modelFloor

Information

Model of a floor that consists of five thermal zones.

The five room model is representative of one floor of the new construction small office building for Chicago, IL, as described in the set of DOE Commercial Building Benchmarks (Deru et al, 2009). There are four perimeter zones and one core zone. The envelope thermal properties meet ASHRAE Standard 90.1-2004.

Each thermal zone can have air flow from the HVAC system, through leakages of the building envelope (except for the core zone) and through bi-directional air exchange through open doors that connect adjacent zones. The bi-directional air exchange is modeled based on the differences in static pressure between adjacent rooms at a reference height plus the difference in static pressure across the door height as a function of the difference in air density. Infiltration is a function of the flow imbalance of the HVAC system.

Implementation

Compared to the base class, which has been built for the models in Buildings.Examples.VAVReheat which are for a larger building, the instances of Buildings.Airflow.Multizone.DoorOpen are made smaller. Their length has been reduced proportionally to the difference in length of the walls of the core zone of the two buildings. See also Buildings.ThermalZones.EnergyPlus_24_2_0.Examples.SmallOffice for a description of the differences in these buildings.

References

Deru M., K. Field, D. Studer, K. Benne, B. Griffith, P. Torcellini, M. Halverson, D. Winiarski, B. Liu, M. Rosenberg, J. Huang, M. Yazdanian, and D. Crawley. DOE commercial building research benchmarks for commercial buildings. Technical report, U.S. Department of Energy, Energy Efficiency and Renewable Energy, Office of Building Technologies, Washington, DC, 2009.

Parameters

Connectors

Components

Revisions

• March 23, 2024, by Michael Wetter:
  Corrected wrong annotation.
• February 16, 2022, by Michael Wetter:
  Removed assertion on opeWesCor.wOpe as there is no need to enforce this width.
• April 30, 2021, by Michael Wetter:
  Reformulated replaceable class and introduced floor areas in base class to avoid access of components that are not in the constraining type.
  This is for issue #2471.
• November 15, 2019, by Milica Grahovac:
  Added extend from a partial floor model.
• May 1, 2013, by Michael Wetter:
  Declared the parameter record to be a parameter, as declaring its elements to be parameters does not imply that the whole record has the variability of a parameter.