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Joke,<br>
I would recommend that you use Window5 to generate a window with the
correct (or as near as you can make it) u-value and g-value that you
have been given. Usually, you can get close by starting with the
generic glass types that are in the Window5 library and by playing with
the glass and gas layers. Once you have generated the DOE-2 report from
Window5, the items that you read from the Window5 "result" screen and
add by hand at the end of the w4-lib.dat file are ONLY for
informational display in TRNBuild. The frame u-value information in the
DOE-2 Window5 report/w4lib.dat file is ignored by TRNBuild so you need
to enter that in the window typemanager. There is a handy Figure in the
TRNBuild/Type56 manual that shows all the information that Type56 pays
attention to from the w4lib.dat file.<br>
Best,<br>
David<br>
<br>
<br>
On 7/5/2010 03:27, Joke De Beuckelaer wrote:
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<p class="MsoNormal"><a moz-do-not-send="true" name="OLE_LINK1"></a><a
moz-do-not-send="true" name="OLE_LINK2">Dear
Trnsys-users,<o:p></o:p></a></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-US">I’ve some question concerning
windows
in Trnsys. When you want to implement a window (with a known U-value
and
g-value) but there is no corresponding window in the library, can you
somewhere
adapt the U-value and g-value?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I know you can use window5 to
make a new
window in your library, but sometimes I don’t know the layers of my
window but just the U-value en g-value. Can you adapt perhaps the
values of the
additional heat resistance of an external shading device to achieve the
wanted
value? Or adapt the U-value of the profile? <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">When you do use window5: you
have to
introduce a profile too. But in trnsys, you select the created window
under “Glazing”.
Do you then still have to introduce the U-value of the profile in
Trnsys or …
?<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">Thanks in advance,<o:p></o:p></span></p>
<p class="MsoNormal" style=""><span
style="font-size: 10pt; font-family: "Verdana","sans-serif";"
lang="EN-GB">
Joke De Beuckelaer </span><span
style="font-size: 12pt; font-family: "Times New Roman","serif";"
lang="EN-US"><br>
</span><span
style="font-size: 10pt; font-family: "Verdana","sans-serif";"
lang="EN-GB">
project engineer <br>
</span><span
style="font-size: 7.5pt; font-family: "Arial","sans-serif"; color: gray;"
lang="EN-GB"><br>
<br>
</span><o:p></o:p></p>
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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
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