.Buildings.HeatTransfer.Conduction.BaseClasses.der_temperature_u

Information

This function computes at the support points T_d the derivatives dT/du of the cubic hermite spline approximation to the temperature vs. specific internal energy relation. These derivatives are then used by the function Buildings.HeatTransfer.Conduction.BaseClasses.temperature_u to compute for a given specific internal energy the temperature.

Interface

function der_temperature_u
  input Modelica.Units.SI.SpecificHeatCapacity c "Specific heat capacity";
  input Modelica.Units.SI.Temperature TSol "Solidus temperature, used only for PCM.";
  input Modelica.Units.SI.Temperature TLiq "Liquidus temperature, used only for PCM";
  input Modelica.Units.SI.SpecificInternalEnergy LHea "Latent heat of phase change";
  input Boolean ensureMonotonicity = false "Set to true to force derivatives dT/du to be monotone";
  output Modelica.Units.SI.SpecificInternalEnergy ud[Buildings.HeatTransfer.Conduction.nSupPCM] "Support points for derivatives";
  output Modelica.Units.SI.Temperature Td[Buildings.HeatTransfer.Conduction.nSupPCM] "Support points for derivatives";
  output Real dT_du[Buildings.HeatTransfer.Conduction.nSupPCM](each fixed = false, each unit = "kg.K2/J") "Derivatives dT/du at the support points";
end der_temperature_u;

Revisions

• October 17, 2014, by Michael Wetter:
  Changed the input argument from type Buildings.HeatTransfer.Data.BaseClasses.Material to the elements of this type as OpenModelica fails to translate the model if the input to this function is a record.
• October 13, 2014, by Michael Wetter:
  Corrected the input argument to be an instance of Buildings.HeatTransfer.Data.BaseClasses.Material rather than Buildings.HeatTransfer.Data.Solids.Generic.
• March 9, 2013, by Michael Wetter:
  Revised implementation to use new data record.
• January 19, 2013, by Armin Teskeredzic:
  First implementations.