oxigrid::optimize::hydrogen::electrolyzer

Struct ElectrolyzerStack

pub struct ElectrolyzerStack {
    pub n_cells: usize,
    pub cell_area_cm2: f64,
    pub temperature_c: f64,
    pub pressure_bar: f64,
    pub exchange_current_density: f64,
    pub alpha: f64,
    pub membrane_resistance_ohm_cm2: f64,
}

Expand description

Electrolyzer stack model based on IV (current-voltage) curves.

Models the electrochemical cell behaviour using Butler-Volmer kinetics for activation overpotential, linear ohmic resistance for membrane loss, and a temperature-corrected reversible voltage.

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§n_cells: usize

Number of cells in series

§cell_area_cm2: f64

Active cell area [cm²]

§temperature_c: f64

Operating temperature [°C]

§pressure_bar: f64

Operating pressure [bar]

§exchange_current_density: f64

Exchange current density [A/cm²] (Butler-Volmer parameter)

§alpha: f64

Charge transfer coefficient α (Butler-Volmer)

§membrane_resistance_ohm_cm2: f64

Membrane area-specific resistance [Ω·cm²]

Implementations§

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impl ElectrolyzerStack

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pub fn new(n_cells: usize, cell_area_cm2: f64) -> Self

Create a new electrolyzer stack with default parameters for a PEM cell.

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pub fn cell_voltage(&self, current_density_a_cm2: f64) -> f64

Compute single cell voltage at a given current density [A/cm²].

V_cell = V_rev + V_act + V_ohm

V_rev: temperature- and pressure-corrected reversible voltage
V_act: Butler-Volmer activation overpotential (anodic dominant)
V_ohm: Ohmic overpotential from membrane resistance

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pub fn operating_point(&self, current_density_a_cm2: f64) -> (f64, f64)

Compute stack operating point at a given current density.

Returns (power_kw, h2_kg_per_h).

H2 production follows Faraday’s law: ṁ_H2 = (n_cells * I * M_H2) / (n_e * F) [g/s] → [kg/h]

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pub fn efficiency(&self, current_density_a_cm2: f64) -> f64

Stack efficiency at given current density (LHV basis, using HHV here for consistency).

Auto Trait Implementations§

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impl UnwindSafe for ElectrolyzerStack

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