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<div class="h5">Dear all,
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<div>I control OP(window opening factor) in order to make indoor CO2% lower than 0.001476 kg/kg (900 ppm) based on indoor CO2%. I used 2 simple methods:</div>
<div><br>1) OP=(LT(0.001476, CO2%))*1, i.e. if CO2%>0.001476, OP=1 windows will open completely;<br>2) I defined SCHEDULE 001: about every 1 or 2 hours, OP=1 during 15 mins, 6 cycles.<br> <br>BUT the two methods' results are very weird. to 1): OP is from 0 to 1 then to 0, there are 6 cycles during 24 h, 1 open/close cycle about only 6 mins, but FLTOZ: escaping air flow mass about 3000kg in all, CO2% is indeed lower than 900 ppm; Please see the ATTACHED 1st and 2nd, 3rd is the Online-plotter. FLTOZ can be seen from the *.out file 4th Attached.<br>
<br>to 2): SCHEDULE 001 is from 0 to 1, after 15 mins, from 1 to 0, there are also 6 cycles during 24 h, 1 open/close cycle about 15 mins, ALTHOUGH cycle time is bigger than 1): 6 mins, FLTOZ: escaping air flow mass about only 1550kg in all (weird), CO2% is higher than 900 ppm sometimes (weird); Please see the ATTACHED 5th and 6th, 7th is the Online-plotter. FLTOZ can be seen from the *.out file 8th Attached. SCHEDULE 001 can be found in TRNBUILD file.<br>
<br>I can't understand why 2)'s opening time is bigger than 1) and its open type is complete open during 15 mins (like a rectangle), but FLTOZ (escaping air flow mass about only 1550kg in all), CO2% is higher than 900 ppm sometimes , however, 1)'s open type is from 0 to 1 then to 0 only during 6 mins like a triangle, but FLTOZ (escaping air flow mass about 3000kg in all), CO2% is indeed lower than 900 ppm?<br>
<br>Please give me some advices! I think the problem may be TRNSYS and TRNFlow compatible reason.<br> <br>Many thanks in advance!<br> <br>Br.<br> <br>wang<br><br></div></div></div></div></div>
<div class="gmail_quote">2011/7/7 <span dir="ltr"><<a href="mailto:trnsys-users-request@cae.wisc.edu" target="_blank">trnsys-users-request@cae.wisc.edu</a>></span><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. Type 101-CLOSE error (Baboo Gowreesunker)<br> 2. type 15-2 weather file (Muhammad Farooq)<br>
<br><br>---------- 已转发邮件 ----------<br>From: Baboo Gowreesunker <<a href="mailto:Baboo.Gowreesunker@brunel.ac.uk" target="_blank">Baboo.Gowreesunker@brunel.ac.uk</a>><br>To: "<a href="mailto:trnsys-users@cae.wisc.edu" target="_blank">trnsys-users@cae.wisc.edu</a>" <<a href="mailto:trnsys-users@cae.wisc.edu" target="_blank">trnsys-users@cae.wisc.edu</a>><br>
Date: Thu, 7 Jul 2011 10:32:40 +0100<br>Subject: [TRNSYS-users] Type 101-CLOSE error<br>
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<p class="MsoNormal">Hi all<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">I’m running type 101 on a windows 7, 64 bit machine. <u></u><u></u></p>
<p class="MsoNormal">Everytime I run the simulation, it runs for a few time steps, and then I obtain the following error:<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Forrtl: severe (28): CLOSE error, Unit 10, file “Unknown” Image PC Routine Line Source libifcoremd.dll 03DBD3FE Unknown Unknown Unknown<u></u><u></u></p>
<p class="MsoNormal">Stack trace terminated abnormally.<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">I don’t believe its an error in the code because otherwise it would not run the few timesteps.<u></u><u></u></p>
<p class="MsoNormal">I don’t know whether it has to do with ‘limited access to C: drive’, where libifcoremd.dll is located.<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Can somebody help me ?<u></u><u></u></p>
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<p class="MsoNormal"><u></u> <u></u></p></div></div><br><br>---------- 已转发邮件 ----------<br>From: Muhammad Farooq <<a href="mailto:engr_farooq85@yahoo.com" target="_blank">engr_farooq85@yahoo.com</a>><br>To: <a href="mailto:trnsys-users@cae.wisc.edu" target="_blank">trnsys-users@cae.wisc.edu</a><br>
Date: Thu, 7 Jul 2011 14:56:45 +0100 (BST)<br>Subject: [TRNSYS-users] type 15-2 weather file<br>
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<p>Hi,</p>
<p> I am simulating type 1b solar thermal collector using type 15-2 weather files.I want to calculate the useful energy of the collector for london environment.but the useful energy is in negative,why is that it should be positive.take a look of the simulation result below:I have highlighted it with the red color. waiting for the reply</p>
<p> Time QColl <br> +0.0000000000000000E+00 +0.0000000000000000E+00 <br> +1.0000000000000000E+00 +0.0000000000000000E+00 <br>
+2.0000000000000000E+00 +0.0000000000000000E+00 <br> +3.0000000000000000E+00 +0.0000000000000000E+00 <br> +4.0000000000000000E+00 +0.0000000000000000E+00 <br> +5.0000000000000000E+00 +0.0000000000000000E+00 <br>
+6.0000000000000000E+00 +0.0000000000000000E+00 <br> +7.0000000000000000E+00 +0.0000000000000000E+00 <br> +8.0000000000000000E+00 +0.0000000000000000E+00 <br> +9.0000000000000000E+00 <font color="#ff0000"> -2.4173684203587297E+02</font> <br>
+1.0000000000000000E+01 <font color="#ff0000"> -2.5441648977456410E+02</font> <br> +1.1000000000000000E+01 +4.8138101649880042E+01 <br> +1.2000000000000000E+01 +1.6144304197108370E+03 <br>
+1.3000000000000000E+01 +3.4669850296828163E+03 <br> </p></td></tr></tbody></table><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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