Dear all;<br><br>I would like to convert weather file format from epw to tm2. I'm wondering if anyone has an information about it, <br><br>Thanks a lot.<br><br><br><br><div class="gmail_quote">On Tue, Mar 29, 2011 at 4:51 AM, <span dir="ltr"><<a href="mailto:trnsys-users-request@cae.wisc.edu">trnsys-users-request@cae.wisc.edu</a>></span> wrote:<br>
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<br>Today's Topics:<br>
<br>
1. Re: Real-time simulation (Matt Duffy)<br>
2. Re: Real-time simulation (David BRADLEY)<br>
3. TRNSYS3D PLUGIN ERR IN GOOGLE SKETCHUP (Jay Zhu)<br>
4. problem about type 121b auxiliary heating (Jay Zhu)<br>
5. beam radiation warnings (Ben Elliston)<br>
<br><br>---------- Forwarded message ----------<br>From: "Matt Duffy" <<a href="mailto:duffy@tess-inc.com">duffy@tess-inc.com</a>><br>To: "Santiago Naranjo Palacio" <<a href="mailto:sn377@cornell.edu">sn377@cornell.edu</a>>, <a href="mailto:trnsys-users@cae.wisc.edu">trnsys-users@cae.wisc.edu</a><br>
Date: Mon, 28 Mar 2011 15:52:49 -0500 (CDT)<br>Subject: Re: [TRNSYS-users] Real-time simulation<br><br>Dear Santiago Naranjo Palacio,<br><br>Perhaps I am mistaken, but I vaguely remember a presentation at IBPSA Building Simulation 2009 from a gentleman at CSTB who was doing real-time simulation with TRNSYS? Does anyone else remember that? If not, I can ask my colleague upon your request.<br>
<br>Also, TRNSYS can be paused by pressing the "F7" key; TRNSYS also pauses when you run TRNSYS from the compiler in Debug mode and you step through the source code. Thus, I do believe there is a way to do this, but I am unfortunately not sure how.<br>
<br>Best regards,<br><br>Matt Duffy<br><br><div style="background-repeat: repeat-x;"><b>----- Original Message -----</b><br><b>From:</b> "Santiago Naranjo Palacio" <<a href="mailto:sn377@cornell.edu" target="_blank">sn377@cornell.edu</a>> <br>
<b>Sent:</b> Thu, March 24, 2011 9:11<br><b>Subje!
ct:</b> [TRNSYS-users] Real-time simulation<br><br><table width="100%" cellspacing="5"><tbody><tr><td><div><div><i>Dear TRNSYS Users,</i></div><div> </div><div>Is there a way to run TRNSYS on real-time? I am working on a project where a real controller and a TRNSYS project have to communicate with each other. One of my problems right now is trying to force TRNSYS to run on real-time so that the commands from/to the controller are received at the appropiate time. If this is not possible, is there a way in which TRNSYS can be externally paused after each TIME STEP and restarted after receiving an external signal? (I figure this would be another way of forcing the system to run on real-time).</div>
<div> </div><div>Thanks! <br clear="all"><br>-- <br>Santiago Naranjo Palacio</div><hr noshade size="1"><pre>_______________________________________________
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</pre></div></td></tr></tbody></table></div><br><br>---------- Forwarded message ----------<br>From: David BRADLEY <<a href="mailto:d.bradley@tess-inc.com">d.bradley@tess-inc.com</a>><br>To: Santiago Naranjo Palacio <<a href="mailto:sn377@cornell.edu">sn377@cornell.edu</a>><br>
Date: Mon, 28 Mar 2011 16:28:21 -0500<br>Subject: Re: [TRNSYS-users] Real-time simulation<br>
<div text="#000000" bgcolor="#ffffff">
Santiago,<br>
I'm not sure that you need to do anything special. The TRNSYS
kernel (the brains that determine when convergence has been reached)
call the Types and then just waits until the Type hits its "return"
statement (returning control to the kernel). The kernel will not
increment the timestep until all of the outputs from Types have
converged (stopped changing from one iteration to the next). I
assume that you have developed some Type in your simulation that
communicates with your controller. The kernel should call that Type
and then wait until the controller is ready to make its decision.
The controller's decision should get placed into the Type's outputs
and then the Type should return control to the kernel as all Types
do. The one thing you might do a little differently is to prevent
your Type/controller from trying to make a new decision at every
simulation iteration; allow it to make one control decision per time
step and then hang on to that control decision until the next time
step. You can do that either by having your Type only process at the
"post convergence" call or it can make its decision on the first
iteration of a new time step and then return without reevaluating at
all other iterations.<br>
Best,<br>
David<br>
<br>
<br>
On 3/24/2011 09:11, Santiago Naranjo Palacio wrote:
<blockquote type="cite">
<div><i>Dear TRNSYS Users,</i></div>
<div><i></i> </div>
<div>Is there a way to run TRNSYS on real-time? I am working on a
project where a real controller and a TRNSYS project have to
communicate with each other. One of my problems right now is
trying to force TRNSYS to run on real-time so that the commands
from/to the controller are received at the appropiate time. If
this is not possible, is there a way in which TRNSYS can be
externally paused after each TIME STEP and restarted after
receiving an external signal? (I figure this would be another
way of forcing the system to run on real-time). </div>
<div> </div>
<div>Thanks! <br clear="all">
<br>
-- <br>
Santiago Naranjo Palacio</div>
<pre><fieldset></fieldset>
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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">+1.608.274.2577</a>
F:<a href="tel:%2B1.608.278.1475" target="_blank">+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>---------- Forwarded message ----------<br>From: Jay Zhu <<a href="mailto:zhujiang1124@gmail.com">zhujiang1124@gmail.com</a>><br>To: <a href="mailto:trnsys-users@cae.wisc.edu">trnsys-users@cae.wisc.edu</a><br>
Date: Mon, 28 Mar 2011 20:01:43 -0500<br>Subject: [TRNSYS-users] TRNSYS3D PLUGIN ERR IN GOOGLE SKETCHUP<br>Hello everyone:<br>
i got the same err when i reopen the previous work each time, and i had
the same problem in other computers also. would you please give me some
suggestion about this plugin err?<br>
<br>
<br>
NoMethodError<br>
undefined method `input_object' for nil:NilClass<br>
<br>
BACKTRACE:<br>
C:/Program Files (x86)/Google/Google SketchUp 8/Plugins/Trnsys3d/lib/interfaces/Zone.rb:268:in `cleanup_entity'<br>
C:/Program Files (x86)/Google/Google SketchUp 8/Plugins/Trnsys3d/lib/interfaces/Zone.rb:181:in `each'<br>
C:/Program Files (x86)/Google/Google SketchUp 8/Plugins/Trnsys3d/lib/interfaces/Zone.rb:181:in `cleanup_entity'<br>
C:/Program Files (x86)/Google/Google SketchUp 8/Plugins/Trnsys3d/lib/interfaces/Zone.rb:179:in `each'<br>
C:/Program Files (x86)/Google/Google SketchUp 8/Plugins/Trnsys3d/lib/interfaces/Zone.rb:179:in `cleanup_entity'<br>
C:/Program Files (x86)/Google/Google SketchUp 8/Plugins/Trnsys3d/lib/interfaces/ModelInterface.rb:221:in `check_model'<br>
C:/Program Files (x86)/Google/Google SketchUp 8/Plugins/Trnsys3d/lib/Bag.rb:87:in `each'<br>
C:/Program Files (x86)/Google/Google SketchUp 8/Plugins/Trnsys3d/lib/Bag.rb:87:in `each'<br>
C:/Program Files (x86)/Google/Google SketchUp 8/Plugins/Trnsys3d/lib/interfaces/ModelInterface.rb:221:in `check_model'<br>
C:/Program Files (x86)/Google/Google SketchUp 8/Plugins/Trnsys3d/lib/interfaces/ModelInterface.rb:212:in `update_model'<br>
C:/Program Files (x86)/Google/Google SketchUp 8/Plugins/Trnsys3d/lib/interfaces/ModelInterface.rb:118:in `draw_model'<br>
C:/Program Files (x86)/Google/Google SketchUp 8/Plugins/Trnsys3d/lib/ModelManager.rb:183:in `open_input_file'<br>
C:/Program Files (x86)/Google/Google SketchUp 8/Plugins/Trnsys3d/lib/ModelManager.rb:66:in `attach_input_file'<br>
C:/Program Files (x86)/Google/Google SketchUp 8/Plugins/Trnsys3d/lib/ModelManager.rb:58:in `start'<br>
C:/Program Files (x86)/Google/Google SketchUp 8/Plugins/Trnsys3d/lib/PluginManager.rb:138:in `new_model'<br>
C:/Program Files (x86)/Google/Google SketchUp 8/Plugins/Trnsys3d/lib/PluginManager.rb:64:in `start'<br>
C:/Program Files (x86)/Google/Google SketchUp 8/Plugins/Trnsys3d/lib/PluginManager.rb:215<br>
C:/Program Files (x86)/Google/Google SketchUp 8/Plugins/Trnsys3d/lib/Startup.rb:32:in `load'<br>
C:/Program Files (x86)/Google/Google SketchUp 8/Plugins/Trnsys3d/lib/Startup.rb:32<br>
C:/Program Files (x86)/Google/Google SketchUp 8/Tools/extensions.rb:36:in `require'<br>
C:/Program Files (x86)/Google/Google SketchUp 8/Tools/extensions.rb:36:in `load'<br>
C:/Program Files (x86)/Google/Google SketchUp 8/Plugins/Trnsys3d.rb:18:in `register_extension'<br>
C:/Program Files (x86)/Google/Google SketchUp 8/Plugins/Trnsys3d.rb:18<br>
<br><br>---------- Forwarded message ----------<br>From: Jay Zhu <<a href="mailto:zhujiang1124@gmail.com">zhujiang1124@gmail.com</a>><br>To: <a href="mailto:trnsys-users@cae.wisc.edu">trnsys-users@cae.wisc.edu</a><br>
Date: Mon, 28 Mar 2011 22:35:56 -0500<br>Subject: [TRNSYS-users] problem about type 121b auxiliary heating<br>Hey There:<br>I tried to use unitary air conditioner type 651 (for cooling) and type 121 auxiliary heating (for heating) to connect with type 56 house controlled by thermostat type 108 , i found a very curious result after testing these types by adding and deleting them <br>
<br>First time, When i totally delete the type 121, make the system runs, the simulation obvious will show the cooling only.<br>Second time, when i add the type 121 auxiliary heating, but i set heating point of the thermostat as low as 5 C, it means the heating will still not running based on the Tampa, Fl weather condition. So the result will shows the cooling only also without heating. <br>
<br>it is supposed the plot for these two cases should be exactly same in my opinion. However, cooling consumption of the second case with type 121(but i set it not work at all ) is lower than the first case, and the plot for the room temperature is also different. <br>
<br>Am i wrong somewhere ? i am so confused for this problem. Thank you in advance <br><br>I changed my simulation to air source heat pump now, but i still wanna know what the exactly problem is for the two simulation cases <br>
<br><br>
<br><br>---------- Forwarded message ----------<br>From: Ben Elliston <<a href="mailto:bje@air.net.au">bje@air.net.au</a>><br>To: <a href="mailto:trnsys-users@cae.wisc.edu">trnsys-users@cae.wisc.edu</a><br>Date: Tue, 29 Mar 2011 19:51:37 +1100<br>
Subject: [TRNSYS-users] beam radiation warnings<br>Hi all.<br>
<br>
I am using TRNSYS via NREL's Solar Advisor Model. I've supplied SAM<br>
with my own TMY file constructed using locally sourced weather and<br>
solar irradiance data. TRNSYS produces 400+ warnings like this:<br>
<br>
*** Warning at time : 9.000000<br>
Generated by Unit : 6<br>
Generated by Type : 15<br>
Message : The calculated value of the beam radiation exceeded the maximum possible beam radiation for this timestep. The beam radiation has been set to the extraterrestrial radiation for this timestep.<br>
<br>
So that I can troubleshoot my TMY file (or perhaps the resultant<br>
TRNSYS input file), can anyone explain what the warning means,<br>
precisely? What could trigger it?<br>
<br>
Thanks, Ben<br>
<br>
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<br></blockquote></div><br>