gudg1983
2016-09-22 10:53:31
- #1
Hello everyone,
I have a small understanding problem regarding the relationship between the pump characteristic curve and the pipe network characteristic curve. If I increase the head at the pump, I expect a lower flow rate in the heating circuit, which is logical. The pipe network characteristic curve increases with increasing flow rate, since it shows the pressure loss there, i.e. more flow leads to more pressure loss in the system, also logical. If I now have a flow meter in the system, it should indicate a lower flow rate when the pump head is increased, right? In fact, exactly the opposite happens, i.e. a higher head causes a larger flow rate with otherwise the same parameters.
Maybe someone can help me to resolve this mental block.
Thanks a lot in advance!
I have a small understanding problem regarding the relationship between the pump characteristic curve and the pipe network characteristic curve. If I increase the head at the pump, I expect a lower flow rate in the heating circuit, which is logical. The pipe network characteristic curve increases with increasing flow rate, since it shows the pressure loss there, i.e. more flow leads to more pressure loss in the system, also logical. If I now have a flow meter in the system, it should indicate a lower flow rate when the pump head is increased, right? In fact, exactly the opposite happens, i.e. a higher head causes a larger flow rate with otherwise the same parameters.
Maybe someone can help me to resolve this mental block.
Thanks a lot in advance!