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Arpan,<br>
We've done a fair bit of greenhouse modeling and earth duct
modeling (although not combined) using TRNSYS. Bill is quite right
that it is a complex problem. My hunch would be that you'd need
quite long earth ducts under the building in order to get useful
energy transfer between the air and the ground and that you'd lose a
great deal of the energy along the way. I'd be more inclined to look
at an insulated rock-bed thermal storage directly underneath the
greenhouse slab. <br>
Best,<br>
David<br>
<br>
<br>
On 4/25/2012 12:30, Arpan Bakshi wrote:
<blockquote
cite="mid:CAHbW23-bJp8V31zs5EZMTBFSSfCD59LTUgRwt-nk4d7+-sqMgg@mail.gmail.com"
type="cite"><br>
<div>Anyone have experience modeling a greenhouse "climate
battery"?</div>
<div><br>
</div>
<div>Did you use IES, DB/E+ or none of the above?</div>
<div><br>
</div>
<div>More information about the strategy --</div>
<div>
Hot air from the top half of the greenhouse volume is stored in
a below grade heat sink using large ducts which extract air
using a fan. (image below)</div>
<div><br>
</div>
<div>Reference</div>
<div><a moz-do-not-send="true"
href="http://ecosystems-design.blogspot.com/2010/07/tci-lane-ranch-community-greenhouse.html">http://ecosystems-design.blogspot.com/2010/07/tci-lane-ranch-community-greenhouse.html</a>
</div>
<div><br>
</div>
<div><br>
</div>
<div><img moz-do-not-send="true"
src="http://1.bp.blogspot.com/_uNdj-_H8OBc/TNYNLRdvIvI/AAAAAAAACNk/HA07SToLcxU/s1600/DSCN4224.JPG"></div>
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<pre class="moz-signature" cols="72">--
***************************
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
<a class="moz-txt-link-abbreviated" href="mailto:d.bradley@tess-inc.com">d.bradley@tess-inc.com</a>
<a class="moz-txt-link-freetext" href="http://www.tess-inc.com">http://www.tess-inc.com</a>
<a class="moz-txt-link-freetext" href="http://www.trnsys.com">http://www.trnsys.com</a></pre>
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