modelNicol2001HeatingEU

A model to predict occupants' heating behavior with outdoor temperature

Extends from Modelica.Blocks.Icons.DiscreteBlock (Graphical layout of discrete block component icon).

Information

Model predicting the state of the heater with the outdoor temperature and occupancy.

Dynamics

When the space is unoccupied, the heater is always off. When the space is occupied, the lower the outdoor temperature is, the higher the chance to turn on the heater.

References

The model is documented in the paper "Nichol, J., 2001. Characterizing occupant behavior in buildings: towards a stochastic model of occupant use of windows, lights, blinds heaters and fans. In Proceedings of building simulation 01, an IBPSA Conference."

The model parameters are regressed from the field study in the EU in 1999.

Parameters

TypeNameDefaultDescription
RealA-0.32Slope of the logistic relation
RealB2.72Intercept of the logistic relation
IntegerlocalSeed5000Local seed to be used to generate the initial state of the random number generator
IntegerglobalSeed30129Global seed to be combined with the local seed
Modelica.Units.SI.TimesamplePeriod120Sample period

Connectors

TypeNameDefaultDescription
Modelica.Blocks.Interfaces.RealInputTOutOutdoor air temperature
Modelica.Blocks.Interfaces.BooleanInputoccIndoor occupancy, true for occupied
Modelica.Blocks.Interfaces.BooleanOutputonState of heater

Components

TypeNameDefaultDescription
RealpProbability of heating being on

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 23, 2018, by Zhe Wang:
    First implementation.