Re: [EnergyPlus_Support] Trying to use energyplus for thermal transmission

["Michael J. Witte" <mjwitte@xxxxxxxx>]

Christian:

Yes, it is possible to simulate the layers that you propose.  
However, the CTF algorithm reports only the inside surface 
temperature and outside surface temperature.  You would have to use 
the MTF (moisture transfer functions) algorithm in order to report 
layer temperatures.  However, this introduces an extra level of 
complexity which will impact the computed temperatures.  Perhaps with 
the mositure properties set to some extreme so that moisture impacts 
drop out, you might get a solution.  There are probably better tools 
for surface conduction analysis at the level of detail that you 
propose.

Mike

p.s.  I will be out of the office July 16-27.  E-mail sent to 
mjwitte@xxxxxxxx will not be seen until I return.  Use energyplus-
support@xxxxxxxx or EnergyPlus_Support@xxxxxxxxxxxxxxx so that others 
can respond.


On 14 Jul 2003, at 18:06, c_eulitz wrote:

> Hallo out there,
> I've used energyplus for regular simulation of the thermal condition
> of buildings by defining zones with there surfaces around.
> 
> But now I'm trying to use energyplus to calculate the thermal 
> transmission through several surfaces:
>       Is it possible to create only one wall - construction, built of
> layers from different materials (for example window glas, PVC, air,
> concrete) and start a simulation for this wall with constant
> temperature (23°C) on one side and the outside temperature on the
> other side (by using the weather data)? The result I need to know is
> the surface temperature of every layer material inside of this wall,
> to get statements which structure is the best for my wall relative to
> the location built on.
> 
> Best regards,
> 
> Christian
> 
> 
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