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Marcus,<br>
Vertical walls should have a slope of 90, not a slope of zero.
Slopes are measured from the horizontal. A zero slope indicates a
horizontal surface.<br>
Kind regards,<br>
david<br>
<br>
<br>
On 7/21/2011 08:01, Marcus.Joppich wrote:
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<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"
lang="EN-US">Hello David,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"
lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"
lang="EN-US">thank you for your answer. I´ve tried it. The
following steps were performed:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"
lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"
lang="EN-US">I defined 6 orientations of walls to external:
Northwest (Wall to external)/ Southeast (Wall to external)/
Northeast (Wall to external)/ Northwest with a slope of 37
degrees (sloping roof)/ Southeast with a slope of 37 degrees
(sloping roof)/ Northeast with a slope of 37 degrees
(sloping roof).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"
lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"
lang="EN-US">At Type109 I defined 6 surfaces with the
following parameters:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"
lang="EN-US">Surface1/Slope of surface 0/Azimuth of surface
225<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"
lang="EN-US">Surface2/Slope of surface 0/Azimuth of surface
135<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"
lang="EN-US">Surface3/Slope of surface 0/Azimuth of surface
315<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"
lang="EN-US">Surface4/Slope of surface 37/Azimuth of surface
225<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"
lang="EN-US">Surface5/Slope of surface 37/Azimuth of surface
135<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"
lang="EN-US">Surface6/Slope of surface 37/Azimuth of surface
315<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"
lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"
lang="EN-US">Then I connected the outputs with the inputs by
Type56.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"
lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"
lang="EN-US">Is it the right way?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"
lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="line-height: 200%;"><span
style="color: rgb(31, 73, 125);" lang="EN-US">I get a fatal
error: “Error in automatic heat transfer calculation for
surface 1 or its adjacent surface!: Automatic heat
transfer calculation is only allowed on surfaces within a
zone. Please check building input file (.bui)”, but I think
it has a different reason.<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height: 200%;"><span
style="color: rgb(31, 73, 125);" lang="EN-US">Thank you for
your help.<o:p></o:p></span></p>
<p class="MsoNormal" style="line-height: 200%;"><span
style="color: rgb(31, 73, 125);" lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="line-height: 200%;"><span
style="color: rgb(31, 73, 125);" lang="EN-US">Regards,
Marcus<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"
lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"
lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);"
lang="EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size: 10pt;
font-family:
"Tahoma","sans-serif"; color:
windowtext;">Von:</span></b><span style="font-size:
10pt; font-family:
"Tahoma","sans-serif"; color:
windowtext;"> David BRADLEY
[<a class="moz-txt-link-freetext" href="mailto:d.bradley@tess-inc.com">mailto:d.bradley@tess-inc.com</a>]
<br>
<b>Gesendet:</b> Mittwoch, 20. Juli 2011 19:12<br>
<b>An:</b> Marcus.Joppich<br>
<b>Cc:</b> <a class="moz-txt-link-abbreviated" href="mailto:trnsys-users@cae.wisc.edu">trnsys-users@cae.wisc.edu</a><br>
<b>Betreff:</b> Re: [TRNSYS-users] sloping surfaces<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Marcus,<br>
It depends somewhat on what component you are using to model
the attic. However, almost without exception, you need to
define the slope and azimuth of the attic roof surfaces in
your weather component (Type15 probably) and then pass the
appropriate solar radiation outputs from that component to the
appropriate inputs of your building component.<br>
Regards,<br>
David<br>
<br>
<br>
On 7/20/2011 06:57, Marcus.Joppich wrote: <o:p></o:p></p>
<p class="MsoNormal">Hello TRNSYS-users,<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">I try to simulate few
rooms in an attic. I don´t understand how I can describe a
sloping surface (like a sloping roof) with TRNSYS. Maybe you
can help me.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">Thanks for your time.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">Marcus</span><o:p></o:p></p>
<pre><o:p> </o:p></pre>
<pre><o:p> </o:p></pre>
<pre>_______________________________________________<o:p></o:p></pre>
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<br>
<o:p></o:p></span></p>
<pre>-- <o:p></o:p></pre>
<pre>***************************<o:p></o:p></pre>
<pre>David BRADLEY<o:p></o:p></pre>
<pre>Principal<o:p></o:p></pre>
<pre>Thermal Energy Systems Specialists, LLC<o:p></o:p></pre>
<pre>22 North Carroll Street - suite 370<o:p></o:p></pre>
<pre>Madison, WI 53703 USA<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>P:+1.608.274.2577<o:p></o:p></pre>
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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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