Heat Contact - MapleSim Help

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Home : Support : Online Help : MapleSim Toolboxes : MapleSim Heat Transfer Library : Basic Components : Heat Contact

Heat Contact

Basic component of Contact between 2 objects

	Description
	The Heat Contact component models contact between 2 objects which is controlled by the signal input. The following image is an example with Thermal Conductor component to explain the behavior of Heat Contact component.

	Equations
	$\{\begin{array}{c} dT = R__on \cdot Q__flow & sw = true \\ Q__flow = G__off \cdot dT & otherwise \end{array}$ $dT = T__a - T__b$ When $sw$ is $true$ , the contact is valid and the component has heat resistance $R__on$ . When $sw$ is $false$ , the contact is invalid and the component has heat conductance $G__off$ .

Variables

Symbol	Units	Description	Modelica ID
$Q__flow$	$W$	Heat flow rate from port a to port b	Q_flow
$T__a$	$K$	Temperature of port a
$T__b$	$K$	Temperature of port b
$dT$	$K$	Relative temperature between port a and port b	dT

Connections

Name	Description	Modelica ID
$port_a$	Thermal port a	port_a
$port_b$	Thermal port b	port_b
$sw$	Input signal to control the condition of contact	sw

Parameters

Symbol	Default	Units	Description	Modelica ID
$R_{on}$	$1.0 \cdot 10^{- 7}$	$\frac{K}{W}$	Heat resistance when the contact is valid.	Ron
$G__off$	$1.0 \cdot 10^{- 7}$	$\frac{W}{K}$	Heat conductance when the contact is invalid.	Goff

	See Also
	Heat Transfer Library Overview Basic Overview

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