<div>Dear all,<br> <br> Please tell me how to set an equation:<br> <br> OF=1, when CO2%>1000<br> <br> OF = 0, when CO2%< 700</div>
<div> </div>
<div> I tried to use LT and GE, but e.g. it only realize OF = 1, when CO2%>1000 and OF = 0, when CO2% < 1000. </div>
<div> </div>
<div> I need </div>
<div> OF=1, when CO2%>1000<br> <br> OF = 0, when CO2%< 700<br> <br> Thanks in advance!<br> <br> wang <br><br></div>
<div class="gmail_quote">在 2011年11月2日 下午12:19， <span dir="ltr"><<a href="mailto:trnsys-users-request@cae.wisc.edu">trnsys-users-request@cae.wisc.edu</a>></span>写道：<br>
<blockquote style="BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex" class="gmail_quote">Send TRNSYS-users mailing list submissions to<br> <a href="mailto:trnsys-users@cae.wisc.edu">trnsys-users@cae.wisc.edu</a><br>
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<br>When replying, please edit your Subject line so it is more specific<br>than "Re: Contents of TRNSYS-users digest..."<br><br>Today's Topics:<br><br> 1. EQUATION (??)<br> 2. Re: air Density in TRNBuild (Mohamed Ayman)<br>
<br><br>---------- 已转发邮件 ----------<br>From: 王洋 <<a href="mailto:wanghongyang1767@gmail.com">wanghongyang1767@gmail.com</a>><br>To: <a href="mailto:trnsys-users@cae.wisc.edu">trnsys-users@cae.wisc.edu</a><br>Date: Wed, 2 Nov 2011 12:16:37 +0100<br>
Subject: [TRNSYS-users] EQUATION<br>
<div>Dear all,</div>
<div> </div>
<div> Please tell me how to set an equation:</div>
<div> </div>
<div> OF=1, when CO2%>1000</div>
<div> </div>
<div> OF = 0, when CO2%< 700</div>
<div> </div>
<div> Thanks!</div>
<div> </div>
<div> wang <br><br></div>
<div class="gmail_quote">在 2011年11月2日 下午12:14，王洋 <span dir="ltr"><<a href="mailto:wanghongyang1767@gmail.com" target="_blank">wanghongyang1767@gmail.com</a>></span>写道：<br>
<blockquote style="BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex" class="gmail_quote">
<div>Dear all,</div>
<div> </div>
<div> Which experts can tell me a question about air density?</div>
<div> </div>
<div> In TRNbuild PROPERTIES about air density 1.2 kg/m^3: Is it a initial value? If outdoor temperature changes in TrnFlow, this air density value will change as the teperature or it is a constant?</div>
<div> </div>
<div> Thanks!</div>
<div> </div>
<div> wang</div>
<div><br><br> </div>
<div class="gmail_quote">2011/11/1 <span dir="ltr"><<a href="mailto:trnsys-users-request@cae.wisc.edu" target="_blank">trnsys-users-request@cae.wisc.edu</a>></span><br>
<blockquote style="BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex" class="gmail_quote">Send TRNSYS-users mailing list submissions to<br> <a href="mailto:trnsys-users@cae.wisc.edu" target="_blank">trnsys-users@cae.wisc.edu</a><br>
<br>To subscribe or unsubscribe via the World Wide Web, visit<br> <a href="https://mailman.cae.wisc.edu/listinfo/trnsys-users" target="_blank">https://mailman.cae.wisc.edu/listinfo/trnsys-users</a><br>or, via email, send a message with subject or body 'help' to<br>
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<br>When replying, please edit your Subject line so it is more specific<br>than "Re: Contents of TRNSYS-users digest..."<br><br>Today's Topics:<br><br> 1. Re: Information (David BRADLEY)<br><br><br>---------- 已转发邮件 ----------<br>
From: David BRADLEY <<a href="mailto:d.bradley@tess-inc.com" target="_blank">d.bradley@tess-inc.com</a>><br>To: "Adriana Gómez Aldana" <<a href="mailto:adrigomezaldana@gmail.com" target="_blank">adrigomezaldana@gmail.com</a>><br>
Date: Tue, 01 Nov 2011 11:35:52 -0500<br>Subject: Re: [TRNSYS-users] Information<br>
<div text="#000000" bgcolor="#FFFFFF">Adriana,<br> I had thought that I sent a response about this. In case it did not get to you, here it is again:<br><br>...<br> It would help to know a bit more about the configuration of your system: what are you drying, is the material in a big lump, is it spread out on shelves, is it moving, does it occupy most of the available space in the chamber or a comparatively small part of the space, etc.)<br>
<br> I think you could probably use the Type56 multi-zone building model for the drying chamber itself. <br><br> I would guess that you would need to write a new model for the material that you are drying. If the material is quite spread-out then this might be easily enough characterized by a first-order differential equation and you even might be able to use Tess Type693. Type693 is intended to model a thermal lumped capacitance that heats and cools according to a first-order differential equation but I imagine that pricipals are basically the same whether you are talking about thermal capacitance or moisture capacitance. <br>
<br> If the product is not spread out, if important moisture gradients develop within it as it dries, or if its drying process is exothermic (like it is for compost) then I think you would need to write your own model or collaborate with someone who could write the model for you. In order to write the model you would need to have access to a FORTRAN compiler such as Intel Visual Fortran v11.x<br>
<br> Once you have the model of the drying substance, you would connect its moisture loss to a moisture gain input of the building (drying chamber) model.<br><br>Kind regards,<br> David<br><br>On 10/30/2011 20:45, Adriana Gómez Aldana wrote:
<blockquote type="cite">
<div class="gmail_quote"><br><br>
<div style="BACKGROUND-COLOR: rgb(255,255,255); FONT-FAMILY: arial, helvetica, sans-serif; FONT-SIZE: 12px">
<div style="FONT-FAMILY: arial, helvetica, sans-serif; FONT-SIZE: 12px"><font face="'PrimaSans
BT,Verdana,sans-serif'">Good Morning,</font></div>
<div style="FONT-FAMILY: arial, helvetica, sans-serif; FONT-SIZE: 12px"><font face="'PrimaSans
BT,Verdana,sans-serif'"><br></font></div>
<div style="FONT-FAMILY: arial, helvetica, sans-serif; FONT-SIZE: 12px"><font face="'PrimaSans
BT,Verdana,sans-serif'">I am a TRNSYS user since it is one of the tools for my phD thesis. Currently, I am working in a solar drying problem and I would like to know if there is a special module to simulate the drying chamber. If it is possible to acquire this module, I would be very thankful if you can explain me how is the procedure to access it. </font></div>
<div style="FONT-FAMILY: arial, helvetica, sans-serif; FONT-SIZE: 12px"><font face="'PrimaSans
BT,Verdana,sans-serif'"><br></font></div>
<div style="FONT-FAMILY: arial, helvetica, sans-serif; FONT-SIZE: 12px"><font face="'PrimaSans
BT,Verdana,sans-serif'">Thanks for your attention,</font></div>
<div style="FONT-FAMILY: arial, helvetica, sans-serif; FONT-SIZE: 12px"><font face="'PrimaSans
BT,Verdana,sans-serif'"><br></font></div>
<div style="FONT-FAMILY: arial, helvetica, sans-serif; FONT-SIZE: 12px"><font face="'PrimaSans
BT,Verdana,sans-serif'">Adriana Gómez</font></div>
<div style="FONT-FAMILY: arial, helvetica, sans-serif; FONT-SIZE: 12px"><font face="'PrimaSans
BT,Verdana,sans-serif'">phD Student - Engineering Department</font></div>
<div style="FONT-FAMILY: arial, helvetica, sans-serif; FONT-SIZE: 12px"><font face="'PrimaSans BT,Verdana,sans-serif'">Universidad de los Andes</font></div>
<div style="FONT-FAMILY: arial, helvetica, sans-serif; FONT-SIZE: 12px"><font face="'PrimaSans
BT,Verdana,sans-serif'">Bogotá, Colombia</font></div></div><br><br></div><br><br>
<fieldset></fieldset> <br><pre>_______________________________________________
TRNSYS-users mailing list
<a href="mailto:TRNSYS-users@cae.wisc.edu" target="_blank">TRNSYS-users@cae.wisc.edu</a>
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</pre></blockquote><br><pre cols="72">--
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
Madison, WI 53703 USA
P:<a href="tel:%2B1.608.274.2577" target="_blank" value="+16082742577">+1.608.274.2577</a>
F:<a href="tel:%2B1.608.278.1475" target="_blank" value="+16082781475">+1.608.278.1475</a>
<a href="mailto:d.bradley@tess-inc.com" target="_blank">d.bradley@tess-inc.com</a>
<a href="http://www.tess-inc.com/" target="_blank">http://www.tess-inc.com</a>
<a href="http://www.trnsys.com/" target="_blank">http://www.trnsys.com</a></pre></div><br>_______________________________________________<br>TRNSYS-users mailing list<br><a href="mailto:TRNSYS-users@cae.wisc.edu" target="_blank">TRNSYS-users@cae.wisc.edu</a><br>
<a href="https://mailman.cae.wisc.edu/listinfo/trnsys-users" target="_blank">https://mailman.cae.wisc.edu/listinfo/trnsys-users</a><br><br></blockquote></div><br></blockquote></div><br><br><br>---------- 已转发邮件 ----------<br>
From: Mohamed Ayman <<a href="mailto:ayman.mohamed@aalto.fi">ayman.mohamed@aalto.fi</a>><br>To: 王洋 <<a href="mailto:wanghongyang1767@gmail.com">wanghongyang1767@gmail.com</a>>, "<a href="mailto:trnsys-users@cae.wisc.edu">trnsys-users@cae.wisc.edu</a>" <<a href="mailto:trnsys-users@cae.wisc.edu">trnsys-users@cae.wisc.edu</a>><br>
Date: Wed, 2 Nov 2011 11:18:54 +0000<br>Subject: Re: [TRNSYS-users] air Density in TRNBuild<br>
<div lang="FI" vlink="purple" link="blue">
<div>
<p class="MsoNormal"><span style="FONT-FAMILY: 'Times New Roman','serif'" lang="EN-US">Hi Wang<u></u><u></u></span></p>
<p class="MsoNormal"><span style="FONT-FAMILY: 'Times New Roman','serif'" lang="EN-US">The </span><span style="FONT-FAMILY: 'Times New Roman','serif'" lang="EN-US">air density changes with temperature in Trnbuild.<u></u><u></u></span></p>
<p class="MsoNormal"><span style="FONT-FAMILY: 'Times New Roman','serif'" lang="EN-US">Best Regards<u></u><u></u></span></p>
<p class="MsoNormal"><span style="FONT-FAMILY: 'Times New Roman','serif'" lang="EN-US">Ayman Mohamed</span><span style="FONT-FAMILY: 'Times New Roman','serif'" lang="EN-US"><u></u><u></u></span></p>
<p class="MsoNormal"><span style="COLOR: #1f497d; FONT-SIZE: 11pt" lang="EN-US"><u></u> <u></u></span></p>
<div style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; PADDING-RIGHT: 0cm; BORDER-TOP: #b5c4df 1pt solid; BORDER-RIGHT: medium none; PADDING-TOP: 3pt">
<p class="MsoNormal"><b><span style="FONT-SIZE: 10pt" lang="EN-US">From:</span></b><span style="FONT-SIZE: 10pt" lang="EN-US"> <a href="mailto:trnsys-users-bounces@cae.wisc.edu" target="_blank">trnsys-users-bounces@cae.wisc.edu</a> [mailto:<a href="mailto:trnsys-users-bounces@cae.wisc.edu" target="_blank">trnsys-users-bounces@cae.wisc.edu</a>] <b>On Behalf Of </b>??<br>
<b>Sent:</b> Wednesday, November 02, 2011 1:14 PM<br><b>To:</b> <a href="mailto:trnsys-users@cae.wisc.edu" target="_blank">trnsys-users@cae.wisc.edu</a><br><b>Subject:</b> [TRNSYS-users] air Density in TRNBuild<u></u><u></u></span></p>
</div>
<p class="MsoNormal"><u></u> <u></u></p>
<div>
<p class="MsoNormal">Dear all,<u></u><u></u></p></div>
<div>
<p class="MsoNormal"> <u></u><u></u></p></div>
<div>
<p class="MsoNormal"> Which experts can tell me a question about air density?<u></u><u></u></p></div>
<div>
<p class="MsoNormal"> <u></u><u></u></p></div>
<div>
<p class="MsoNormal"> In TRNbuild PROPERTIES about air density 1.2 kg/m^3: Is it a initial value? If outdoor temperature changes in TrnFlow, this air density value will change as the teperature or it is a constant?<u></u><u></u></p>
</div>
<div>
<p class="MsoNormal"> <u></u><u></u></p></div>
<div>
<p class="MsoNormal"> Thanks!<u></u><u></u></p></div>
<div>
<p class="MsoNormal"> <u></u><u></u></p></div>
<div>
<p class="MsoNormal"> wang<u></u><u></u></p></div>
<div>
<p class="MsoNormal"><br><br> <u></u><u></u></p></div>
<div>
<p class="MsoNormal">2011/11/1 <<a href="mailto:trnsys-users-request@cae.wisc.edu" target="_blank">trnsys-users-request@cae.wisc.edu</a>><u></u><u></u></p>
<p class="MsoNormal">Send TRNSYS-users mailing list submissions to<br> <a href="mailto:trnsys-users@cae.wisc.edu" target="_blank">trnsys-users@cae.wisc.edu</a><br><br>To subscribe or unsubscribe via the World Wide Web, visit<br>
<a href="https://mailman.cae.wisc.edu/listinfo/trnsys-users" target="_blank">https://mailman.cae.wisc.edu/listinfo/trnsys-users</a><br>or, via email, send a message with subject or body 'help' to<br> <a href="mailto:trnsys-users-request@cae.wisc.edu" target="_blank">trnsys-users-request@cae.wisc.edu</a><br>
<br>You can reach the person managing the list at<br> <a href="mailto:trnsys-users-owner@cae.wisc.edu" target="_blank">trnsys-users-owner@cae.wisc.edu</a><br><br>When replying, please edit your Subject line so it is more specific<br>
than "Re: Contents of TRNSYS-users digest..."<br><br>Today's Topics:<br><br> 1. Re: Information (David BRADLEY)<br><br><br>---------- <span lang="ZH-CN">已转发邮件</span> ----------<br>From: David BRADLEY <<a href="mailto:d.bradley@tess-inc.com" target="_blank">d.bradley@tess-inc.com</a>><br>
To: "Adriana Gómez Aldana" <<a href="mailto:adrigomezaldana@gmail.com" target="_blank">adrigomezaldana@gmail.com</a>><br>Date: Tue, 01 Nov 2011 11:35:52 -0500<br>Subject: Re: [TRNSYS-users] Information<u></u><u></u></p>
<div>
<p class="MsoNormal">Adriana,<br> I had thought that I sent a response about this. In case it did not get to you, here it is again:<br><br>...<br> It would help to know a bit more about the configuration of your system: what are you drying, is the material in a big lump, is it spread out on shelves, is it moving, does it occupy most of the available space in the chamber or a comparatively small part of the space, etc.)<br>
<br> I think you could probably use the Type56 multi-zone building model for the drying chamber itself. <br><br> I would guess that you would need to write a new model for the material that you are drying. If the material is quite spread-out then this might be easily enough characterized by a first-order differential equation and you even might be able to use Tess Type693. Type693 is intended to model a thermal lumped capacitance that heats and cools according to a first-order differential equation but I imagine that pricipals are basically the same whether you are talking about thermal capacitance or moisture capacitance. <br>
<br> If the product is not spread out, if important moisture gradients develop within it as it dries, or if its drying process is exothermic (like it is for compost) then I think you would need to write your own model or collaborate with someone who could write the model for you. In order to write the model you would need to have access to a FORTRAN compiler such as Intel Visual Fortran v11.x<br>
<br> Once you have the model of the drying substance, you would connect its moisture loss to a moisture gain input of the building (drying chamber) model.<br><br>Kind regards,<br> David<br><br>On 10/30/2011 20:45, Adriana Gómez Aldana wrote: <u></u><u></u></p>
<div>
<p style="MARGIN-BOTTOM: 12pt" class="MsoNormal"><u></u> <u></u></p>
<div>
<div>
<p style="BACKGROUND: white" class="MsoNormal"><span style="FONT-SIZE: 9pt">Good Morning,</span><span style="FONT-SIZE: 9pt"><u></u><u></u></span></p></div>
<div>
<p style="BACKGROUND: white" class="MsoNormal"><span style="FONT-SIZE: 9pt"><u></u> <u></u></span></p></div>
<div>
<p style="BACKGROUND: white" class="MsoNormal"><span style="FONT-SIZE: 9pt">I am a TRNSYS user since it is one of the tools for my phD thesis. Currently, I am working in a solar drying problem and I would like to know if there is a special module to simulate the drying chamber. If it is possible to acquire this module, I would be very thankful if you can explain me how is the procedure to access it. </span><span style="FONT-SIZE: 9pt"><u></u><u></u></span></p>
</div>
<div>
<p style="BACKGROUND: white" class="MsoNormal"><span style="FONT-SIZE: 9pt"><u></u> <u></u></span></p></div>
<div>
<p style="BACKGROUND: white" class="MsoNormal"><span style="FONT-SIZE: 9pt">Thanks for your attention,</span><span style="FONT-SIZE: 9pt"><u></u><u></u></span></p></div>
<div>
<p style="BACKGROUND: white" class="MsoNormal"><span style="FONT-SIZE: 9pt"><u></u> <u></u></span></p></div>
<div>
<p style="BACKGROUND: white" class="MsoNormal"><span style="FONT-SIZE: 9pt">Adriana Gómez</span><span style="FONT-SIZE: 9pt"><u></u><u></u></span></p></div>
<div>
<p style="BACKGROUND: white" class="MsoNormal"><span style="FONT-SIZE: 9pt">phD Student - Engineering Department</span><span style="FONT-SIZE: 9pt"><u></u><u></u></span></p></div>
<div>
<p style="BACKGROUND: white" class="MsoNormal"><span style="FONT-SIZE: 9pt">Universidad de los Andes</span><span style="FONT-SIZE: 9pt"><u></u><u></u></span></p></div>
<div>
<p style="BACKGROUND: white" class="MsoNormal"><span style="FONT-SIZE: 9pt">Bogotá, Colombia</span><span style="FONT-SIZE: 9pt"><u></u><u></u></span></p></div></div>
<p style="MARGIN-BOTTOM: 12pt" class="MsoNormal"><u></u> <u></u></p></div>
<p style="MARGIN-BOTTOM: 12pt" class="MsoNormal"><br><br><u></u><u></u></p><pre>_______________________________________________<u></u><u></u></pre><pre>TRNSYS-users mailing list<u></u><u></u></pre><pre><a href="mailto:TRNSYS-users@cae.wisc.edu" target="_blank">TRNSYS-users@cae.wisc.edu</a><u></u><u></u></pre>
<pre><a href="https://mailman.cae.wisc.edu/listinfo/trnsys-users" target="_blank">https://mailman.cae.wisc.edu/listinfo/trnsys-users</a><u></u><u></u></pre>
<p class="MsoNormal"><br><br><u></u><u></u></p><pre>-- <u></u><u></u></pre><pre>***************************<u></u><u></u></pre><pre>David BRADLEY<u></u><u></u></pre><pre>Principal<u></u><u></u></pre><pre>Thermal Energy Systems Specialists, LLC<u></u><u></u></pre>
<pre>22 North Carroll Street - suite 370<u></u><u></u></pre><pre>Madison, WI 53703 USA<u></u><u></u></pre><pre><u></u> <u></u></pre><pre>P:<a href="tel:%2B1.608.274.2577" target="_blank">+1.608.274.2577</a><u></u><u></u></pre>
<pre>F:<a href="tel:%2B1.608.278.1475" target="_blank">+1.608.278.1475</a><u></u><u></u></pre><pre><a href="mailto:d.bradley@tess-inc.com" target="_blank">d.bradley@tess-inc.com</a><u></u><u></u></pre><pre><u></u> <u></u></pre>
<pre><a href="http://www.tess-inc.com/" target="_blank">http://www.tess-inc.com</a><u></u><u></u></pre><pre><a href="http://www.trnsys.com/" target="_blank">http://www.trnsys.com</a><u></u><u></u></pre></div>
<p style="MARGIN-BOTTOM: 12pt" class="MsoNormal"><br>_______________________________________________<br>TRNSYS-users mailing list<br><a href="mailto:TRNSYS-users@cae.wisc.edu" target="_blank">TRNSYS-users@cae.wisc.edu</a><br>
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<br></blockquote></div><br>