Conversion Component Model Extension¶
A component which converts one set of commodities into another set of commodities, as for example a power plant is modeled to convert natural gas into electricity and carbon dioxide, is modeled in FINE as a so-called Conversion component. The Conversion component model thereby extends the Basic component model. In the following, the set of all Conversion components is labeled \(\mathcal{C}^\text{conv}\subset\mathcal{C}^\text{node}\).
Specification of Operation Variables and Associated Commodities¶
A Conversion component \(\text{c}\in\mathcal{C}^\text{conv}\) only has one type of basic operation variables. It can however be associated with multiple commodities, as it converts commodities into each other. The nominal capacity of a Conversion component is related to one of these commodities labeled \(\text{g}^\text{nominal}\). For example, the capacity of an electrolyzer can be related to either the consumed electricity, or the lower heating value (LHV) of the generated hydrogen.
Specification of Commodity Balance Contributions¶
Inherently, a Conversion component contributes to the balance equations of multiple commodities. These contributions are modeled for \(\text{c}\in\mathcal{C}^\text{conv}\), for all \(\text{g}\in\mathcal{G}^\text{c}\), for all \(\text{l}\in\mathcal{L}^\text{c}\) and for all \(\theta \in \Theta\) as
The conversion factor \(\text{cf}_\text{c,g}\in\mathbb{R}\) is by convention negative if a commodity is consumed and positive if a commodity is generated. The nominal conversion factor \(\big|\text{cf}_{\text{c,g}^{\text{nominal}}}\big|\) is set to 1.
Specification of Objective Function Contributions¶
The cost factor \(\text{F}^\text{O}_{\omega\text{,l}}\) is for a Conversion component \(\text{c}\in\mathcal{C}^\text{conv}\) given as