Shaun/Brian:

Thermal conductivity of 2.10 W/mC is approriate for alluvial material. For
consolidated material such as carbonate rock (and crystalline material), it is
much higher (about 5W/mC).

Ok, so I think you have an open-loop system rather than a closed loop in which
heat exchange is through the pipes. Yes, in that case FEFLOW and pretty much
any other model such as MODFLOW/MT3D will work.

Let me know if you need any more help. I am preparing for conducting
non-isothermal flow and transport simulations at the Nevada Test Site.

Best wishes,

Tiraz Birdie



----- Original Message -----
From: bbarnett40
To: feflow@...
Sent: Monday, June 16, 2008 8:39 PM
Subject: [feflow] Re: geothermal model


Shaun

Thermal conductivity of saturated aquifer is typically 2.10 W/mC and
thermal heat capacity of rock grains about 1000 J/kgC.

Cheers

Brian

--- In feflow@..., Shaun Glorie <shaunglorie@...> wrote:
>
> hey tiraz
>
> i don't know what you mean by loop? we will be be abstracting the
water and pumping it back in, with the added heat over a 250m area.
we want to know flows and heat distribution over time. my main
concern is with parameters such as heat capacity and conductivity.
i'm having some trouble finding info on these parameters.
>
>
>
> --- On Mon, 16/6/08, Tiraz Birdie <tbirdie@...> wrote:
>
> From: Tiraz Birdie <tbirdie@...>
> Subject: Re: [feflow] geothermal model
> To: feflow@...
> Date: Monday, 16 June, 2008, 3:10 PM
>
> Hi Shaun:
>
> Will you be using FEFLOW for modeling the subsurface medium or
both, the subsurface and the loops ?
>
> Tiraz Birdie
>
> ----- Original Message -----
> From: shaunglorie
> To: feflow@yahoogroups. co.in
> Sent: Monday, June 16, 2008 1:10 AM
> Subject: [feflow] geothermal model
>
> Hey everyone
>
> Does any one have any papers of models that use feflow to model heat
> transport from the use of geothermal energy. In my case groundwater
> will be used to cool residential and commercial buildings. Any
> information would be helpful
>
> Thanks
> Shaun