User manual

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• Support for both co-flow and counter flow in FullStack template
• Support for stack insulation in FullStack template
• New example: SOFC system with energy recovery (micro-gas turbine)
• SOFC system examples now use FastMedia with linear cp instead of NASA media to
avoid nonlinear systems of equations and improve simulation speed.
• Added new predefined media: steam (H2O) hydrogen mixture both as ideal gas (in
NASA and Fast representation) and as ideal gas with condensated mass fraction of
water.
• Added pump model
• Removed SimpleManifold as a consequence of the new manifold structure. Replaced
by the new external manifold.
• Added parameter frictionDistribution to ReactionChannel. The option can be used to
control the type of model exposed in the fluid connector and facilitates creation of
numerically sound system models with alternating control volume and flow resistance
models.
3.6.7 Heat Exchanger Library
The Heat Exchanger library version 1.2 includes a number of new features and
improvements.
New features
• Added support for moist air and condensation on the ambient side of the heat
exchanger
• Added an optional, more detailed representation of the air side pressure drop and heat
transfer. This option is selectable from the heat exchanger parameter dialog, and is
optimized for simulation of stand-alone heat exchangers with high resolution gridded
boundary conditions. The original implementation is also available and is
recommended for use in heat exchanger stack models.
• Added the possibility of computing the total internal liquid or working fluid volume
and mass. When included in a system model based on the Liquid Cooling Library or
Vapor Cycle Library, the total properties will be computed for the whole system
including the heat exchanger.
Examples of improvements
• 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 in library documentation.
Automatic conversion of user libraries is supported using the included conversion script.