Equation Of State Python Packages

thermo

Thermodynamics and Phase Equilibrium component of Chemical Engineering Design Library (ChEDL)

neqsim

NeqSim is a library for calculation of fluid behavior, phase equilibrium and process simulation. This project is a Python interface to NeqSim.

feos

FeOs - A Framework for Equations of State and Classical Density Functional Theory

compactobject-tov

An open-source package for neutron star whole workflow Bayesian inference constraining Neutron star EOS package

pythermomodels

Python Thermodynamic Models

tovextravaganza

Python toolkit for solving TOV equations, calculating tidal deformability, and exploring neutron star properties for gravitational wave and nuclear astrophysics research

pyforfluids

PyForFluids: Fluids Properties Based on Equations of State

rgfrosh

A frozen shock solver for ideal and real gas equations of state.

co2-eos

Differentiable CO₂ thermodynamic properties in JAX. Pure-JAX Span-Wagner equation of state — JIT-compiled, vmappable, and fully differentiable via jax.grad. Phase-aware solvers robust through the critical point. Allows GPU speedup over CoolProp for CO₂.

despasito

Determining Equilibrium State and Parametrization Application for SAFT, Intended for Thermodynamic Output