The DISPATCHES PEM Electrolyzer Model represents a simple proton-exchange membrane electrolyzer that operates with a fixed efficiency in converting electricity to hydrogen gas. The outlet state is determined via an H2 property package.
This file here is a synopsis of the PEM system. The full description with arguments and details on the class are available in the renewable case documentation.
The PEM Electrolyzer Model has 0 degrees of freedom.
The PEM Electrolyzer Model consists of a fixed conversion rate between the inlet electricity and the outlet flow rate of hydrogen gas.
The PEM Electrolyzer Model Model uses the following variables:
| Variable Name | Symbol | Notes |
|---|---|---|
| electricity_to_mol | \eta | |
| electricity | I_{t} | |
| outlet_state | O_{t, *} | state variables such as mol flow, temperature, pressure |
Outlet flow of hydrogen gas depends on efficiency:
O_{t, f} = I_{t} \times \eta