[Equest-users] The initial trial zone temperature

[CleanTech Analytics]

If there is not a delta T, then you have no building- meaning the
temperatures can not be the same inside and outside.
Energy modeling uses all factors including but not limited to weather,
conductivity/resistivity of envelope, internal gains & losses to calculate
the hourly (or sub-hourly) temperatures. Why you would want the temperature
to be the same I do not understand but again unless you do not have any
loads/gains or envelope than the temperatures will not be the same.
Possibly if you need this for research you could compile a TRNSYS  type for
such research, but even then it would be tough to remove all of the
conditions that cause the buildings temperatures to differ from outside.

*Jeremiah D. Crossett*
*CleanTech Analytics*
*503-688-8951*
*www.cleantechanalytics.com* <http://www.cleantechanalytics.com>


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On Sun, Jun 10, 2012 at 9:47 AM, Tsai <r99631007 at ntu.edu.tw> wrote:

> Dear all,
>
> I'm using eQUEST to simulate a small container house without windows.
> I want to get the hourly trial zone temperature, and the simulation time
> is only for 1 or 2 days.
>
> I want to assum that in the beginning, the inside temperature is equal to
> the outside temperature.
> Therefore, I'd like to know if the initial inside trial zone temperature
> is the same as the outside temperature (in the weather bin file).
> If not, how could I set the initial inside zone trial temperature?
>
> I've done some simulation test, but the inside zone trial temperature
> result for the first hour is always much lower than the outside temperature.
>
> By the way, I'm curious about the meaning of hourly temperature in eQUEST.
> Are they the average temperature in each hour?
>
> Thank you.
>
> Lily
>
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