Heat Flow Rate Source

R2026b

Constant source of thermal energy, characterized by heat flow

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Heat Flow Rate Source block

To add a block to a model, double-click the canvas and start typing the block name. Then, select the block from the list.

Libraries:
Simscape / Foundation Library / Thermal / Thermal Sources

Description

The Heat Flow Rate Source block represents an ideal source of thermal energy that is powerful enough to maintain specified heat flow at its outlet regardless of the temperature difference across the source.

The source generates constant heat flow rate, defined by the Heat flow rate parameter value.

Examples

Engine Cooling System

Model a basic engine cooling system using custom thermal liquid blocks. A fixed-displacement pump drives water through the cooling circuit. Heat from the engine is absorbed by the water coolant and dissipated through the radiator. The system temperature is regulated by the thermostat, which diverts flow to the radiator only when the temperature is above a threshold.

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Ports

Conserving

A — Source inlet

thermal

Thermal conserving port associated with the source inlet.

Programmatic Use

Port: A

B — Source outlet

thermal

Thermal conserving port associated with the source outlet.

Programmatic Use

Port: B

Parameters

Heat flow rate — Heat flow rate through the source

0 W (default)

Constant Heat flow rate through the source. Positive heat flow rate flows from port A to port B.

Programmatic Use

Parameter: heat_flow

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using Simulink® Coder™.

Version History

Introduced in R2017b