modelFloor

Extends Buildings.Examples.VAVReheat.BaseClasses.Floor with CO2 generation from people and CO2 from outside air.

Extends from Buildings.Examples.VAVReheat.BaseClasses.Floor.

Information

This model is used in the model Buildings.Examples.VAVReheat.Validation.TraceSubstance. It extends Buildings.Examples.VAVReheat.BaseClasses.Floor with CO2 generation from people and CO2 from outside air infiltration. Calculation of the generation from people uses the internal gain schedule and uses 0.05 people per m2 along with the zone area to calculate the number of people. Then, it assumes CO2 generation is 0.0048 l/s per person (Table 5, Persily and De Jonge 2017) and density of CO2 to be 1.8 kg/m3, making CO2 generation equal to 8.64e-6 kg/s per person. Outside air CO2 concentration is assumed 400 ppm.

References

Persily, A. and De Jonge, L. (2017). Carbon dioxide generation rates for building occupants. Indoor Air, 27, 868–879. https://doi.org/10.1111/ina.12383.

Components

TypeNameDefaultDescription
Modelica.Blocks.Sources.RealExpressionCO2GenWesCO2 generated by people in the west zone
Modelica.Blocks.Sources.RealExpressionCO2GenCorCO2 generated by people in the corridor zone
Modelica.Blocks.Sources.RealExpressionCO2GenEasCO2 generated by people in the east zone
Modelica.Blocks.Sources.RealExpressionCO2GenNorCO2 generated by people in the north zone
Modelica.Blocks.Sources.RealExpressionCO2GenSouCO2 generated by people in the south zone

Revisions

  • November 24, 2021, by David Blum:
    Update calculation of CO2 generation. This is for issue #2781.
  • May 9, 2021, by David Blum:
    First implementation.