- Prevent recurrent calibration measures
- Minimize systematic and random errors resulting in minimized uncertainty
- Avoid high cost for hardware, installation, plant down-time and maintenance
MUR based on the methodology of process data reconciliation have been realized in Europe. The agency approval for the first
ProcessPLUS™ in a German nuclear power plant is expected for the year 2011.
PROJECT DURATION
The performance of a
ProcessPLUS™ MUR requires an installed
ProcessPLUS™Online System. Experience shows that the predominant part of the project duration for the realization of a
ProcessPLUS™ MUR is taken up by receiving agency approval. Setting up the reconciled correction factors and realizing the power uprate is a matter of a few weeks. The total project time can be estimated – depending on the state of the agency approval procedures – to be 1 to 1.5 years.
Originally, the MUR program was established by the US Nuclear Regulatory Commission (NRC) in order to allow power uprates based on minimized measurement uncertainties (MUR – Measurement Uncertainty Recapture).
The goal of performing a
ProcessPLUS™ MUR is minimizing measurement uncertainties at the feed water mass flow measurement which is the relevant parameter for the determination of thermal reactor power in a nuclear power plant. The minimization of uncertainties enables the operator – after receiving approval from the responsible government agency – to increase thermal reactor power and at the same time maintain a safe distance to the emergency cooling limit value of 102 % of thermal reactor power. In this process, BTB Jansky is responsible for the following activities:
- Modeling of plant processes
- Installation of the ProcessPLUS™ system
- Support in receiving agency approval
- Supply of correction factors based on reconciled values in order to recalculate thermal reactor power
The advantages of this methodology compared to currently used methods in performing MUR (e.g. installation of ultra-sonic flow meters) are:
