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<p>Tomas,</p>
<p> Make sure that you activate the internal device in the zone
window as well as defining the specifics of the internal device in
the window type manager.</p>
<p>kind regards,</p>
<p> David</p>
<p><br>
</p>
<div class="moz-cite-prefix">On 12/08/2021 08:56, Tomas Persson
(HDa) via TRNSYS-users wrote:<br>
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<p class="MsoNormal"><span lang="EN-US">Dear TRNSYS user<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I tried to activate the
internal shading device in the window type manager to
increase the thermal resistance in a greenhouse model
(thermal curtain), but I was not able to detect any
influence on the heat loss.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Assuming it would work
it seems it can only be activated by solar radiation and not
from an input, thus it is not useful anyway to model thermal
curtains in greenhouses.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Do you have any
suggestion how to model a thermal curtain in a greenhouse
that can be activated independently from the solar radiation
and reduce both solar radiation and heat losses.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-family:"Arial",sans-serif;mso-fareast-language:EN-GB"
lang="EN-US">Kind Regards<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-family:"Arial",sans-serif;mso-fareast-language:EN-GB"
lang="EN-US">Tomas Persson<o:p></o:p></span></p>
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lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span
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Dalarna /Dalarna University<o:p></o:p></span></b></p>
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<pre class="moz-signature" cols="72">--
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Principal
Thermal Energy System Specialists, LLC
3 North Pinckney Street - suite 202
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