<div>Dear Matt,</div>
<div>thank you for your efforts. Will I have only to replace the old ***.DLL file with the new one you will send me?</div>
<div>Second question about my old projects, i.e. the files ***.tpf I made with the old ***.DLL file: will they work? Or will I have to create them again?</div>
<div>Thanks,</div>
<div>Giulio Betti<br><br></div>
<div class="gmail_quote">2009/1/9 Matt Duffy <span dir="ltr"><<a href="mailto:duffy@tess-inc.com">duffy@tess-inc.com</a>></span><br>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">Dear Giulio,<br><br>After reconsidering and as one of my colleagues so kindly brought to my<br>attention, this still will not function properly if you simply change the<br>
parameters. Please let me send you a new DLL after I recompile the new<br>source code<br>
<div class="Ih2E3d"><br>Best regards,<br><br>Matt Duffy<br><br><br><br>----- Original Message -----<br></div>
<div>
<div></div>
<div class="Wj3C7c">From: "Matt Duffy" <<a href="mailto:duffy@tess-inc.com">duffy@tess-inc.com</a>><br>Sent: Fri, January 9, 2009 14:07<br>Subject:Re: [TRNSYS-users] IAM (incidence angle modifier) using TESS Type538<br>
<br>Dear Giulio,<br><br>After looking at the source code for Type538, I realized that the NX<br>arrary for the DYNAMICDATA utility routine was backwards..<br>"NX(1)=NTRNS<br>NX(2)=NLONG<br>CALL DYNAMICDATA(LUIAM,2,NX,1,X,Y,INFO,*20)"<br>
<br>The correct fix would be...<br><br>"NX(2)=NTRNS<br>NX(1)=NLONG"<br><br>In the mean time for a temporary fix, yes, you max switch the parameter 11<br>and 12 in the proforma. If you have an equal number of transversal and<br>
longitudinal angles, this will not be a problem.<br><br>I apologize for any inconvenience. Thank you for bringing this to our<br>attention.<br><br><br><br>Best regards,<br><br>Matt Duffy<br>Technical Support Team<br>Thermal Energy System Specialists<br>
22 N Carroll, Suite 300<br>Madison, WI 53703<br><a href="mailto:duffy@tess-inc.com">duffy@tess-inc.com</a><br><br>----- Original Message -----<br>From: "giulio betti" <<a href="mailto:giulio.betti@gmail.com">giulio.betti@gmail.com</a>><br>
Sent: Tue, January 6, 2009 10:38<br>Subject:Re: [TRNSYS-users] IAM (incidence angle modifier) using TESS Type538<br><br>Ok, here they are.<br>The transversal IAM are provided for 0° (=1), 20° (=1.02), 40° (=1.03),<br>60°<br>
(=0.89), 90° (=0), whiIe the longitudinal IAM are provided for 0° (=1),<br>50°<br>(=0.92), 90° (=0).<br>I have to add another information: I tried to use the same file .dat with<br>Type71, setting 3 in parameter 10 [Number of longitudinal angles for which<br>
IAMs are provided] and 5 in parameter 11 [Number of transverse angles for<br>which IAMs are provided] and it works. So, for this collector it seems the<br>documentation is right, while with Type538 there is the problem I described<br>
in the other email.<br>Maybe the simpliest explanation is that in Type538 parameter 11 should be<br>named "Number of longitudinal angle" and parameter 12 "Number of transverse<br>angle"...or maybe I'm making some mistake...<br>
Thank you very much,<br>regards,<br>Giulio<br>2009/1/6 David Bradley <<a href="mailto:bradley@tess-inc.com">bradley@tess-inc.com</a>><br><br>> Giulio,<br>> Could you please send me your project (*.tpf file) and your IAM file? I<br>
> will try to find the cause of the error and then make sure that there is<br>not<br>> a mistake in the documentation!<br>> Kind regards,<br>> David<br>><br>><br>> giulio betti wrote:<br>><br>> dear all,<br>
> I'm using Type538 (TESS Solar Library, Evacueted tube collectors) at<br>> university. I have a problem with IAM: I read the posts about it on this<br>> mailing list and the chapter 5.11.14.4 of the Trnsys16 manual, so I think<br>
> I've understood how to use it. I made the external data file needed by<br>> subroutine DYNAMICDATA as explained in the manual:<br>><br>> <Transversal angle 1> <Transversal angle 2> etc. Nt values [0;90]<br>
><br>> <Longitudinal angle 1> <Longitudinal angle 1> etc. Nl values [0;90]<br>><br>> <IAM 1 1> IAM for transv. angle 1, long. angle 1<br>><br>> <IAM 1 2> IAM for transv. Angle 1, long. angle 2<br>
><br>> ...<br>><br>> <IAM 1 Nl> IAM for transv. angle 1, long. angle Nl<br>><br>> <IAM 2 1> IAM for transv. angle 2, long. angle 1<br>><br>> <IAM 2 2> IAM for transv. angle 2, long. angle 2<br>
><br>> ...<br>><br>> <IAM 2 Nl> IAM for transv. angle 2, long. angle Nl<br>><br>> <IAM 3 1> IAM for transv. angle 3, long. angle 1<br>><br>> ...<br>><br>> <IAM Nt Nl> IAM for transv. angle Nt, long. angle Nl<br>
><br>> Having 5 transversal angles [0°, 20°, 50°, 70°, 90°] and 3<br>longitudinal<br>> angles [0°, 50°, 90°] my file .dat is something like this (I don't<br>write all<br>> 15 values of the column):<br>><br>
> 0 20 50 70 90<br>><br>> 0 50 90<br>><br>> 1<br>><br>> 0.95<br>><br>> 0<br>><br>> .<br>><br>> .<br>><br>> .<br>><br>> 0<br>><br>> In Type538 I set parameter 11 (Number of transverse angles) to 5 and<br>
> parameter 12 (Number of longitudinal angles) to 3. Now, I tried to run the<br>> simulation: Trnsys didn't work: it said that there was an error without<br>> specifing details:<br>><br>> Fatal Error at time : 3245.010000<br>
> Generated by Unit : 3<br>> Generated by Type : 538<br>> TRNSYS Message 109 : Error reading data stored in logical unit.<br>> NOTE: the reported logical unit number may be automatically or internally<br>
> ASSIGNed, or you may have specified the incorrect number of independent<br>> variables.<br>> Reported information : Logical Unit number 33<br>><br>><br>> So I tried to change parameter 11 and parameter 12: I set parameter 11 to 3<br>
> and parameter 12 to 5 (I simply reversed the number of transversal angles<br>> with the number of longitudinal angles). In this way the simulation ran!<br>><br>> So the question is this: the file .dat has to be written as described in<br>
> the manual, and there is only an inversion in the definitions of "parameter<br>> 11" and "parameter 12", so that the only change to do is the one described<br>> above?<br>><br>> Or the definitions of "parameter 11" and "parameter 12" are right and there<br>
> is to change the file .dat putting in the first line the longitudinal<br>angles<br>> and in the second line the transversal angles? In this case, the column<br>with<br>> all the possible multiplications is to be left as it is described in the<br>
> manual, or I have to modify it in this way:<br>><br>> <IAM 1 1> IAM for long. angle 1, transv. angle 1<br>><br>> <IAM 1 2> IAM for long. Angle 1, transv. angle 2<br>><br>> ...<br>><br>
> <IAM 1 Nl> IAM for long. angle 1, transv. angle Nl<br>><br>> <IAM 2 1> IAM for long. angle 2, transv. angle 1<br>><br>> <IAM 2 2> IAM for long. angle 2, transv. angle 2<br>><br>> ...<br>
><br>> <IAM 2 Nl> IAM for long. angle 2, transv. angle Nl<br>><br>> <IAM 3 1> IAM for long. angle 3, transv. angle 1<br>><br>> ...<br>><br>> <IAM Nt Nl> IAM for long. angle Nt, transv. angle Nl<br>
><br>> ?<br>><br>> I hope I've been clear enough, thank you all,<br>><br>> regards,<br>><br>> Giulio Betti<br>><br>> ------------------------------<br>><br>> _______________________________________________<br>
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