modelTwinHouseN2

Extends from Modelica.Icons.Example.

Information

Overview

Twin House N2 is part of the empirical validation:

Room layout


The Frauenhofer Institute for Building Physics (IBP) created two identical full scale buildings in Holzkirchen Germany in the course of reproducing building energy performances based on measurement data.

The Twin House N2 was implemented as part of the IEA EBC Annex 58.

Air exchange rates:

  • n50 = 1.62 1/h due to air leakage
  • n = 120 m3/h caused by mechanical ventilation system


Building specifications give information about experimental schedule (temperatures are maintained through specified heat inputs in every room):

  • Day 1-7: Initialization: constant 30°C in each room
  • Day 8-14: Constant 30°C in each room
  • Day 15-28:ROLBS sequence in living roomand no other heat inputs
  • Day 29-35: Re-initialization constant 25°C in each room
  • Day 36-42: Free-float temperatures

Known Limitations

The experiment takes place on the ground floor of Twin House N2. Measured temperatures within the cellar and attic are used as boundary conditions for the ground floor.

References

  • Empirical Whole Model Validation, Modelling Specification Test Case Twin_House_1, IEA ECB Annex 58, Validation of Building Energy Simulation ToolsSubtask 4 Version 6
  • IEA ECB Annex 58

Overview

Model for the bathroom.

Concept

The following figure presents the room's layout:

Room layout

Components

TypeNameDefaultDescription
Rooms.RoomEmpiricalValidation.RoomTwinHouseN2roomTwinHouseN2
BoundaryConditions.WeatherData.Old.WeatherTRY.Weatherweather
Modelica.Thermal.HeatTransfer.Sources.PrescribedTemperatureoutsideTempambient temperature
Modelica.Thermal.HeatTransfer.Sources.PrescribedTemperatureTemp
Modelica.Blocks.Sources.CombiTimeTableTempCellar
Modelica.Blocks.Interfaces.RealOutputroomTemp
Modelica.Blocks.Interfaces.RealOutputambientTemp
Modelica.Blocks.Sources.RealExpressionroom
Modelica.Blocks.Sources.RealExpressionambTemp
Modelica.Blocks.Sources.CombiTimeTableTempAttic
Modelica.Blocks.Math.Addadd
Modelica.Blocks.Math.UnitConversions.To_degCto_degC1
Modelica.Blocks.Sources.CombiTimeTableHeatInputHeat input for every room
Modelica.Blocks.Math.Sumsum1
Modelica.Blocks.Sources.CombiTimeTableVentilationRateVentilation rate caused by mechanical ventilation system
Modelica.Thermal.HeatTransfer.Sources.PrescribedTemperatureTemp3
Modelica.Blocks.Sources.Constantconst
Modelica.Blocks.Math.Gaingain
Modelica.Blocks.Math.Gaingain1
Modelica.Blocks.Sources.CombiTimeTableVentTempTemperature for mechanical ventilation rate
Modelica.Blocks.Math.UnitConversions.From_degCfrom_degC
Modelica.Thermal.HeatTransfer.Sources.PrescribedTemperatureTemp2
Modelica.Blocks.Math.UnitConversions.From_degCfrom_degC1
Modelica.Blocks.Math.UnitConversions.From_degCfrom_degC2
Modelica.Thermal.HeatTransfer.Sources.PrescribedHeatFlowHeatConv
Modelica.Thermal.HeatTransfer.Sources.PrescribedHeatFlowHeatRad
Modelica.Blocks.Math.GainConv
Modelica.Blocks.Math.GainRad
Modelica.Blocks.Sources.CombiTimeTableMeasuredTemperaturesMeasured temperatures for every roo, on the ground floor
Modelica.Blocks.Interfaces.RealOutputN2_living_AT_h67cm
Modelica.Blocks.Interfaces.RealOutputN2_living_AT_h125cm
Modelica.Blocks.Interfaces.RealOutputN2_living_AT_h187cm
Modelica.Blocks.Interfaces.RealOutputN2_corridor_AT
Modelica.Blocks.Interfaces.RealOutputN2_bath_AT
Modelica.Blocks.Interfaces.RealOutputN2_child_AT
Modelica.Blocks.Interfaces.RealOutputN2_kitchen_AT
Modelica.Blocks.Interfaces.RealOutputN2_doorway_AT
Modelica.Blocks.Interfaces.RealOutputN2_bedroom_AT
Modelica.Blocks.Interfaces.RealOutputmeanMeasuredTemp
Modelica.Blocks.Math.Sumsum2RoomVolume/TotalVolume for each room
Modelica.Blocks.Math.UnitConversions.To_degCto_degC2

Contents

NameDescription
MediumAirMedium within the room

Revisions

  • October 1, 2020 by Konstantina Xanthopoulou:
    First Implementation.
  • This is for #967.