HeatTransfer.BodyRadiation

Lumped thermal element for radiation heat transfer This component is translated by DyadAI

This component extends from Element1D

Usage

TranslatedComponents.HeatTransfer.BodyRadiation(Gr)

Parameters:

Name	Description	Units	Default value
Gr	Net radiation conductance between two surfaces (see docu)	m2

Connectors

• port_a - Thermal port for 1-dim. heat transfer

This component is translated by DyadAI (HeatPort)

• port_b - Thermal port for 1-dim. heat transfer

This component is translated by DyadAI (HeatPort)

Variables

Name	Description	Units
Q_flow	Heat flow rate from port_a -> port_b	W
dT	port_a.T - port_b.T	K

Behavior

$$\begin{array}{rl}\mathtt{dT}\left(t\right)& =-\mathtt{port}\mathtt{\_}\mathtt{b}\mathtt{.}\mathtt{T}\left(t\right)+\mathtt{port}\mathtt{\_}\mathtt{a}\mathtt{.}\mathtt{T}\left(t\right)\\ \mathtt{port}\mathtt{\_}\mathtt{a}\mathtt{.}\mathtt{Q}\mathtt{\_}\mathtt{flow}\left(t\right)& =\mathtt{Q}\mathtt{\_}\mathtt{flow}\left(t\right)\\ \mathtt{port}\mathtt{\_}\mathtt{b}\mathtt{.}\mathtt{Q}\mathtt{\_}\mathtt{flow}\left(t\right)& =-\mathtt{Q}\mathtt{\_}\mathtt{flow}\left(t\right)\\ \mathtt{Q}\mathtt{\_}\mathtt{flow}\left(t\right)& =5.6704\cdot {10}^{-8}\mathtt{Gr}(-{\left(\mathtt{port}\mathtt{\_}\mathtt{b}\mathtt{.}\mathtt{T}\left(t\right)\right)}^4+{\left(\mathtt{port}\mathtt{\_}\mathtt{a}\mathtt{.}\mathtt{T}\left(t\right)\right)}^4)\end{array}$$

Source

# Lumped thermal element for radiation heat transfer
# This component is translated by DyadAI
component BodyRadiation
  extends Element1D
  # Net radiation conductance between two surfaces (see docu)
  parameter Gr::Real(units = "m2")
relations
  Q_flow = Gr * 5.670374419e-8 * (port_a.T ^ 4 - port_b.T ^ 4)
end

Flattened Source

# Lumped thermal element for radiation heat transfer
# This component is translated by DyadAI
component BodyRadiation
  port_a = HeatPort()
  port_b = HeatPort()
  # Heat flow rate from port_a -> port_b
  variable Q_flow::Dyad.HeatFlowRate
  # port_a.T - port_b.T
  variable dT::Dyad.TemperatureDifference
  # Net radiation conductance between two surfaces (see docu)
  parameter Gr::Real(units = "m2")
relations
  dT = port_a.T - port_b.T
  port_a.Q_flow = Q_flow
  port_b.Q_flow = -Q_flow
  Q_flow = Gr * 5.670374419e-8 * (port_a.T ^ 4 - port_b.T ^ 4)
metadata {}
end

Test Cases

No test cases defined.

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