modelDHG_PressureDiagram
Pressure diagram of district heating grids (pressure as a function of grid length)
Information
1. Purpose of model
Pressure diagram of district heating grids (pressure as a function of grid length)
2. Level of detail, physical effects considered, and physical insight
(no remarks)
3. Limits of validity
(no remarks)
4. Interfaces
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5. Nomenclature
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6. Governing Equations
(no remarks)
7. Remarks for Usage
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8. Validation
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9. References
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10. Version History
Peniche, 2017
Jakobus Gaeth, 2015
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Integer | n | 2 | Numer of inlet/outlet pairs in supply |
| Integer | m | 4 | Number of inlet/outlet pairs in return |
| Layout | |||
| Real | minY | 0 | Choose or guess the minimal value of the y-axis |
| Real | maxY | 1 | Choose or guess the maximal value of the y-axis |
| String | Unit | "[-]" | Unit for plot variable |
| ClaRa.Basics.Types.Color | colorh | {167, 25, 48} | Line color |
| ClaRa.Basics.Types.Color | colorc | {0, 131, 169} | Line color |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| ClaRa.Basics.Units.Pressure[n] | p_supply | zeros(n) | Pressure values at supply pipes' inputs and outputs in Pa |
| ClaRa.Basics.Units.Pressure[m] | p_return | zeros(m) | Pressure values at return pipes' inputs and outputs in Pa |
| Real[n] | relative_positions_supply | Supply pipes' relative input and output position in p.u. | |
| Real[m] | relative_positions_return | Supply pipes' relative input and output position in p.u. | |
| Real | point_supply | transpose({relative_positions_supply*100, y_supply}) | |
| Real | point_return | transpose({relative_positions_return*100, y_return}) |