About DWSIM
DWSIM is a Steady-State Chemical Process Simulator, featuring: - Offline functionality: no need to connect to online databases or servers, DWSIM runs completely offline on your device, wherever you are! - Touch-enabled...
DWSIM is a Steady-State Chemical Process Simulator, featuring:
- Offline functionality: no need to connect to online databases or servers, DWSIM runs completely offline on your device, wherever you are!
- Touch-enabled Process Flowsheet Diagram (PFD) Drawing Interface: A hardware-accelerated PFD interface with touch support allows Chemical Engineers to build complex process models in a few minutes
- VLE/VLLE/SVLE calculations using Equation of State and Activity Coefficient models: calculate fluid properties and phase distribution with advanced thermodynamic models
- Compound database with extensive data for more than 1200 compounds
- Rigorous Thermodynamic Models*: PC-SAFT EOS, GERG-2008 EOS, Peng-Robinson EOS, Soave-Redlich-Kwong EOS, Lee-Kesler-Plöcker, Chao-Seader, Modified UNIFAC (Dortmund), UNIQUAC, NRTL, Raoult's Law and IAPWS-IF97 Steam Tables
- Thermophysical state (phase) properties: Enthalpy, Entropy, Internal Energy, Gibbs Free Energy, Helmholtz Free Energy, Compressibility Factor, Isothermal Compressibility, Bulk Modulus, Speed of Sound, Joule-Thomson Expansion Coefficient, Density, Molecular Weight, Heat Capacity, Thermal Conductivity and Viscosity
- Single-compound properties: Critical Parameters, Acentric Factor, Chemical formula, Structure formula, CAS Registry Number, Boiling Point Temperature, Vapor Pressure, Heat of Vaporization, Ideal gas Enthalpy, Ideal gas Enthalpy of Formation at 25 C, Ideal Gas Gibbs Free Energy of Formation at 25 C, Ideal Gas Entropy, Heat Capacity Cp, Ideal Gas Heat Capacity, Liquid Heat Capacity, Solid Heat Capacity, Heat Capacity Cv, Liquid Viscosity, Vapor Viscosity, Liquid Thermal Conductivity, Vapor Thermal Conductivity, Solid Density, Liquid Density and Molecular Weight
- Comprehensive Unit Operation Model set*, including Mixer, Splitter, Separator, Pump, Compressor, Expander, Heater, Cooler, Valve, Shortcut Column, Heat Exchanger, Component Separator, Pipe Segment, Rigorous Distillation and Absorption Columns
- Support for Chemical Reactions and Reactors*: DWSIM features support for Conversion, Equilibrium and Kinetic reactions, together with their respective Reactor models
- Flowsheet Parametric Studies: Use the Sensitivity Analysis Tool to run automated parametric studies on your process model; The Flowsheet Optimizer tool can bring the simulation to an optimum state according to user-defined criteria; The Calculator tool can read flowsheet variables, perform math operations on them and write the results back to the flowsheet
- Petroleum Characterization: Bulk C7+ and TBP Distillation Curve characterization tools enables creation of pseudocompounds to simulate petroleum processing facilities
- Parallel multicore CPU calculation engine: a fast and reliable flowsheet solver takes advantage of the multicore CPUs on modern mobile devices
- Save/Load XML simulation files on the device or in the cloud
- Export simulation results to PDF and Text documents
* Some items are available through one-time in-app purchases
ABOUT CHEMICAL PROCESS SIMULATION
Chemical Process Simulation is a model-based representation of chemical, physical, biological, and other technical processes and unit operations in software. Basic prerequisites are a thorough knowledge of chemical and physical properties of pure components and mixtures, of reactions, and of mathematical models which, in combination, allow the calculation of a process in a computing device.
Process simulation software describes processes in flow diagrams where unit operations are positioned and connected by product or educt streams. The software has to solve the mass and energy balance to find a stable operating point. The goal of a process simulation is to find optimal conditions for a process.
Previous Versions
Here you can find the changelog of DWSIM since it was posted on our website on 2016-11-09 11:58:53.
The latest version is 5.0.0 and it was updated on 2024-04-19 17:39:50. See below the changes in each version.
DWSIM version 5.0.0
Updated At: 2024-03-19
Changes: - [FREE] New Wilson Property Package
- [FREE] New Water Electrolyzer Unit Operation
- [FREE] New Hydroelectric Turbine Unit Operation
- [FREE] New Wind Turbine Unit Operation
- [FREE] New Solar Panel Unit Operation
- Updated phase equilibria calculation subsystem to match DWSIM for Desktop
- Updated Rigorous Column model to match DWSIM for Desktop
- Added Modern and Black-and-White Flowsheet Themes
- Bug fixes and minor enhancements
DWSIM version 4.2.0
Updated At: 2023-06-26
Changes: - PFR: Number of Tubes
- PFR: User-Defined Pressure Drop
- Enhanced reliability of PT Flash
- Fixed an issue with Conversion Reactor
- Fixed PFR pressure drop calculation
DWSIM version 4.1.1
Updated At: 2023-02-26
Changes: Bug fixes
DWSIM version 4.1.0
Updated At: 2022-03-09
Changes: - New 'Auto-Connect Added Objects' feature
- Fixed an issue with Conversion Reactor
DWSIM version 4.0.2
Updated At: 2022-02-07
Changes: Fixed file loading/saving
DWSIM version 4.0.0
Updated At: 2022-01-29
Changes: - New Flat Color Flowsheet Theme
- Overall reliability enhancements to Equilibrium Flash Calculations
- Fixed Adiabatic Calculation mode in Gibbs and Equilibrium Reactors
- Fixed Conversion Reactor
- Enhanced Distillation Column Solver, now supports all specification types
- Other bug fixes and enhancements
DWSIM version 3.3.12
Updated At: 2021-01-18
Changes: Fixed an issue with Material Stream cloning
DWSIM version 3.3.9
Updated At: 2020-09-29
Changes: - Fixed PFR energy balance
- Fixed crashes when trying to open some utilities
DWSIM version 3.3.8
Updated At: 2020-09-23
Changes: Fixed missing PR/SRK EOS Interaction Parameters
DWSIM version 3.3.7
Updated At: 2020-05-19
Changes: - Fixed Head and Efficiency calculation for Compressor/Expander model
- Fixed some bugs with Absorption/Distillation Column model
- Minor bug fixes
