Heat Storage

The cost of the component was explained in component costs or emissions page. The reference size is the maximum storage capacity \(E_{HT,max}\). The storage equation described in storage systems page are used.

The power for charging and discharging the heat storage is implemented as follows:

\[\begin{split}\sum \dot{Q}^t = \; &\dot{Q}_{el}^t + \dot{Q}_{Air-HP,h}^t + \dot{Q}_{HP}^t + \dot{Q}_{Boil}^t + \dot{Q}_{CHP}^t + \dot{Q}_{ES}^t + \dot{Q}_{FC}^t + \dot{Q}_{stc,HT,heat}^t - \\ &\dot{Q}_{stc,HT,cool}^t - \dot{Q}_{sta,HT,cool}^t + \dot{Q}_{sta,HT,heat}^t - \dot{Q}_{h}^t\end{split}\]

The maximum discharge rate is limited as follows:

\[\dot{Q}_{stc,HT,cool}^t + \dot{Q}_{sta,HT,cool}^t + \dot{Q}_{h}^t \leq f_{dis}^t \cdot E_{HT,max}^{[\frac{t}{l_{yr}}]}\]

The minimum discharge rate is limited as follows:

\[\begin{split}&\dot{Q}_{el}^t + \dot{Q}_{Air-HP,h}^t + \dot{Q}_{HP}^t + \dot{Q}_{Boil}^t + \dot{Q}_{CHP}^t + \dot{Q}_{ES}^t + \\ &\dot{Q}_{FC}^t + \dot{Q}_{stc,HT,heat}^t + \dot{Q}_{stc,HT,cool}^t \leq f_{ch}^t \cdot E_{HT,max}^{[\frac{t}{l_{yr}}]}\end{split}\]