Re: [TRNSYS-users] Air based earth duct

[David BRADLEY <d.bradley@tess-inc.com>]

Benoît,

   I have used Transsolar's Type460 a number of times. I have the feeling that it over predicts cooling a bit but it has plenty of parameters that you can play with to tune the model. I have only run into "puits canadien" in a vertical orientation and I have only used Type460 for horizontal, parallel earth ducts . You might also contact a company called Rehau; they manufacture and market a high thermal conductivity plastic pipe that is often used in ground heat exchangers (both air and water) and they have a performance prediction tool that they use internally. Their performance estimates might be a help in tuning Type460.
Kind regards,
 David


On 4/6/2012 02:37, benoit.cogne@aximaseitha-gdfsuez.com wrote:

Dear Trnsys users,

 

We are looking for a solution to model multiple horizontal "air based earth" ducts (in french "puits canadien")

 

Does any one have a good idea ?

 

Best regards

Benoît COGNE 
Responsable Cellule Efficacité Energétique et Environnementale 
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