. sanitary block areas or riser branches with connected, related sanitary blocks). Flushing starts in the last, rear riser branches in the uppermost sanitary blocks and continues towards the drinking water building-connection. During full flushing, the water body from the building connection to the most remote sanitary block is replaced. Partial flushing and the progress made during full flushing are displayed using colour bar charts.
The bars represent the drinking water volumes in the sanitary-block ring system. Stagnant water is initially marked with a red bar (loaded). If the flushing process is executed, the colours change during increasing flushing progress from red to green (partial flushing is taking place, slight contamination) and finally to blue, which means fresh drinking water is now available in the sanitary blocks.
When the complete total flushing of the drinking water system has been completed, all the bars appear blue. The simulation results are issued as flush water volumes with flush times. The planners and operators in the hotels can now precisely say how much flushing volume is achieved in total and can set the flushing in the KEMPER hygiene system configuration software.
