[TRNSYS-users] Change in cooling load with changing aspect ratio

[Jean Marais]

The better insulated you envelope is, the less effect aspect ration, i.e.
volume to surface area ratio will matter. Especially for cooling where the
delta T across the boundry is even less than for the winter heating case.

On Tue, 28 Jul 2020, 06:20 asmin aryal via TRNSYS-users, <
trnsys-users at lists.onebuilding.org> wrote:

> Dear all,
> I have modeled a building in TRNSYS. I am cooling the building using the
> radiant panel on the roof integrated with simple cooling coil and other
> heat recovery devices (like enthalpy wheel, round around coil), for
> representing the radiant room.
>
> I wanted to see the change in cooling load with change in building aspect
> ratio the aspect ratio of the building from 1:1 to 4:1.
> The building with 1:1 aspect ratio is 20m * 20 m * 3m and the building
> with 4:1 aspect ratio is 40m *10m * 3m.  On doing so the cooling load of
> the building increased by around 4%.
> * In my opinion, the cooling load of the building with aspect ratio of 4:1
> from 1:1 should increase more. Why is it just 4%?*
> I have attached the model with 4:1 as ew4isto1.zip and 1:1 as EW
> 1isto1.zip.
>
> *It would be great to get a comment about the way i have used the radiant
> chilled ceiling.*
>
>
>
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