Flows Which are Non-Solvable
This analysis rule includes the list of flow elements that Sigmafine reconciliation solver determined were non-solvable. In a Sigmafine model, a non-solvable flow indicates an insufficient amount of measurements in an area of the Model for it to be completely solved.
The following table lists a sample log output for this analysis.
Sample Log
| Time | Severity | Element | Attribute | Message |
|---|---|---|---|---|
| 9/1/2005 10:06 | ...REPORTING FLOWS WHICH ARE NON-SOLVABLE | |||
| 9/1/2005 10:06 | Error | FlowA | ReconciledMassSolvability | FlowA; Flow Source= TankA; Flow Destination= TankB |
Analysis Method
- Collect a list of all flow elements in the current Case that satisfy the following criteria:
- Status Attribute value is IS (In Service).
- Solvability value is NS.
- Write to the log section of the case. Report the violation, flow Element name, measured (or corrected) and reconciled values.
Configuration Using the Wizard
The configuration of the Flows which are Non Solvable is a selection of the Post-Reconciliation Gross Error Analysis Rule. You open the window for configuring the test (shown in the following figure) from the General Gross Error Analysis Rule Wizard.
Open the Gross Error Configuration window as described in Configuring - General Gross Error Analysis Rule.
On the Flows tab, select Flows which are non-solvable.
A Flows which are non-solvable - Attributes window opens.
Select the measurement basis and the Attributes according to the following table:
Attributes
Selections Description Solvability Flow Solvability from Sigmafine reconciliation solver. Default is 'ReconciledMassSolvability'. Status Flow in/out of service status. This defaults to 'ObjectStatus'. Click OK to finish the configuration.
The text "CONFIGURED" displays next to the 'Flows which are non-solvable' selection.
To run this test, see Running the Post Reconciliation Gross Error Analysis.