Modelling heat transfer from a solid pipe to a liquid flow

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Hi,
Is there a simscape block that represents the heat transfer from a pipe bundle (or a single pipe) directly to a cross flow stream of liquid through convection? Or do we need to use the thermal library and represent the heat transfer using appropriate correlations?
Thank you.

Accepted Answer

Vijeta
Vijeta on 14 Jun 2023
There is no pre-built Simulink block in SimScape that directly represents the heat transfer from a pipe bundle to a cross flow stream of liquid through convection. However, you can model this type of heat transfer using the thermal blocks available in the SimScape library.
To model the heat transfer from a pipe bundle to a cross flow stream, you can use a combination of Solid blocks for the pipe, fluid blocks for the cross flow stream, and Heat Transfer blocks to model the heat transfer between the solid and fluid domains.
To model the heat transfer through convection, you can use thermal correlations such as the Nusselt number correlation for forced convection over cylinders or the Churchill correlation for natural convection. These correlations can be implemented using Custom Element blocks in the SimScape library, which allow you to define custom equations and algorithms using MATLAB or Simulink.
Alternatively, you can use a physical modeling environment such as ANSYS Fluent or COMSOL to model the heat transfer process and export the results to MATLAB/Simulink for further analysis and control design.
In summary, while there is no pre-built block for the specific process you are trying to model, you can use the thermal library in SimScape to model the heat transfer from a pipe bundle to a cross flow stream through convection using appropriate correlations and custom element blocks.

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