BuildSysPro.IBPSA.ThermalZones.ReducedOrder.RC.OneElement

# .BuildSysPro.IBPSA.ThermalZones.ReducedOrder.RC.OneElement

Thermal Zone with one element for exterior walls

## Information

This model merges all thermal masses into one element, parameterized by the length of the RC-chain `nExt,` the vector of the capacities `CExt[nExt]` that is connected via the vector of resistances `RExt[nExt]` and `RExtRem` to the ambient and indoor air. By default, the model neglects all internal thermal masses that are not directly connected to the ambient. However, the thermal capacity of the room air can be increased by using the parameter `mSenFac`.

The image below shows the RC-network of this model.

## Revisions

- March 7, 2022, by Michael Wetter:
  Removed `massDynamics`.
  This is for #1542.
- October 9, 2019, by Michael Wetter:
  Refactored addition of moisture to also account for the energy content of the water vapor.
  This is for IBPSA, issue 1209.
- September 24, 2019, by Martin Kremer:
  Added possibility to consider moisture balance.
  Defined `volAir` conditional. Added conditional `volMoistAir` and corresponding in- and output connectors.
- July 11, 2019, by Katharina Brinkmann:
  Renamed `alphaRad` to `hRad`, `alphaWin` to `hConWin`, `alphaExt` to `hConExt`, `alphaExtWallConst` to `hConExtWall_const`, `alphaWinConst` to `hConWin_const`
- January 25, 2019, by Michael Wetter:
  Added start value to avoid warning in JModelica.
- September 26, 2016, by Moritz Lauster:
  Added conditional statements to solar radiation part.
  Deleted conditional statements of `splitFactor` and `splitFactorSolRad`.
- April 17, 2015, by Moritz Lauster:
  First implementation.

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