[TRNSYS-users] PCM surface temperatures insignificant balance results

[Seyedmostafa Mousavi]

Hi Amin,

When you link Type 399 to Type 56:

If the surface 1 is facing “the air node”, then TB1 = Tstar (= NType 23: star node temperature of the zone)
If the surface is facing outside, then TB1 = ambient air temperature
If the surface is facing “user-defined boundary condition”, then TB1 = boundary temperature as defined in Type56

Regards,
Seyedmostafa Mousavi
Renewable Energy and Energy Efficiency Group
The University of Melbourne, Australia

From: TRNSYS-users <trnsys-users-bounces at lists.onebuilding.org> On Behalf Of Amin HADDAD via TRNSYS-users
Sent: Sunday, 6 June 2021 4:17 AM
To: TRNSYS users mailing list at OneBuilding.org <trnsys-users at lists.onebuilding.org>
Cc: Amin HADDAD <itshaddad1 at gmail.com>
Subject: [TRNSYS-users] PCM surface temperatures insignificant balance results

Hello TRNSYS users,

I am using type 399 for coupling phase change materials with multizone type 56. And there are many unclear things about it (for me ):

Is it correct to use Tstar_node as an output from type 56 and link it as an input of temperature for both surfaces Tsurface 1 and Tsurface 2 of the PCM type 399 ?

I'll be grateful for any help you can provide

Thank you

Amin


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