...
Peak shaving is the process of using a buffer vessel to limit the size of the production units placed, by . By placing a larger buffer vessel, a smaller production unit can be used, having positive effects on CAPEX costs. Before the calculation method was added, you needed to do simulation manually in order to properly calculate the needed size, now however, the peak shaving algorithm will determine this for you.
| Note |
|---|
this algorithm will only work if the propagated flow contains DHW |
The commonly used algorithm depends on 3 parameters, which become available when clicking the button to edit “Peak shaving”.
| Latex easy math equation inline |
|---|
| macroSize | 1.0 |
|---|
| align | center |
|---|
| latex | {t}_{charge} |
|---|
|
- – time to fully charge the storage/buffer tank,| Latex easy math equation inline |
|---|
| macroSize | 1.0 |
|---|
| align | center |
|---|
| latex | {t}_{peak} |
|---|
|
- – duration of the peak of DHW demand, and| Latex easy math equation inline |
|---|
| macroSize | 1.0 |
|---|
| align | center |
|---|
| latex | \eta_{buffer} |
|---|
|
- – the storage/buffer efficiency.
...
| Latex easy math equation inline |
|---|
| macroSize | 1.0 |
|---|
| align | center |
|---|
| latex | {P}^{*} |
|---|
|
- – additional power to heat up the buffer tank,
...
| Latex easy math equation inline |
|---|
| macroSize | 1.0 |
|---|
| align | center |
|---|
| latex | {T}_{ret_{prim_{avg}}} |
|---|
|
– primary return temperature in the heating mode, and
...
| Latex easy math equation inline |
|---|
| macroSize | 1.0 |
|---|
| align | center |
|---|
| latex | V_{buffer}=\frac{3600×t_{cycle}}{\rho cdc\Delta T(\frac{1}{P_{CHP_{min}}-P_{heat_{min}}}+\frac{1}{P_{heat_{min}}})} |
|---|
|
Eq.(1)
...