Dear Sir,
The pump has design head of 38.3 m & discharge of 2570 cu.m/h. The pump startup condition is modeled in this file. The transient result viewer shows a pressure drop of 10 m at the downstream of TCV. Please ascertain the reason behind such high head loss near the TCV in this model.
Also severe negative pressure is observed along the pipeline. Please recommend the solution without using surge vessel & without increasing the inertia of the pump & motor.
One thing that requires attention is the flow through the pipe. The flow is shown as 2690 cu.m/h although the pump is delivering 2570 cu.m/h. Why such disparity is occurring in the model?
The model is attached at the end of this message for reference.
Regards,
Sujoy De7762.model.rar
Hello Sujoy,
In the latest version of HAMMER, there doesn't appear to be any negative pressures in the model that you sent.
If you are not already using it, you may want to download and install the latest version of HAMMER. Otherwise, make sure that you provided the correct model.
Scott
Jesse DringoliTechnical Support Manager, OpenFlowsBentley Communities Site AdministratorBentley Systems, Inc.