modelHeatExchangerWithInputEffectiveness

Test model for the heat exchanger with input effectiveness

Extends from Modelica.Icons.Example (Icon for runnable examples).

Information

Validation test for the block Buildings.Fluid.HeatExchangers.ThermalWheels.Latent.BaseClasses.HeatExchangerWithInputEffectiveness.

The input signals are configured as follows:

  • The supply air temperature TSup changes from 273.15 + 30 K to 273.15 + 40 K during the period from 120 seconds to 180 seconds.
  • The sensible heat exchanger effectiveness epsSen changes from 0.7 to 0.8 during the period from 120 seconds to 180 seconds.
  • The latent heat exchanger effectiveness epsLat changes from 0.4 to 0.8 during the period from 180 seconds to 240 seconds.

The expected outputs are:

  • During the period from 60 seconds to 120 seconds, the difference between the entering exhaust air humidity and the leaving exhaust air humidity increases. This difference then decreases during the period from 180 seconds to 240 seconds.
  • During the period from 120 seconds to 180 seconds, the difference between the entering exhaust air temperature and the leaving exhaust air temperature increases.

Components

TypeNameDefaultDescription
Buildings.Fluid.Sources.Boundary_pTsin_2Ambient
Buildings.Fluid.Sources.Boundary_pTsou_2Exhaust air source
Modelica.Blocks.Sources.RampTSupSupply air temperature
Buildings.Fluid.Sources.Boundary_pTsin_1Supply air sink
Buildings.Fluid.Sources.Boundary_pTsou_1Supply air source
Buildings.Fluid.HeatExchangers.ThermalWheels.Latent.BaseClasses.HeatExchangerWithInputEffectivenesshexHeat exchanger
Modelica.Blocks.Sources.RampepsSenSensible heat exchanger effectiveness
Modelica.Blocks.Sources.RampepsLatLatent heat exchanger effectiveness
Buildings.Fluid.Sensors.TemperatureTwoPortsenExhTemOutTemperature sensor for exhuast air outlet
Buildings.Fluid.Sensors.TemperatureTwoPortsenExhTemInTemperature sensor for exhuast air inlet
Buildings.Fluid.Sensors.RelativeHumidityTwoPortsenExhRelHumInHumidity sensor for exhuast air inlet
Buildings.Fluid.Sensors.RelativeHumidityTwoPortsenExhRelHumOutHumidity sensor for exhuast air outlet

Contents

NameDescription
Medium1Supply air
Medium2Exhaust air

Revisions

  • September 29, 2023, by Sen Huang:
    First implementation.