ProcessChem
Thermodynamics & process engineering
ProcessChem looks up fluid properties, solves phase and reaction equilibrium, and sizes heaters, vessels, heat exchangers and fluidized beds. It runs on your phone, with no account and no connection.
On iPhone and iPad today. Android is coming soon.
These are screens from the app, not mock-ups. Property results for ethanol, the four Thermo modes, the Case list, and the Units tab.
Every tab shares the same thermodynamic core, so a number you read in one place agrees with the answer in another.
Density, heat capacity, viscosity, thermal conductivity, vapour pressure and more for thousands of chemicals and mixtures, with flash point, flammability limits and exposure limits alongside.
Flash a stream at any two properties, find the equilibrium composition of a reacting system, balance a reaction with its energy balance, or get the cell voltage of an electrolysis.
Start from the question an engineer actually asks. Give what you know and the case finds the rest, and it refuses a combination that cannot happen, such as heat flowing the wrong way.
Choose a unit for each quantity, so bar can sit beside °C or psi beside °F. Gas volumes convert at the Normal reference you pick: 0 °C, 15 °C or 20 °C.
The numbers come from published reference data and established models.
CoolProp's reference equations cover more than 100 fluids. Peng-Robinson with ChemSep interaction parameters handles the rest, and mixtures.
NASA CEA coefficients for 1,820 species, plus tabulated data for cement and metallurgical minerals, feed the equilibrium and reaction solvers.
No account, no ads, and no connection needed. Your calculations stay on your phone unless you save them to a file.
A company code switches ProcessChem to your company's setup. Engineers see only the tabs and calculators they use, in your order, with your units and your standard cases already saved. Everyone else keeps the standard app.
Fictional example companies. Illustrative screens.
We set this up with you: your tabs, your cases, your units and your standard setups. If your plant needs a calculator that does not exist yet, we can build it for you.
Each tab and calculation has its own page that states the governing equations, the data sources and the limits of the method.