v1.7.0
Created Thursday 02 September 2021
This release is planned for September 2021
Overview
- Improved numerics, new features, new models and bugfixes.
New Features
- Improvement for valves (VLE and Gas) w.r.t. removing extra non-linear systems for all quadratic pressure drop models.
- Improvement for PumpVLE_L1_affinity w.r.t. removing an extra non-linear system.
- Added geodetic pressure losses to gas pipes.
New Models
- HopperSlice_L4_AdditionalAir hopper model with additional air considering heat exchange with neighbouring furnace models and cooled walls.
- Additional solids (steel) which are typically used in thermal power plants.
Bugfixes
- Flue gas mass fraction at inlet corrected in the SimpleCombustionChamber model.
- Water mass fraction corrected in the Denitrification_L2 model.
Remarks
- In case of using HXs with NTU and ideal HT, make sure to add a modifier in these HXs (wall(stateLocation=2)), i.e. as it is e.g. in Components.HeatExchangers.Check.EvaluateDesuperheater.desuperheater_1, otherwise the translation will fail because the DAE index could not be reduced.
Detailed Release Notes
Basics
Gas Volumes
- Added geodetic pressure losses to gas volumes (Volume Gas L2 advanced, Volume Gas L4), which are used in pipes PipeFlow L4 Advanced and PipeFlow L4 Simple.
Media - Solids
- Additional solids (steel) which are typically used in thermal power plants (SteelX20CrMoV12_1 - 1.4922, SteelX10CrMoVNb9_1 - 1.4903, Steel15NiCuMoNb5 - 1.6368, SteelX3CrNiMo17_13 - 1.4910).
Components
Flue Gas Cleaning
- Water mass fraction corrected in the Denitrification_L2 model.
Furnace
- HopperSlice_L4_AdditionalAir hopper model with additional air considering heat exchange with neighbouring furnace models and cooled walls.
- Flue gas mass fraction at inlet corrected in the SimpleCombustionChamber model.
Pumps
- Improvement for PumpVLE_L1_affinity w.r.t. removing an extra non-linear system.
Valves
- Improvement for valves (VLE and Gas) w.r.t. removing extra non-linear systems for all quadratic pressure drop models (GenericValveVLE L1, GenericValveGas L1, ValveFuelFlueGas L1).
HeatExchangers
- In case of using HXs with NTU and ideal HT, make sure to add a modifier in these HXs (wall(stateLocation=2)), i.e. as it is e.g. in Components.HeatExchangers.Check.EvaluateDesuperheater.desuperheater_1, otherwise the translation will fail because the DAE index could not be reduced, since the derivative functions for the temperature_phxi of the FullyMixtureCompatible were removed.