<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv=Content-Type content="text/html; charset=utf-8"> <meta name=Generator content="Microsoft Word 12 (filtered medium)">  <style>  </style>  </head> <body lang=DE-CH link=blue vlink=purple> <div class=Section1> Dear Adhi<o:p></o:p> <o:p> </o:p> <![if !supportLists]>1)      <![endif]>Yes, the startup days – 1 day is too short for most models. Use at least 7 days, heavy constructions can easily require 21 days<o:p></o:p> <![if !supportLists]>2)      <![endif]>Example 1 seems to be a steady state case. You will need to create your own meteo file with a constant temperature of 22 °C, no solar. The change in temperature then results from the “Machines” with 1000 W that run from 6 to 18:00. However “no long wave radiation” is difficult. Probably you would need to set external surface emissivity to 0. Or maybe sky and ground fractions to 0.<o:p></o:p> <o:p> </o:p> Achim<o:p></o:p> <o:p> </o:p> <o:p> </o:p> <o:p> </o:p> <div> <div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'> From: AdhiSüß [mailto:adhi_vanjava@yahoo.ca] Sent: Donnerstag, 10. Dezember 2009 19:08 To: Achim Geissler Subject: Re: [esp-r] simulating VDI 6020<o:p></o:p> </div> </div> <o:p> </o:p> <div> <div> Dear Achim, 1. Do you mean the "start-up days" ? If yes, it's 1 day 2. I don't know it is a jump response or not but I am attaching page 51 & 52 of VDI 6020 test for your opini.  It could be, the test is using contanst temperature (22C), or is this the initial temperature? Thanks for your help Adhi<o:p></o:p> </div> <div> <o:p> </o:p> <div> <div class=MsoNormal align=center style='text-align:center'> <hr size=1 width="100%" align=center> </div> From: Achim Geissler <achim.geissler@intergga.ch> To: AdhiSüß <adhi_vanjava@yahoo.ca>; ESP-r <esp-r@lists.strath.ac.uk> Sent: Thu, December 10, 2009 4:44:12 PM Subject: RE: [esp-r] simulating VDI 6020<o:p></o:p> <div> Dear Adhi<o:p></o:p>  <o:p></o:p> allthough I do not know what the Example 1 in VDI 6020 covers, the results you sent give rise to following questions for me:<o:p></o:p> 1)      How long was your “warm up” for ESP-r?<o:p></o:p> 2)      Is Example 1 not a “jump response” type of test? The 6020 plot seems to imply this<o:p></o:p>  <o:p></o:p> In any case, an old “Bine” information (III/99) covers VDI 6020 in its development stage and also compares ESP-r results (among others). Here, “Example 1” shows good agreement.<o:p></o:p>  <o:p></o:p> Achim<o:p></o:p>  <o:p></o:p>  <o:p></o:p> <div> <div style='border:none;border-top:solid windowtext 1.0pt;padding:3.0pt 0cm 0cm 0cm; border-color:-moz-use-text-color -moz-use-text-color'> From: esp-r-bounces@lists.strath.ac.uk [mailto:esp-r-bounces@lists.strath.ac.uk] On Behalf Of AdhiSüß Sent: Donnerstag, 10. Dezember 2009 16:03 To: ESP-r Subject: [esp-r] simulating VDI 6020<o:p></o:p> </div> </div>  <o:p></o:p> <div> <div> Hello, I did simulation VDI 6020 (Example 1) with ESP-r. It is not clear what weather data is used in that test. My friend said, it is TRY for Wuerzburg (weather region 5). I built the model and used this weather data, but the results are different. Same trend but not close (see VDI6020.jpg). My question is: is that the correct weather data for VDI 6020 test? if yes, why is so much different between VDI's results and ESP-r's results? I have checked construction and schedule of my model are according to VDI 6020 (Example 1). Thank you for your help. regards Adhi<o:p></o:p> </div> </div>  <o:p></o:p> <div class=MsoNormal align=center style='text-align:center'> <hr size=1 width="100%" align=center> </div> <img width=25 height=25 id="_x0000_i1026" src="http://us.i1.yimg.com/us.yimg.com/i/ca/iotg_search.jpg" hspace=4><a href="http://ca.toolbar.yahoo.com/" target="_blank">Yahoo! Canada Toolbar : Search from anywhere on the web and bookmark your favourite sites. Download it now! </a><o:p></o:p> </div> </div> </div> </div> <o:p> </o:p> <div class=MsoNormal align=center style='text-align:center'> <hr size=1 width="100%" align=center> </div> Looking for the perfect gift?<a href="http://www.flickr.com/gift/"> Give the gift of Flickr!</a><o:p></o:p> </div> </body> </html>