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Re: [TRNSYS-users] Convection in type 534 and inversion mixing flowrate



<I am facing a problem with the convection in type 534. I read the documentation but I still don't understand few things.
Can somebody explain me the behaviour of this type when the parameter inversion mixing flowrate is equal to 0 ?>

When the inversion flow rate is set to zero, temperature inversions in the tank are not rectified and the system can remain in that state (hotter beneath colder).  If the inversion flow rate is set to a positive, non-zero number, the nodes involved in the inversion will be mixed at the specified flow rate (inversions dissolve over time).  If the inversion flow rate is set to a negative, non-zero number, the nodes involved in the inversion are immediately mixed at the end of every timestep through an internal mixing process to eliminate any temperature inversions.

Jeff

 

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Jeff Thornton

President - TESS LLC

22 N. Carroll Street, Madison WI USA 53703

Office: (608) 274-2577  Fax: (608) 278-1475

www.tess-inc.com

E-Mail: thornton@tess-inc.com

 

On 07/18/2013 8:49 am, Rajaa Badaoui wrote:

Hi all,

I am facing a problem with the convection in type 534. I read the documentation but I still don't understand few things.
Can somebody explain me the behaviour of this type when the parameter inversion mixing flowrate is equal to 0 ?

Which parameter modelize the convection phenomena, and how the fluid exhange is managed in the type?

Thank you so much for any answers or advice,

Rajaa.