modelNicol2001WindowsUK
Extends from Modelica.Blocks.Icons.DiscreteBlock (Graphical layout of discrete block component icon).
Information
Model predicting the state of the window with the outdoor air temperature and occupancy.
Dynamics
When the space is unoccupied, the window is always closed. When the space is occupied, the lower the outdoor temperature is, the lower the chance to open the window.
References
The model is documented in the paper "Nicol, J.F., 2001, August. Characterising occupant behaviour in buildings: towards a stochastic model of occupant use of windows, lights, blinds, heaters and fans. In Proceedings of the seventh international IBPSA conference, Rio (Vol. 2, pp. 1073-1078)."
The model parameters are regressed from the field study in the UK in 1998 from 3600 naturally ventilated buildings.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Real | A | 0.169 | Slope of the logistic relation |
| Real | B | -2.65 | Intercept of the logistic relation |
| Integer | localSeed | 6002 | Local seed to be used to generate the initial state of the random number generator |
| Integer | globalSeed | 30129 | Global seed to be combined with the local seed |
| Modelica.Units.SI.Time | samplePeriod | 120 | Sample period |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Blocks.Interfaces.RealInput | TOut | Outdoor air temperature | |
| Modelica.Blocks.Interfaces.BooleanInput | occ | Indoor occupancy, true for occupied | |
| Modelica.Blocks.Interfaces.BooleanOutput | on | State of window |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Real | p | Probability of window opened |
Revisions
-
December 6, 2024, by Michael Wetter:
Refactored implementation of random number calculations, transfering the local state of the random number generator from one call to the next.
This is for #4069. -
July 25, 2018, by Zhe Wang:
First implementation.