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<p>The format of the incidence angle modifier data file is similar to any of the other models that use the bi-axial format:</p>
<p>The first line in the data file must include the transverse angles for which data is provided - in ascending order - and from 0 to 90 degrees.</p>
<p>The second line in the data file must include the longitudinal angles for which data is provided - in ascending order - and from 0 to 90 degrees.</p>
<p>The next N lines contain the value of the incidence angle modifier at the combination of the longitudinal and transverse angles, where N is the number of longitudinal angles (NL) multiplied by the number of transverse angles (NT). These values repeat for NL times for a given transverse angle. </p>
<p>A few things to remember:</p>
<p>Make sure to set the correct parameter values based on the number of angles that you have</p>
<p>The text file must be pure ASCII text</p>
<p>The data interpolation routine will not extrapolate beyond the bounds of your data - so make sure you have the extremes covered</p>
<p> </p>
<p>An example helps illustrate the format</p>
<p>0 10 20 30 40 50 60 70 80 90 !Transverse angles<br />0 15 30 45 60 75 90 !Longitudinal angles<br />1.0000 !IAM at T=0,L=0<br />0.9000 !IAM at T=0,L=15<br />0.8000 !IAM at T=0,L=30<br />0.7000 !IAM at T=0,L=45<br />0.6000 !IAM at T=0,L=60<br />0.5000 !IAM at T=0,L=75<br />0.4000 !IAM at T=0,L=90<br />0.9000 !IAM at T=10,L=0<br />0.8000 !IAM at T=10,L=15<br />0.7000 !IAM at T=10,L=30<br />0.6000 !IAM at T=10,L=45<br />0.5000 !IAM at T=10,L=60<br />0.4000 !IAM at T=10,L=75<br />0.3000 !IAM at T=10,L=90<br />.<br />.<br />.<br />.<br />.<br />.<br />0.0000 !IAM at T=90,L=90</p>
<p> </p>
<p>Jeff</p>
<p> </p>
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<pre>---<br />Jeff Thornton
President - TESS LLC
22 N. Carroll Street, Madison WI USA 53703
Office: (608) 274-2577 Fax: (608) 278-1475
www.tess-inc.com
E-Mail: thornton@tess-inc.com
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<p>On 03/15/2017 5:55 am, Roberto Tascioni via TRNSYS-users wrote:</p>
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<div>Hi everyone,<br />concerning the type 1288 of the solar library (TESS), I'm trying to understand:<br />how can the ".dat" file be changed ?<br />(.\Tess Models\SampleCatalogData\Bi-Axial IAMs\Typical_LinearFresnel_IAM_2d.dat)<br />In particular, is not clear the data sorting into the file, in my case I have the longitudinal and transversal IAM and I don't know which is the exact procedure to fill it preventing possible mistakes by the type.</div>
<div>The document "10-SolarLibraryMathematicalReference.pdf" that describes this type is missing of the mathematical model, it is written "coming soon" only, <span id="gmail-result_box" class="gmail-short_text"><span class="gmail-alt-edited">nothing more</span></span>, its last update dates back to 10/07/2014 ! <span id="gmail-result_box" class="gmail-short_text"><span>This</span> <span class="gmail-">is unacceptable !<br /></span></span></div>
<br />Your help will be appreciated.</div>
Thanks a lot.</div>
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Roberto<br />
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<pre>Roberto Tascioni - Energy Eng. – Industrial and Innovation Department,<br />Applied Science and Technology Faculty
Marconi University: <a href="http://www.unimarconi.it">www.unimarconi.it</a>
Lab.: Via Paolo Emilio 29, 00192 Rome, Italy.
Phone: +39 0637725-268
mail: <a href="mailto:r.tascioni@lab.unimarconi.it">r.tascioni@lab.unimarconi.it</a><br /><br /></pre>
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