<div dir="ltr">Hi Asit,<div><br></div><div>I can see how sunlight would change the mean radiant temperature (MRT); however, the multizone manual says that TRNSYS only calculates MRT from longwave radiation (emitted from surrounding surfaces). I am using internal calculation -- simple model, which uses the formula:</div><div><br></div><div><img src="cid:ii_14f56465c2713e35" alt="Inline image 1" width="544" height="83"><br><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Aug 21, 2015 at 10:29 AM, <span dir="ltr"><<a href="mailto:trnsys-users-request@lists.onebuilding.org" target="_blank">trnsys-users-request@lists.onebuilding.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Send TRNSYS-users mailing list submissions to<br>
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<br>Today's Topics:<br>
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1. Re: TRNSYS-users Digest, Vol 128, Issue 23 (asit mishra)<br>
<br><br>---------- Forwarded message ----------<br>From: asit mishra <<a href="mailto:writeto.asit@gmail.com">writeto.asit@gmail.com</a>><br>To: <a href="mailto:trnsys-users@lists.onebuilding.org">trnsys-users@lists.onebuilding.org</a><br>Cc: <br>Date: Fri, 21 Aug 2015 19:58:49 +0530<br>Subject: Re: [TRNSYS-users] TRNSYS-users Digest, Vol 128, Issue 23<br><div dir="ltr"><div><div><div>Hello Brad,<br></div> I have observed this happening (while taking readings with a globe thermometer) for locations near fenestration in summer. So, if you have a significant percentage of wall area covered by fenestration, this could happen. I cannot explain the winter situation though.<br><br></div>Regards,<br></div>Asit<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Aug 21, 2015 at 5:45 PM, <span dir="ltr"><<a href="mailto:trnsys-users-request@lists.onebuilding.org" target="_blank">trnsys-users-request@lists.onebuilding.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Send TRNSYS-users mailing list submissions to<br>
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<br>Today's Topics:<br>
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1. Solar Thermal Collector outlet temperature (Arnaud Candaele)<br>
2. Mean Radiant Temperature More Extreme than Individual Surface<br>
Temps (Bradley Painting)<br>
<br><br>---------- Forwarded message ----------<br>From: Arnaud Candaele <<a href="mailto:arnaud.candaele@gmail.com" target="_blank">arnaud.candaele@gmail.com</a>><br>To: <a href="mailto:trnsys-users@cae.wisc.edu" target="_blank">trnsys-users@cae.wisc.edu</a><br>Cc: <br>Date: Fri, 21 Aug 2015 10:45:08 +0200<br>Subject: [TRNSYS-users] Solar Thermal Collector outlet temperature<br><div dir="ltr">Hi,<div><br></div><div>I'm trying to model a simple solar thermal collector, using Type1a.</div><div><br></div><div>I created a very simple test case, basically just taking the outdoor temperature and solar radiation, and plotting the outlet temperature.</div><div>The thing is, I'm changing the number of collectors in series, and the plotted outlet temperature doesn't change at all.</div><div>Isn't it supposed to change ?</div><div><br></div><div>Thanks for any help !</div><div><br></div><div>Arnaud</div></div>
<br><br>---------- Forwarded message ----------<br>From: Bradley Painting <<a href="mailto:paintingbr@appstate.edu" target="_blank">paintingbr@appstate.edu</a>><br>To: "<a href="mailto:trnsys-users@lists.onebuilding.org" target="_blank">trnsys-users@lists.onebuilding.org</a>" <<a href="mailto:trnsys-users@lists.onebuilding.org" target="_blank">trnsys-users@lists.onebuilding.org</a>><br>Cc: <br>Date: Thu, 20 Aug 2015 22:05:56 -0400<br>Subject: [TRNSYS-users] Mean Radiant Temperature More Extreme than Individual Surface Temps<br><div dir="ltr">Hello,<div><br></div><div>I am seeing poor thermal comfort and found that the mean radiant temperature of my air node is more extreme than the inside surface temperature of any individual wall or window comprising the airnode. It is much colder in the winter and much warmer in the summer. </div><div><br></div><div>This doesn't seem possible to me. Any idea what could cause this? Please see first the aggregate temperature range for all walls and windows, and then the mean radiant temperature for the same time period in the two respective graphs below. Thanks.</div><div><br clear="all"><div><br></div><div><img src="cid:ii_14f4dfbae409da62" alt="Inline image 1" height="422" width="544"><br></div><div><br></div><div><img src="cid:ii_14f4e005e50fcf85" alt="Inline image 2" height="426" width="544"><br></div><div><br></div>-- <br><div><div dir="ltr"><p style="color:rgb(136,136,136);font-size:13px;margin:0px"><font face="arial, helvetica, sans-serif" color="#073763">Brad Painting<br></font></p><p style="color:rgb(136,136,136);font-size:13px;margin:0px"><font face="arial, helvetica, sans-serif" color="#073763">Master of Science Candidate, Renewable Energy Engineering<br></font></p><p style="color:rgb(136,136,136);font-size:13px;margin:0px"><font face="arial, helvetica, sans-serif" color="#073763">Department of Technology & Environmental Design</font></p><p style="color:rgb(136,136,136);font-size:13px;margin:0px"><font face="arial, helvetica, sans-serif" color="#073763">Appalachian State University</font></p><p style="color:rgb(136,136,136);font-size:13px;margin:0px"><font face="arial, helvetica, sans-serif" color="#073763">Boone, NC 28608</font></p></div></div>
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<br></blockquote></div><br><br clear="all"><br>-- <br><div><div dir="ltr">Asit Kumar Mishra (11ME92R01)<br>Research Scholar<br>Refrigeration and Air Conditioning Lab<br>Department of Mechanical Engineering<br>IIT Kharagpur<br><br>a.<span><span style="background-color:rgb(255,0,0)"></span></span><br><br>@@@<br><b>The pen might not be mightier than the sword, but maybe the printing
press was heavier than the siege weapon. Just a few words can change
everything.</b><br>@@@<br><br><br><br></div></div>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature"><div dir="ltr"><p style="color:rgb(136,136,136);font-size:13px;margin:0px"><font color="#073763" face="arial, helvetica, sans-serif">Brad Painting<br></font></p><p style="color:rgb(136,136,136);font-size:13px;margin:0px"><font color="#073763" face="arial, helvetica, sans-serif">Master of Science Candidate, Renewable Energy Engineering<br></font></p><p style="color:rgb(136,136,136);font-size:13px;margin:0px"><font color="#073763" face="arial, helvetica, sans-serif">Department of Technology & Environmental Design</font></p><p style="color:rgb(136,136,136);font-size:13px;margin:0px"><font color="#073763" face="arial, helvetica, sans-serif">Appalachian State University</font></p><p style="color:rgb(136,136,136);font-size:13px;margin:0px"><font color="#073763" face="arial, helvetica, sans-serif">Boone, NC 28608</font></p></div></div>
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