<html> <head> <meta http-equiv=Content-Type content="text/html; charset=iso-8859-1"> <meta name=Generator content="Microsoft Word 11 (filtered)"> <style>  </style> </head> <body lang=EN-US link=blue vlink=purple> <div class=Section1> Hi Pat,   depending on what depth of information you are looking for, ESP-r has that info for any multi-layer construction readily available. You just need to change the “results flag” from 2 or 4 or whatever to 3. Then you get 3 temperatures for each layer at every timestep (surface, center, other surface).   Now if e.g. a concrete wall / slab is of detailed interest, you can split that up into more layers – ergo more temperatures. For higher time resolution, of course, you can use smaller time steps.   Last not least (as written in an earlier mail) ESP-r has that “3d high definition” thing hidden somewhere … therein, as far as I remember, you can descretisize (?) to your hearts content.   Hope that helps, <div> Best regards Achim Geissler   </div> <div style='border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt'> <div> <div class=MsoNormal align=center style='text-align:center'> <hr size=2 width="100%" align=center tabindex=-1> </div> From: esp-r-bounces@lists.strath.ac.uk [mailto:esp-r-bounces@lists.strath.ac.uk] On Behalf Of pat mc cormack Sent: Saturday, June 02, 2007 10:55 PM To: esp-r Subject: [esp-r] thermal lag </div>   BTW Has anyone got info on how I'd use esp-r to calculate the thermal lag of a construction? thanks Pat -- "Government is not reason, it is not eloquence, it is force; like fire, a troublesome servant and a fearful master. Never for a moment should it be left to irresponsible action." -- George Washington (1732-1799) Founding Father, 1st US President, 'Father of the Country' Source: in a speech of January 7, 1790 </div> </div> </body> </html>