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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>David/Jeff,</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>You and Jeff both had similar responses
I am currently using an extract of TMY2 for annual simulations and experimental
data set for other simulations. I have changed my simulation start time to
the new standard.</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I have considered using the canned mode of
type 89 to read in the TMY data, but did not find a TYPE 15 in the
documentation. Could you point me to this.</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I probably have some differing concerns
about some of the types than other users, but here are my considerations:</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal style='margin-left:.75in;text-indent:-.5in'><font size=2
color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>1.<font size=1 face="Times New Roman"><span style='font:7.0pt "Times New Roman"'>
</span></font></span></font><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>For TMY, I really only
need about 5 fields or so. Will reading the entire file (even if I only
use a few fields) impose a performance slow down?</span></font></p>
<p class=MsoNormal style='margin-left:.75in;text-indent:-.5in'><font size=2
color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>2.<font size=1 face="Times New Roman"><span style='font:7.0pt "Times New Roman"'>
</span></font></span></font><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>For Type 69, I’ve
considered using this as well, but as I recall, it doesn’t handle IR that
I need when not using TMY data. I’m currently using a similar
routine that has this mode.</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>If there is a good quick way to combine
this all into one type, then I would consider it. However, I will still
be using custom data sets, so I will still need to know how to make sure
that I’ve set up type 9 correctly, although I will typically not need
type 16 in these cases.</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<div>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Steven Long</span></font><font size=2
color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>, </span></font></p>
</div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma'>-----Original Message-----<br>
<b><span style='font-weight:bold'>From:</span></b> </span></font><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>David Bradley</span></font><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
[mailto:bradley@tess-inc.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> </span></font><font size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>Tuesday, May
29, 2007</span></font><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma'> </span></font><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma'>7:25 AM</span></font><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'><br>
<b><span style='font-weight:bold'>To:</span></b> </span></font><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>Steven Long</span></font><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>; </span></font><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>trnsys-users@engr.wisc.edu</span></font><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'><br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [TRNSYS-users]
Converting data reader to TRNSYS 16</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> </span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>Steve,<br>
If you are reading a standard TMY file (either TMY, TMY2, or the old
TRNSYS TMY format), I would suggest that you replace Type9 with Type15. Type15
combines the functionality of Type89 (which reads standard format files such as
TMY2 and TRNSYS TMY) with Type16 and Type69. It avoids some of the problems of
setting Type16 parameters correctly and of making connections between those
components. Also, be sure that you changed the start time of your simulation.
The TRNSYS 15 convention was that the start time was the hour of the year at
the end of the first time step (although often you had to tweak this around to
get it to actually work correctly). In TRNSYS 16, the start time is the hour of
the year at the beginning of the first time step. I hope that helps.<br>
David<br>
<br>
<br>
At 12:20 5/28/2007, Steven Long wrote:<br>
<br>
</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face="Times New Roman"><span
style='font-size:10.0pt'>Hi:<br>
<br>
I’m converting a series of decks to TRNSYS 16. When I run the decks
using TRNSYS 16 source code with the deck version as “15” I
don’t get any radiation or data problems, beyond the warning about the
new start time convention. My results are similar to TRNSYS 15.<br>
<br>
I then converted the decks to “version 16” and made the changes to
the type 9 that are described in the user manual. I’m using TMY
data for the entire year, but I’m not using all columns of the entire TMY
file, so I’m not using the default TMY reader mode. Now when I run
these decks, I got the following results:<br>
<br>
1.</span></font><font size=1><span style='font-size:7.5pt'>
</span></font><font size=2><span style='font-size:10.0pt'>Many type 16 errors
due to radiation exceeding the SC.<br>
2.</span></font><font size=1><span style='font-size:7.5pt'>
</span></font><font size=2><span style='font-size:10.0pt'>A minimum collector
temperature that is below anything in the data file.<br>
3.</span></font><font size=1><span style='font-size:7.5pt'>
</span></font><font size=2><span style='font-size:10.0pt'>Similar overall
results to TRNSYS 15.<br>
<br>
My type 9 is as follows:<br>
<br>
(Idn=input 2,ih= input 3)<br>
<br>
</span></font><font size=1 face=Fixedsys><span style='font-size:7.5pt;
font-family:Fixedsys'>UNIT 1 TYPE 9 DATA READER<br>
PARAMETERS 34<br>
3 0 7 1 <br>
1 1 0 0<br>
-2 1 0 0<br>
-3 1 0 0<br>
4 1 0 0<br>
5 1 0 0<br>
6 1 0 0<br>
7 1 0 0<br>
10 -1<br>
<br>
I have tried various modes and get similar errors. If I add one “starter”
line to the TMY file and change to mode 5/6, I get fewer radiation errors.<br>
<br>
I also looked at type 16 and it appeared that this changed as well:<br>
<br>
UNIT 66 TYPE 16 RADIATION PROCESSOR<br>
PARAMETERS 9<br>
* RADMODE TRACKMODE TILTMODE DAY LAT
SC SHFT
SMOOTH<br>
4 1
2 ZSTARTDAX1 GLATITUDC1 XSOLARCOC1
ZSHIFTLOC1 2<br>
* IE<br>
-1<br>
INPUTS 7<br>
* I IDN
TD1 TD2
RHOG BETAI
GAMMAI<br>
1,3 1,2 1,99 1,100 0,0 0,0
0,0<br>
0 0
0 0
ZGROUNDRC1 GCOLSLOPC1 GCOLAZIMC1<br>
<br>
</span></font><font size=2><span style='font-size:10.0pt'>It appears that the
smooth mode is no longer used and the last parameter should be -1.
Looking at the documentation, it was unclear what inputs 3 and 4 should be as
they are listed as 19,20 in type 16, but the older convention of 99,100 is
still indicated in the type 9 documentation.<br>
<br>
Do you have any ideas as to what I may be doing wrong?<br>
<br>
Thanks,<br>
<br>
<br>
Steven Long<br>
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