Re: [EnergyPlus_Support] jEPlus & Window-to-wall ratio

On Wed, Aug 29, 2012 at 4:01 PM, Niraj Poudel <nirajpdl@xxxxxxxxx> wrote:

Lol Jeremiah. I was just at the right spot at the right time. :) But yeah, I spoke with Dr. Ivan Korolija just recently and he said that he just uploaded the video to couple JePlus with Epmacro. And this is the link right here:

http://www.youtube.com/watch?v=NopNWtgKvDs&feature=plcp

Hope this helps Amir.
Niraj

On Wed, Aug 29, 2012 at 6:25 PM, Jeremiah Crossett <jcrossett@xxxxxxxxxxxxxxx> wrote:

Narj, you beat me to it--:} Amer I was just typing that You could also use EP Macro, by taking the window vertices's for each and including them into an IMF, but it might get very confusing for a lot of windows at a time. (I mentioned this in my previous email when I said mentioned the second option for use in daylight studies)

I have no idea what your goal for the partitions is, and have not used jE+ so can not comment

Still I think you could use the window multiplier will work- ACTUALLY I AM SURE OF IT. Let me guess you are using delighting controls causing your file has crashed and you have not checked the .ERR files to see that what the problem is? Did you notice when I said that you can not use the window multiplier for daylight studies?

Attached is a working use of the simple approach, notice how the energy profile is different when changing the window multilayer from a 1 to a 2...?

This also works in JE+..

All the best

Jeremiah D. Crossett | Senior Analyst | Phase Change Energy Solutions
120 E. Pritchard St. | Asheboro, NC 27203 | Mobile 503-688-8951

www.phasechange.com

On Wed, Aug 29, 2012 at 2:38 PM, Amir <amirhosein_ghoreishi@xxxxxxxxx> wrote:

Folks,

I have been trying to use jEPlus for a parametric study that includes wall, slab, window-to-wall ratio (WWR) and interior partitions as variables for 8 different locations. Unlike the first two, for WWR and partitions, I have not been able to get it to work and Jeremiah and other folks have been generously trying to help. I have come up with an idea and would be grateful if you think whether this a right approach to start with.

Instead of having one .idf file with different search strings representing all variables, I will have three .idf files for three WWR(s) and three .idf files for 3 different partition layouts, and then I will place the search strings for wall and slab variables in all 6 .idf files. At the end, I will choose all 6 files and all 8 locations all at once and run the jEPlus program. I know this would not give me all possible combinations among these variables but may work. What do you think?

--
Niraj Poudel, Architectural Engineer.
PhD student, PDBE Program.
Clemson University, Clemson, SC.