Re: R: [EnergyPlus_Support] Vented Facade

[fred buhl <wfbuhl@xxxxxxx>]

Emanuele,

You probably need to add a shade. The baffle may not automatically 
generate one.
Brent probably knows if it does.

Fred

Emanuele Naboni wrote:

>Brent,
>
> 
>
>In the specific case I’m simulating a simple external surface with thin
>ceramic and with a gap of 3 inches, that is suppose of generate chimney
>effects.
>
>The not realistic thing is that the temperature of the baffle (ceramic) for
>example in 21 July at 12 is 80°C, the cavity is 50° and the outside face of
>the support wall is around 70°C. It seems that the buffle’ protection from
>the sun isn’t calculated. 
>
> 
>
>I was wondering if I have to set any parameters in “construction with
>internal source” or maybe describe the ceramic external layer in
>“surface:shading:detached:fixed”
>
>Thank you very much.
>
> 
>
>Emanuele, 
>
>Which surface temperatures of the support wall are you refering to? inside
>or outside?   Check what you have set for OutsideFaceEnvironment -- it
>should be OtherSideConditionsModel
>
>Brent
>
>
>
>-----Original Message-----
>From: EnergyPlus_Support@xxxxxxxxxxxxxxx
>[mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx]On Behalf Of Emanuele Naboni
>Sent: Wednesday, March 15, 2006 11:35 AM
>To: EnergyPlus_Support@xxxxxxxxxxxxxxx
>Subject: Re: [EnergyPlus_Support] Vented Facade
>
>
>Hi everybody,
>
>I'm simulting as well an opaque ventilated facade, It works and is
>very intersting!
>The baffle and the cavity have very realistic values.
>
>The only problem is about the effects it does on the wall where is applied:
>running a simulation with a vent facade and running another one
>without vent facade gives the same temperatures on the support wall.
>have anyone verify that?
>
>I'm very intersted too in the Cd values.
>Emanuele
>
>
>
>
>
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