News BTB Jansky GmbH
2020 PROCESSPLUS® Simulation: A cutting-edge simulation software for plant design projects and existing power plants
All simulation software solutions on the market claiming to be able to reconcile process data are using the same approach. First a simulation model is built (number of redundancies = 0), then redundant information is added to this model after which reconciliation is attempted. The fundamental problem here is that vendor characteristics for the components (pumps, turbines, heat exchangers, etc.) are used in the model. These characteristics hardly ever agree with reality, which causes the model outcomes to be inconsistent with reality as well, sometimes to an alarming degree.
The patented approach of BTB Jansky with PROCESSPLUS® Simulation is the opposite. First a reconciliation model is built, conform to the German VDI 2048 standard. From the reconciled results, component characteristics are constructed. Reconciled results are the best possible reflection of reality, thus these component characteristics reflect real component behavior. In the next step, the reconciliation model is adapted to a simulation model. This is done by implementing the real component characteristics into the model and deactivate all redundant information. The strength of this approach is that simulation results are very realistic. The user can easily switch between the reconciliation and simulation mode, using the exact same process model.
Another advantage with the new approach is that error propagation laws are applied. The uncertainties of the steam table, the uncertainties of the component characteristics and the uncertainties of the constant values (turbine efficiencies, etc.) are taken into account. This leads to a simulation result with uncertainties, which is unique in the market. As a final result, a simulated gross power is stated as:
PGross= 1220 ± 2.5 MW
Remark: A simulation which does not take into account steam table uncertainties is misleading, because any used steam table has uncertainties and thus a result based on steam table values cannot have “zero uncertainty”.
The patent for this new approach was submitted on 13/07/2020.
2020 PROCESSPLUS® Simulation approach
- Build a reconciliation model (e.q. redundancies = 110)
- Build component characteristics for all components based on reconciled data
- Implement all component characteristics into the model
- Reduce the number of redundancies to “0”
- WHAT-IF scenarios can be performed
WHAT-IF Scenario (EXAMPLE: Partial load)
- Change the governor valve position
- Calculate (approx. 10 to 20 seconds)
- Simulation results available
This approach can be conducted manually or automated. If the simulation is automated, the results are directly stored in a database. This also can be used for hourly simulation.
If you are interested in a virtual demonstration of the software, please contact us at firstname.lastname@example.org.