.AixLib.Fluid.MassExchangers.MembraneBasedEnthalpyExchangers.BaseClasses.HeatTransfer.MembraneHeatTransfer

Information

This heat transfer model calculates the locally resolved heat flow through a thin membrane using the thermal conductivity λ_Membrane and the membrane thickness δ_Membrane .

heatPorts_a[i].Q̇ = (λ_Membrane ⁄ δ_Membrane ) (A_Membrane ⁄ n ) (heatPorts_a[i].T - T_Membrane[i] )

Analogue for the second surface of the membrane:

heatPorts_b[i].Q̇ = (λ_Membrane ⁄ δ_Membrane ) (A_Membrane ⁄ n ) (heatPorts_b[i].T - T_Membrane[i] )

If the energy dynamics are set to "Steady State" the membrane will not stroe any heat:

0 = heatPorts_b[i].Q̇ + heatPorts_a[i].Q̇

Otherwise the mebrane temperature will change with time.

m_Membrane[i] c_p,Membrane dT_Membrane[i] = heatPorts_a[i].Q̇ + heatPorts_b[i].Q̇

Revisions

• August 21, 2018, by Martin Kremer:
  First implementation.