Differential algebraic modeling of an alkaline electrolyzer plant

Nicola Cantisani; Josefine Dovits; John Bagterp Jørgensen

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arXiv · 2311.09882

Differential algebraic modeling of an alkaline electrolyzer plant

Nicola Cantisani·Josefine Dovits·John Bagterp Jørgensen

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Abstract

We develop a mathematical model for dynamic simulation of an alkaline electrolyzer plant. The plant includes the stack, a water recirculation system and hydrogen storage with compressor. We model each component of the system with mass and energy balances. Our modeling strategy consists of a rigorous and systematic formulation using differential algebraic equations (DAE), along with a thermodynamic library that evaluates thermophysical properties. We perform a simulation with step power input. Dynamic modeling enables simulation and model-based optimization and control for optimal hydrogen production under varying operating conditions.

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Nicola Cantisani, Josefine Dovits, John Bagterp Jørgensen. 2023-11-16. Differential algebraic modeling of an alkaline electrolyzer plant. https://arxiv.org/abs/2311.09882

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