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Heat Exchangers for Two Phase Flow

Experimenter
Experimenter

Hello,

 

I just started using the Two-Phase Flow Library in Amesim.
Are there any simple/functional heat exchanger components?

I can't seem to find any.

Best regards,

AmeSpartan

5 REPLIES

Re: Heat Exchangers for Two Phase Flow

Siemens Valued Contributor Siemens Valued Contributor
Siemens Valued Contributor

Hi AmeSpartan,

 

What kind of heat exchangers are you looking for?
You said simple components. So what effects do you need to take into account?
Only the heat exchange or do you want to look deeper into effects like pressue loss, leakage, ...


Do you have the Air-Conditioning library? It works with Two-Phase flow components.

Best regards,
Eric

P.S. Cool name by the way! Smiley Wink

Re: Heat Exchangers for Two Phase Flow

Experimenter
Experimenter

Hi Eric,

no, unfortunately I don't have the Air-conditioning Library.

I'm looking for a really basic condenser.
A gaseous two-phase flow fluid in my model is going through a turbine and shall be fully condensed afterwards.
I don't need to take into account the pressure drop, leakage or any other phenomena. It's just a first approach to get started.

Thank you and best regards,

AmeSpartan

Re: Heat Exchangers for Two Phase Flow

Siemens Valued Contributor Siemens Valued Contributor
Siemens Valued Contributor

Hi AmeSpartan,

 

Ok. There's no pre-configured condenser component in the two-phase flow library.

But with the components with imposed heat flux (pipe and chamber) you can build your own functional heat exchanger.

Here's what you do:

 

Condenser.PNG

A fully condensed fluid has a steam mass fraction of zero. With this and your system's pressure you can define a target state. From this target state you'll get your target enthalpy (h_2) for the given pressure. Additionally you can measure your current state's enthalpy (h_1).
Now you can calculate the needed heat flux to fully condense your fluid from any given state. This heat flux is imposed to the chamber and out goes your fully condensed fluid.

In the same way you can build a evaporator (x = 1) or with slight changes you can even define subcooling and superheating.

I hope this helps!

Best regards,

Eric

 

Re: Heat Exchangers for Two Phase Flow

Experimenter
Experimenter

I tried to rebuild that and it seems to work fine!

Thank you!!

Re: Heat Exchangers for Two Phase Flow

Siemens Creator Siemens Creator
Siemens Creator

Hi AmeSpartan,

 

I think this article could help you:

https://community.plm.automation.siemens.com/t5/Knowledge-Base-1D-Simulation/Step-by-step-modeling-o...

 

Regards,

Nirmal