<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv=Content-Type content="text/html; charset=iso-8859-1">
<meta name=Generator content="Microsoft Word 11 (filtered medium)">
<style>
<!--
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman";}
a:link, span.MsoHyperlink
{color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{color:purple;
text-decoration:underline;}
pre
{margin:0cm;
margin-bottom:.0001pt;
font-size:10.0pt;
font-family:"Courier New";}
span.E-MailFormatvorlage17
{mso-style-type:personal-compose;
font-family:Arial;
color:windowtext;}
@page Section1
{size:595.3pt 841.9pt;
margin:70.85pt 70.85pt 2.0cm 70.85pt;}
div.Section1
{page:Section1;}
-->
</style>
</head>
<body lang=DE link=blue vlink=purple>
<div class=Section1>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Hello,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>I have a problem with the nonstandard Type 301,
written by Per Isakson, “matched flow collector model”. Depending
on the timestep I get the following error (it occurs only at timesteps less
than ~45 minutes):<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>*** Fatal Error at time : 4792.090000<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'> Generated by Unit : 7<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'> Generated by Type : 301<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'> TRNSYS Message 103 : The TRNSYS TYPE checking
routine has found an inconsistency in the specified component between the input
file and the information expected by the Type<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'> Reported information : The component model has
reported an unspecified error. Please check the input file for possible sources
of error.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'> </span></font><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>TYPE301 : Ti4792.090 : Err
2000 : LE2_log ower flow<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>It is also depending on the Gain Constant of the
included PID. (Small gain constant -> error occurs even at large timesteps)<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>If I track the Type, I can´t find anthing unusual. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>I found an old question about this on the mailing
list, but no answer to it. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>The old one is posted below.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Maybe someone has an answer or a good idea ?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Thanks in advance,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'>Sarah<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<pre><i><font size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt;
font-style:italic'>“TRNSYS specialists<o:p></o:p></span></font></i></pre><pre><i><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt;font-style:
italic'><o:p> </o:p></span></font></i></pre><pre><i><font size=2
face="Courier New"><span lang=EN-GB style='font-size:10.0pt;font-style:italic'>This is a question regarding the matched flow collector model, type 101 (formerly<o:p></o:p></span></font></i></pre><pre><i><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt;font-style:
italic'>type 52) (non-standard), written by Per O. Isakson, distributed by TRANSSOLAR and<o:p></o:p></span></font></i></pre><pre><i><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt;font-style:
italic'>maybe others. The error 'LE2_log ower flow' stops the simulation (rarely, but if it<o:p></o:p></span></font></i></pre><pre><i><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt;font-style:
italic'>does this is a mayor problem for our testing of solar systems). More details about<o:p></o:p></span></font></i></pre><pre><i><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt;font-style:
italic'>the problem encountered are given below. <o:p></o:p></span></font></i></pre><pre><i><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt;font-style:
italic'><o:p> </o:p></span></font></i></pre><pre><i><font size=2
face="Courier New"><span lang=EN-GB style='font-size:10.0pt;font-style:italic'>Questions:<o:p></o:p></span></font></i></pre><pre><i><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt;font-style:
italic'>Is there anyone (the author, transsolar, ?) who masters and maintains the code? <o:p></o:p></span></font></i></pre><pre><i><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt;font-style:
italic'>If not, is there a more detailed description of the code, such as a description of<o:p></o:p></span></font></i></pre><pre><i><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt;font-style:
italic'>the variables used? (I do not mean the parameter-list, input/output-configuration<o:p></o:p></span></font></i></pre><pre><i><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt;font-style:
italic'>and physics involved: I do have that description).<o:p></o:p></span></font></i></pre><pre><i><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt;font-style:
italic'>Has anyone come across the same problem and identified a cause or even solved it?<o:p></o:p></span></font></i></pre><pre><i><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt;font-style:
italic'><o:p> </o:p></span></font></i></pre><pre><i><font size=2
face="Courier New"><span lang=EN-GB style='font-size:10.0pt;font-style:italic'>Problem: <o:p></o:p></span></font></i></pre><pre><i><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt;font-style:
italic'>I believe to have been facing problems with 'LE2_log ower flow' before when there<o:p></o:p></span></font></i></pre><pre><i><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt;font-style:
italic'>was a small flow rate, which was for some reason not discovered as such and<o:p></o:p></span></font></i></pre><pre><i><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt;font-style:
italic'>eliminated by the routine. Recently the error occurred in a no-flow situation. (No<o:p></o:p></span></font></i></pre><pre><i><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt;font-style:
italic'>flow in the timestep when the error occurred and no flow in at least 10 preceding<o:p></o:p></span></font></i></pre><pre><i><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt;font-style:
italic'>timesteps either). Looking at the code reveals that only one simple condition in<o:p></o:p></span></font></i></pre><pre><i><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt;font-style:
italic'>subroutine Search_LE2_log can cause the error. However, printing out the quantities<o:p></o:p></span></font></i></pre><pre><i><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt;font-style:
italic'>used by this routine generates more question than answers. <o:p></o:p></span></font></i></pre><pre><i><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt;font-style:
italic'><o:p> </o:p></span></font></i></pre><pre><i><font size=2
face="Courier New"><span lang=EN-GB style='font-size:10.0pt;font-style:italic'>Note:<o:p></o:p></span></font></i></pre><pre><i><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt;font-style:
italic'>I have been working with that type for years and the longer I use it, the more I<o:p></o:p></span></font></i></pre><pre><i><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt;font-style:
italic'>like it. It would be a petty if I'd have to give it up for a minor reason. But that<o:p></o:p></span></font></i></pre><pre><i><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt;font-style:
italic'>code is not exactly like reading Harry Potter. <o:p></o:p></span></font></i></pre><pre><i><font
size=2 face="Courier New"><span lang=EN-GB style='font-size:10.0pt;font-style:
italic'><o:p> </o:p></span></font></i></pre><pre><i><font size=2
face="Courier New"><span lang=EN-GB style='font-size:10.0pt;font-style:italic'><o:p> </o:p></span></font></i></pre><pre><i><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-style:italic'>Peter“<o:p></o:p></span></font></i></pre>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Mit freundlichem Gruß,</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Sarah Settler</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Ökoplan<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Büro für zeitgemäße Energieanwendung<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Hummelsbütteler Weg 36<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>22339 Hamburg<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>T 040 5394143 F 040 5394144<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
</div>
</body>
</html>