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Dr Chel, There are a number of different models available. If you need to know the variation of undisturbed ground temperature as a function of depth and time of year then you can use Type77 in the standard TRNSYS library (Physical Phenomena: Simple Ground Temperature) If you are working on a geothermal bore-field application then the components in the TESS GHP library may be of more interest (buried horizontal pipes, and both horizontal and vertical ground heat exchangers. The GHP library includes an example in the ..\Trnsys17\Tess Models\Examples\GHP Library\ directory. If you are looking for finite difference models of ground temperature as it is affected by depth, time of year, and energy flows coming from buildings and other objects then you can either look at the slab-on-grade model that is in the standard package (Loads and Structures: Slab on Grade: Type49). An example of its use is located in ..\Examples\Slab on Grade\. If you are using the more flexible Type1267 ground coupling model then it too has an example located in the ..\Trnsys17\Tess Models\Examples\Individual Components\ directory. This component is separate from the TESS Libraries. Kind regards, David On 1/13/2014 09:39, DrArvind Chel
wrote:
-- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley@tess-inc.com http://www.tess-inc.com http://www.trnsys.com |