[Bldg-sim] underground temperatures Morocco

[Joe Huang]

Leen,

Barring places with geothermal hot spots, ground temperatures are calculated using a 
simple equation developed by the late Dr. Tamami Kusuda at NBS (National Bureau of 
Standards, now renames NIST National Institute of Science and Technology) in the early 
1970's that assumes a constant deep ground temperature of the average annual air 
temperature + 1 K. This equation is basically a sine curve that dampens and lags the 
annual air temperature profile depending on the soil conductivity and depth below the 
surface.

All that is worked out in any of the processed weather files, such as the IWEC2 weather 
files available from ASHRAE for $229 for the entire set of 3,012 or individually from my 
company for $35 a station.  For your location (Nador), the closest IWEC2 weather file is 
for Melilla 8 kilometers to the north, for which the monthly ground temperatures at 1 
meter below grade are:
16.7  15.7  15.6  16.1  18.0  19.9  21.5  22.6  22.6  21.8  20.2  18.4
(converted to Celsius from Rankine in DOE-2 *.BINM weather file for Melilla)

Joe

Joe Huang
White Box Technologies, Inc.
346 Rheem Blvd., Suite 108D
Moraga CA 94556
yjhuang at whiteboxtechnologies.com
www.whiteboxtechnologies.com
(o) (925)388-0265
(c) (510)928-2683
"building energy simulations at your fingertips"


On 3/5/2013 12:16 PM, leen peeters wrote:
> Dear simulators,
> I am looking for a ground temperature file of Morroco, city of Nador in the North of 
> Morocco.
> I want to use this as input for a ground source heat pump.
> Leen
>
>
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