ProcessPLUS™ Extended Uprate
ProcessPLUS™Extended Uprate
helps to determine process values
exceeding their normal spectrum
during a plant’s extended uprate
BTB JANSKY IS RESPONSIBLE
FOR THE FOLLOWING ACTIVITIES:
- Support in receiving agency approval
- Supply of reconciled values to the process computer
PROJEKTDAUER
The performance of a
ProcessPLUS™ Extended Uprate requires an installed
ProcessPLUS™ Online System. Experience shows that the predominant part of the project duration for the realization of a
ProcessPLUS™ Extended Uprate is taken up by receiving agency approval. The total project time can be estimated – depending on the state of the agency approval procedures – to be 1 to 1.5 years.
In the past BTB Jansky has successfully implemented several online versions of their data reconciliation system
ProcessPLUS™ both in nuclear and fossil power plants. The installation of additional measuring points is not required.
Increase of thermal reactor power
of up to 20 % of the original reactor power
in a nuclear power plant.
The extended uprate increase is a process that can only be initiated and realized with government agency approval and requires certain technical and safety related qualifications from the plant operator. Nuclear power plants are designed to produce a certain thermal reactor power (100 %). All components, control values and measurement calibrations relate to this design point. Such a substantial increase of thermal power (up to 20 %) causes changes in process behavior. One example for such a change are Reynolds numbers. When operating above the design point, the Reynolds numbers become too high for the measurement of feed water flow and thus need to be extrapolated in a conventional way. Furthermore, assumptions are made about the uncertainties of the Reynolds numbers. These assumptions do not reflect reality. ProcessPLUS™ Extended Uprate is an applicartion enables the plant operator to determine process values and the respective uncertainties which are difficult or impossible to measure at operating levels above the design point. The advantage of this approach is increased plant safety and improved acceptance with the responsible agencies.
