Heat transfer area in single and two phase pipe

Hi,

Is there a method to change the heat transfer area in a pipe (TL) and pipe (2p)? The existing blocks consider the entire area (i.e. perimeter x length of the pipe), however if we only want to consider a section of this to be the heat transfer area (say for a pipe with rectangular cross section, we only consider one of the faces to be the area of heat tranfer) how would we get that done. Do we need to build a custom block for this, or is there another block?

Thanks

Answer 1

[SOUMNATH PAUL]

Hi,

MATLAB/Simulink does not offer a standard block specifically designed to adjust the heat transfer area in pipes to only a section of the surface.

You will likely need to create a custom block to specify a different effective heat transfer area.

Here is how you can do it, refer to the following link:

https://in.mathworks.com/help/simulink/ug/tutorial-creating-a-custom-block.html#brceczj

For a pipe with regular cross-sectional area where only one face is used for heat transfer, we can calculate the effective area as , (A_{eff} = Width/ times Length)

Kindly adjust the input parameters in existing blocks to use the effective area instead of full pipe surface area.

Thanks,

Soumnath