Weird radiation results

Hi all!

I'm getting some weird results running a solar radiation study. When I run a study at the 20th of june at 12.00 noon, you'd expect a lot of sun, but the results are 0 (nighttime).

If I go to 16.00,17.00 i finally start getting results, but the most 'warm' results i get when it's midnight around 1.00 2.00.

It appears the time is shifted by 12.00, what might I be doing wrong?

12.00

14.00

17.00 (first results, seems like sunrise)

2.00 (midnight, but seems to be noon)

Replies are closed for this discussion.

Replies to This Discussion

Permalink Reply by Mostapha Sadeghipour Roudsari on October 25, 2014 at 10:39pm

It works totally fine on my system and I am also using the new version.

Chris, can you confirm that selectSkyMtx component returns all zeros on your system? If that is the case, can you remove echo off from bacth file, add a pause at the end of file and run it again and see if there is an error?

Mostapha

Permalink Reply by Chris Mackey on October 25, 2014 at 10:45pm

Mostapha,

It is not the the selectSkyMtx component returns all zeros when you run an annual simulation. It is only when you run it for a single hour that should be sun-up. Try changing the HOY of selectSkyMtx to 12 and you should see the error. Over the whole year, the component is still relatively good.

-Chris

Permalink Reply by Mostapha Sadeghipour Roudsari on October 25, 2014 at 10:47pm

Ah... Got it! Thanks for clarification. I can see why this is happening. There is a heading added in the new version. Let me see how can I get it fixed. Thanks again.

Permalink Reply by Chris Mackey on October 25, 2014 at 10:54pm

Awesome! Glad to be of help.

Permalink Reply by Mostapha Sadeghipour Roudsari on October 25, 2014 at 11:22pm

Can you guys check the attached file and let me know if it works fine? It should work with both versions of gendaymtx with no problem.

Attachments:

genSkyMtx_Fixed.gh, 83 KB

Permalink Reply by Chris Mackey on October 25, 2014 at 11:47pm

This one runs perfectly on my machine with the 21 KB gendaymtx.exe. What was it that you changed, Mostapha? I may need to make a similar change in my solar adjusted temperature component.

Permalink Reply by Mostapha Sadeghipour Roudsari on October 26, 2014 at 11:18pm

Hey Chris, Sorry for the late response.

Here are the changes: https://github.com/mostaphaRoudsari/ladybug/commit/f801bd61c30692f9...

I made few changes to check for the header and if the header is there consider passing the header. It looks to work fine but I want to test it more before sending an update note. Will do some validations tomorrow evening.

Mostapha

Permalink Reply by Chris Mackey on October 27, 2014 at 12:18am

Ok. As long as the selesctSkyMtx component didn't change, I think my solar adjusted temperature component should be fine as-is. Keep us posted on the validations.

Permalink Reply by Arie-Willem de Jongh on October 27, 2014 at 12:26pm