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von fechner
03 Sep 2024, 14:13
Forum: Delphin
Thema: set insulation boundaries
Antworten: 1
Zugriffe: 1071

Re: set insulation boundaries

Hello,

The best way is to simulate the insulation system too. That means you simulate the complete setup.

If you don't set a boundary condition the boundary is adiabat.
von fechner
05 Aug 2024, 10:49
Forum: Delphin
Thema: Material Property Standards/Testing
Antworten: 1
Zugriffe: 20431

Re: Material Property Standards/Testing

Hello, This is not easy to answer. Normally we use non-standard tests. Only for vapor diffusion you can use the test according ISO 12572. For measuring thermal properties you can also use standard procedures. For moisture storage we measure different points on the sorption isotherm and for high mois...
von fechner
18 Jul 2024, 08:59
Forum: Delphin
Thema: FMU Export Version Control
Antworten: 4
Zugriffe: 22718

Re: FMU Export Version Control

Hello,

As far as I know E+ can also export FMUs (also cosim v2). If you do this you can use a different master in order to couple both FMUs.
One possibility here is our MasterSim (https://www.bauklimatik-dresden.de/downloads.php).
von fechner
14 Jul 2024, 11:07
Forum: Delphin
Thema: FMU Export Version Control
Antworten: 4
Zugriffe: 22718

Re: FMU Export Version Control

Hello,

No, it is not possible. We only export version 2. Why do you need version 1?

Best regards
Heiko Fechner
von fechner
01 Jul 2024, 10:44
Forum: Delphin
Thema: 5-cm ventilated air gap
Antworten: 8
Zugriffe: 46825

Re: 5-cm ventilated air gap

Hello,

I have sent you a EMail with a new link to the file.
The parameter for air gaps in the Delphin material database are set by using the air gap table from the ISO 6946 standard. If you like you can use the table in order to calculate other thicknesses.

With kind regards
Heiko
von fechner
18 Mär 2024, 16:46
Forum: Delphin
Thema: Inquiry Regarding Air Permeability Simulation
Antworten: 3
Zugriffe: 25178

Re: Inquiry Regarding Air Permeability Simulation

Hello, The Kg value in the material data represents the air flow conductivity. It depends on the air tightness of the certain material. The only material in the Delphin database with a measured Kg is mineral wool. You can have a look there for reference values. The most other materials should have l...
von fechner
18 Dez 2023, 15:37
Forum: Delphin
Thema: Dampfdiffusionsaustauschkoeffizient
Antworten: 8
Zugriffe: 46598

Re: Dampfdiffusionsaustauschkoeffizient

Die Kontaktbedingungen sind notwendig bei Luftschichten über größere Temperaturdifferenzen und bei belüfteten Luftschichten.
Wenn man unsicher ist kann man diese Kontaktbedingungen auch einfach immer verenden.
von fechner
13 Dez 2023, 09:51
Forum: Delphin
Thema: Database (Materials)
Antworten: 3
Zugriffe: 23850

Re: Database (Materials)

Hello, This is a different error. The mwu(T) function will be created normally from existing moisture storage function. This function is only used if the ice model is switched on. You have to change the mwu(T) function directly. Do the folowing things: - open material in material editor in DELPHIN -...
von fechner
11 Dez 2023, 15:23
Forum: Delphin
Thema: Database (Materials)
Antworten: 3
Zugriffe: 23850

Re: Database (Materials)

Hello, Some materials in our database doesn't fit the strong check rules for material data. Normally such problems does not lead to simulation problems. You can switch off the check in the solver settings - see checkbox 'Use strict material function checks'. If you switch it off the simulation will ...
von fechner
26 Nov 2023, 21:34
Forum: Delphin
Thema: Inquiry regarding Porosity and Gas Phase Volume Fraction in the DELPHIN Model
Antworten: 3
Zugriffe: 24652

Re: Inquiry regarding Porosity and Gas Phase Volume Fraction in the DELPHIN Model

I have forwarded your request to Mr. Nicolai. He should be able to help you.