W's profile - activity

I was looking at thermal decays only during the night. This should prevent the influences of internal gains and solar, shouldn't it? How much do you think the infiltration and the different boundary conditions could matter? Which do you think the order of magnitude could be?

I am using Energy Plus to evaluate two different houses and, going through the outputs, it came to my mind that the time constant during indoor temperature thermal decays (in the night for instance) of the house could be related directly to the energy consumption for space heating. Therefore I wrote a code in Matlab to compute the thermal time constant from the 3 minutes data of indoor temperature provided by Energy Plus.

However, the time constant is not consistent between winter and shoulder months. I know it is very simplistic, but there should be some kind of consistency in it, right? What do you think I might be missing?

Thanks in advance for the help

Thanks! Even if I have figured out how to do it with Excel and Notepad++, this will make everything faster!

I need to modify an epw weather file, therefore I converted it into csv using the Energy Plus converter and made my adjustments. However, when I try to convert it back to epw using the same tool I get a list of errors and the output are just a .stat file and a .audit file. No epw is created. What should I do to have the epw file? Unfortunately I am new to these topics and I don't have enough points to upload a screen shot of the errors. Thanks for the help