[Bldg-sim] GSHP in hot climate

[Harry BOYER]

yizhao1 at vt.edu a écrit :
> Hi-
>
> We modeled a building with GSHP in a hot climate (zone 1), so it is almost used
> for cooling only. The air-side is PVAVS. water-cooled condenser with GSWL. The
> cooling COP input is ~5. However, the system performs almost the same as
> ordinary air-cooled chillers.
>
> We think the reason may be the high earth temperature (~85 F is used due to the
> local
> climate).
>
> GSHP does not appear to be a solution for hot climate? Any one has some resource
> of real data for this?
>
> Thanks,
> Ying
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Hello,
for ground temparature estimation, book PASSIVE COOLING OF BUILDINGS, 
edited buy M. Santamouris and D. Asimakopoulos provide a whole chapter
on Ground cooling. This ref. includes an equation estimating time 
evolution of ground temp. at a certain deep using various parameters as 
soil thermal diffusivity,
average annual soil temp, time elapsed from the begining of the year, ...
This could be usefull.
Harry BOYER
Réunion Island University