Simscape multi-species gas chemical domain

A domain and a library tailored for fuel cell and electrolyser modeling.

This domain is inspired by the Simscape Foundation Gas model and the Moist Air domain. It supports multi-species gas mixtures using a molar-based formulation, providing more consistent thermodynamic properties than mass-based approaches. The library is intended for modeling dynamic fuel-cell and electrolyzer systems—currently with a focus on solid-oxide technologies.

All fundamental components are included, such as sources, sensors, flow restrictions, chambers, and more. The library also provides an equilibrium reactor, a burner, and an NTU-based heat-exchanger interface.

This is an ongoing work-in-progress. I’m publishing it early to gauge interest and gather feedback before developing it into a complete, fully featured library.

I am a dynamic-systems engineer with eight years of experience in PEM technology and the last two years working in solid-oxide systems.

Feedback, questions, and expressions of interest are very welcome.