I have placed a FCV before pumpins station for flow control. I created a valve setting pattern same as the node on the downstream side to analyse it in EPS. but it is showing following errors:
1. FCV cannot deliver flow.
2. Maximum trials exceeded.System may be unstable.
3. Negative pressure at FCV.
4. Negative pressure at downstream junction.
5. Negative pressure at downstream pump
How can i fix these issues?
If yo are putting a pump at the start of Z1,what most people would do is put a variable speed pump at the start fo Z1. This would give you better control and save energy as compared with an FCV which has a fixed setting and wastes energy.