Ben_Duffy52

P.S. If you have any suggestions for combinations of values I could insert for the max flow rate, dynamic level and drawdown that would allow my system to work with any pump that would be greatly appreciated!

Hi Muhammed Sarikaya, Thank you for your reply. When I replace the pump with any with a lower flow rate I then get the error below. At the same time, when I increase the max flowrate of the water source to 42m^3/h, I then get the following error: And then as far as I can tell there are no pumps that can supply 918meterW. Is it possible that the parameters I have put in for pipe length (1800m) and pumping height (about 300m) are just too great for any of the pumps in the system to handle? If not is there something that I'm doing wrong here? I look forward to your reply. All the best, Ben

Hi there, I'm having trouble modelling my groundwater pumping system in PVsyst. If I set my Pumping Hydraulic Circuit parameters as follows below: And my pump and PV setup as below: I recieve the following error (and the pump is unproductive almost all of the time): However if I try to increase the depth of the 'Lower dynamic level' at all, or decrease the specific drawdown at all I receieve the following error: If I'm not able to either decrease the drawdown or make the lower dynamic level lower to try and make up for the fact that the pump is supposedly oversized for the well, I'm not sure how I can solve this problem? (FYI for this theoretical project it is acceptable to modify the parameters within reason, the pump level and static level are based on the real pump however.) Further, it is suggesting that I need a PV array of 2160 modules, which seems very excessive for an agricultural water pump (which is based on a real life grid electric pump of unknown pump brand which is known to work well). Thank you in advance for any help, it is much needed! Ben