[esp-r] Re: furniture in esp-r

[Achim Geissler]

Hi Leen

of course, you could model the furniture as small zones in a large one (with the floor of the furniture connecting to the floor of the large zone) ... this would lead to quite a complex "main zone", though.

Yes, hanging surfaces can be set up with the normal attributes as any other surface, so the adaptive convection should not be a problem.

Best
Achim



On May 23, 2011, at 8:43 PM, leen peeters wrote:

> Hi Achim,
>  
> we planned to do some experiments to see how things should be taken into account, what the influence is on all modes of heat transfer for a range of potential settings.
> It seemed usefull to first check how popular building simulation codes handle the issue.
> So, I will take the explanation below and I assume it can be coupled to the adaptive convection algorithm.
>  
> What I mean by loading and unloading is that the volume, representing the furniture, has to take part in convection and radiation (and potentially some conduction) in order to exchange heat and thus influence its thermal state.
>  
> Leen
> 
> On Mon, May 23, 2011 at 8:36 PM, Achim Geissler <achim.geissler at intergga.ch> wrote:
> Dear Leen
> 
> possibly you want to use "hanging surfaces". I am not sure what you mean by "charging and discharging" other than thermal capacity, but such hanging surfaces have all the same properties as normal zone bounding surfaces.
> 
> "Furniture against the wall" is a difficult one. As a first thought, you can "cut the appropriate surface into the wall" and then give this surface a different construction which has an additional layer and thermal resistance on the interior. I assume you would like to have reduced surface temperatures in the region of the furniture?
> 
> However, often problems arise when thermal bridging (internal walls meet external walls, floors meet external walls and such) and furniture "collide". For this, you would need an (at least) 2d calculation, I would say. ESP-r has such a module, however, I do not know if it is still "active".
> 
> For what its worth.
> 
> Best
> Achim
> 
> 
> On May 23, 2011, at 8:23 PM, leen peeters wrote:
> 
> > Dear all,
> >
> > what is the best way of modelling the effect of furniture in ESP-r? I mean not only the thermal capacity, but the charging and discharging of it and the potential effect of furniture that is located against a wall.
> >
> > Thanks already,
> >
> > Leen
> > _______________________________________________
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> > esp-r at lists.strath.ac.uk
> > http://lists.strath.ac.uk/mailman/listinfo/esp-r
> 
> achim.geissler at intergga.ch
> 
> 
> 
> 
> 

achim.geissler at intergga.ch




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