Build139 New Models and Add-Ons
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Latest SysCAD Version: 19 March 2024 - SysCAD 9.3 Build 139.35102
Related Links: Build 139 Revision History, Upgrading Projects
The following Release Notes represent the state of Build 139 at the time of first release. Please refer to the Build 139 Revision History for subsequent updates.
New Add-Ons
The following new TCE (Thermodynamic Calculation Engine) Add-Ons all relate to flexible integration in SysCAD plant models of third party software performing detailed equilibrium and thermodynamic property calculations. The direct integration of these specialist software programs in SysCAD provide a significant range of new and detailed applications in the SysCAD flowsheet simulator for a range of pyromet, hydromet and aqueous chemistry systems.
These add-ons were originally released as a BETA version in Build 138. They have been significantly improved and new unit models added in Build 139. PHREEQC and ChemApp add-ons are no longer a BETA version.
Each add-on comes with the following improved models. These were originally released as BETA versions in Build 138:
- Model Configuration - Used to define and view various options for the selected TCE database, including management of mapping of SysCAD species list to species list used in TCE.
- Direct Calc - Stand alone unit model to perform side calculations using TCE for predicting chemistry equilibrium conditions and properties on a user defined TCE stream.
- Side Calc - Stand alone unit model to perform side calculations using TCE for predicting chemistry equilibrium conditions and properties on a SysCAD stream in the current project. New for Build 139 is the ability to combine several streams/contents to be evaluated in a single Side Calc model.
- Reactor - Include this model in a SysCAD stream to use TCE to calculate predicted outlet conditions. Functionality is similar to SysCAD Reaction Block and FEM where for a given feed, reactions occur with optional heat exchange. The model can be configured in a number of ways for different purposes.
PHREEQC Add-On
See PHREEQC Add-On for a description of this new add-on. PHREEQC is a computer program that is designed to perform a wide variety of aqueous geochemical calculations. It is developed and maintained by the United States Geological Survey www.usgs.gov/software/phreeqc.
New in Build 139 is the ability for the user to enter estimated LogK values directly into SysCAD. 
See LogKAdjust page for more information.
ChemApp Add-On
See ChemApp Add-On for a description of this new add-on. ChemApp is a computer program for thermodynamic phase equilibrium calculations. It permits the calculation of complex, multicomponent, multiphase chemical equilibria and their associated extensive property balances. It can use database files (CST files) generated using the FactSage family of products, as well as other sources. ChemApp [1] is developed and maintained by GTT-Technologies [2]. FactSage [3] is by CRCT ThermFact Inc [4] and GTT-Technologies [5].
AQSol Add-On
See AQSol Add-On (currently in BETA) for a description of this new add-on. The AQSol program can be used for general phase equilibrium calculations for aqueous solutions. It is developed and maintained by Aqueous Solutions ApS, Søborg, Denmark www.phasediagram.dk.
General TCE Improvements
- Multithreading implemented for all.
- Increased configuration options, including number of engines and minimum water content.
- Individual phase deportment information now available for all models.
New Models
New TCE Unit Models
- PHREEQC Evaporator / AQSol Evaporator - Uses PHREEQC/AQSol to calculate the equilibrium conditions and properties. May be used as a Crystallizer. Allows embedded HX and slurry separator. Can be used as part of a Flash Train.
- PHREEQC Flash Tank / AQSol Flash Tank - Uses PHREEQC/AQSol to calculate the equilibrium conditions and properties. May be used as a Crystallizer. Can be used as part of a Flash Train.
- PHREEQC Reverse Osmosis Unit / AQSol Reverse Osmosis Unit - Uses PHREEQC/AQSol to calculate the equilibrium conditions and properties. The user may specify the yield and efficiency of the process, as well as the outlet pressure requirements.
- PHREEQC Solvent Extraction - Uses PHREEQC to calculate the equilibrium conditions and properties. The Solvent Extraction unit will mix perfectly all the input streams, complete species transfer across phases, then separate the output based on individual phase or density.
Material Body Model
The main purpose of this unit operation is to simulate the transfer of heat through a body of material. Examples of this are linings of kilns or smelters, and insulation of vessels and pipes.
The model can be a standalone unit with no Pipe connections, or it can be connected to incoming and outgoing streams and heat can be exchanged between the material and the stream.
The model uses the Material sub-model for the bulk of the calculations.