How to correctly model a moist hydrogen gas to air cooled heat exchanger in simulink?

I am modelling a air cooled hydrogen chiller for my project. But simulink doesnt have a block for gas to moist air. So i tried a gas- gas heat exchanger with ma-g interface blocks.with hydrogen and water vapor in moist air.

Or should I use gas-gas heat exchanger ? I dont know the mixture properties of hydrogen with water vapor.

[Jacob Mathew]

Hey @prithviraj naik,

I was able to find the following documentation on Modeling Moist Air System:

https://www.mathworks.com/help/releases/R2025a/simscape/ug/modeling-moist-air-systems.html

Does this suit your workflow? You can reference the following examples:

https://www.mathworks.com/help/releases/R2025a/simscape/examples.html?s_tid=CRUX_topnav&category=moist-air-models

[prithviraj naik]

Hi @Jacob Mathew

Thanks for the response.

Yes, I am using the moist air system to model the moist hydrogen gas system. But I am not able to interface it correctly with dry air cooled heat exchanger.

Answer 1

[Supraja]

Hello Prithviraj ,

I am attaching a link of the Simulink examples for using Mosit Air Systems which will give you a template to get started with Simulink Moist Air system modelling.

Please refer to the link for finding the examples: Moist Air Models — Examples.

Also here is a video from regarding Heat Exchangers in MATLAB which give you an overview about the systems: Heat Exchanger

[prithviraj naik]

Hi @Supraja,

Thanks for the response.

I am able to build a gas network and moist air network seperately. But my target here is to build a heat exchanger model with gas-moist air model as a single unit. ie moist hydrogen as heat source and dry air as cooling medium.