User manual

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o All two-port components with volumes now have conditional
conductance if using thermal hydraulics.
o The component Valves.SpoolValve and
RotaryActuators.CentrifugalPump now also exists as a main component
and not just as a basic equivalent.
o Excavator and LoadSensingControlSystem are cleaned up and now
easier to overview.
o The tabular oil has different extrapolation options, for instance "hold
last point" and "extrapolate linearly between two last points".
o Aggregated mass and volume are now calculated within the oil
component. Using the parameter "include_in_aggregate", the user can
simply include or exclude a volume or chamber from the aggregated
mass/volume.
Conversion scripts will only support conversion from the previous release to the current
release. Note that the conversion script cannot handle some of the bug fixes. See the release
notes in the library for more information.
3.6.9 Hydro Power Library
A minor release 2.4.1 is available. The focus is on improving the Modelica compliance and
remove tool dependent implementations. As an example, all models now pass Dymola 2015
FD01 Modelica Pedantic check.
Models using Hydro Power version 2.4 will automatically be converted to version 2.4.1
when loaded into Dymola.
3.6.10 Liquid Cooling Library
Liquid Cooling library version 1.3 contains a number of new features and improvements.
New features
• New component models with geometry based pressure drop correlations.
• Added heat exchanger stack templates with 7 and 8 included heat exchangers.
Example of Improvements
• The simplified heat exchanger components based on efficiency (table based and eps-
NTU models) have been improved in that the maximum transferable heat is now
correctly computed from the enthalpy difference and flow rates of both sides.
Previously this assumed uniform specific heat capacity which in rare cases could result
in non-physical solutions.
• All user calibration factors for heat transfer and pressure drop has been converted from
parameters to inputs. Users may still assign them with fixed values in the parameter
dialog, but can now also use variable expressions to define calibration factors.
• Improved flexibility of discretized pipe models. The component can now be
configured to expose a flow or control volume behavior at the component boundaries.