Release Note December 2022

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ProSimPlus Standard 3.7.4

• An “Electrolyzer” module is now available in the “Reactors” category of the unit operations library. It allows to simulate an hydrogen production unit based on a water electrolysis process.
• 3 electrolyzer technologies can be modeled:
  • -The alkaline electrolyzer: in this case, the cells are separated by a diaphragm and are immersed in an electrolyte solution;
  • -The PEM electrolyzer: in this case, the cells are separated by a solid electrolyte consisting of a polymer membrane, ensuring the conduction of H+ protons;
  • -Or the SOEC electrolyzer: in this case, the cells are separated by a solid electrolyte consisting of a ceramic membrane, ensuring the conduction of O2- ions.
• The electrolyzer is represented in the software by a stack of cells associated in parallel or in series, for which the user specifies the number as well as the active area.
• 4 new application examples are available with ProSimPlus:
  • «HYDROGEN PRODUCTION BY ELECTROLYSIS»
  • «SEAWATER DESALINATION»
  • «MEMBRANE FILTRATION»
  • «FROZEN POTATOES PROCESSING»
• The new release enables to add several « Balance » and « Analysis » modules of the same type.
• Some enhancements have been done about the scriplets used for the sizing or rating of distillation columns.

ProSimPlus HNO3 3.7.4

• It’s now possible to let the heat exchange coefficients for the oxidation and the oxidation-absorption sections to be calculated by the module  “Nitrous vapors condenser”.
• It’s now possible to let the “Plate oxido-absorption column” module compute the heat transfer coefficient between the coil and the liquid over the tray for any of the trays.
• Regarding the “Absorption plate” module, if the thermal behavior of the plate is calculated from a thermal balance, a dedicated button now allows access to the parameters to be specified.
• It’s now possible to let the module compute the heat transfer coefficient  from the tray geometry, the coil geometry and flow characteristics (trayside and utility side).
• Regarding the “Oxidation plate”, if the thermal behavior of the plate is calculated from a thermal balance, a dedicated button now allows access to the parameters to be specified.
• The new release enables to add several “Balance” and “Analysis” modules of the same type.
• Some enhancements have been done about the scriplets used for the sizing or rating of packed oxido-absorption columns, absorbers, strippers and distillation columns.

BatchColumn 2.0.1

• A new option is available for the modeling of the condenser: the ideal subcooled condenser. In this case, the software calculates the bubble temperatureleading to the total condensation of the vapor, and then applies a subcooling temperature to the condensate, specified by the user.

BatchReactor 2.0.1

• A new option is available concerning the specification of the pressure in the vessel. It is now possible to select a relief valve to define the vapor output stream. This new feature allows to rigorously simulate the draining of pressurized tanks (chemical reactors, gas cylinders, storage tanks, etc…)
• A new thermal device is available: the heat exchange with ambient air.  It can be combined with another thermal device, such as the “helical coil” or the “external heat exchanger”. This feature allows to rigorously model the evolution as a function of time of the heat exchange between the process fluid, the tank, and the ambient air. This thermal device can be used to model classic systems, such as chemical reactors, but also multiple different systems such as storage tanks, gas cylinders, etc…

Simulis Thermodynamics 2.0.42

• The organization of the sidebar of the model tab of the calculator has been revised.
• New options have been added when the pure water model is selected. For enthalpic and entropic calculations, the user can now select:
  • The ProSim reference state, which was the only one available until today
  • Enthalpy and entropy equal to 0 at the triple point temperature and
    pressure and liquid physical state
  • Or the user can define by itself the value of the enthalpy and the entropy
    at a fixed temperature, pressure and physical state

• The NIST/PPDS modified Wagner correlation has been added as a correlation for saturation vapor pressure or Henry’s law of pure Compound
• Simulis Thermodynamics call functions in MATLAB have been modified for a better handling of the pure component case
• In the « Residue » calculation service, it is now possible to select the 3 compounds to be studied in a ternary diagram (for the calculation of azeotropes, distillation boundaries, liquid-liquid equilibrium and residue curves) from the complete list of compounds.