[Bldg-sim] Weather prediction for buidling energy simulation

holly wasilowski hollywas at yahoo.com
Mon Jul 26 14:57:18 PDT 2010


Dear Kim,
I'm not sure if I understand what you need.  However, if you are looking for 
"Global Horizontal Radiation" for a simulation, EnergyPlus does not currently 
use that value according to the E+ Weather Converter Program documentation.  You 
could enter 9999 for each timestep.  

 
If you are looking to calculate "Horizontal Infrared Ratiation from Sky", Brent 
Griffith from NREL pointed me toward Appendix E in this report:
 
http://www.nrel.gov/docs/fy05osti/34830.pdf
 
Good luck.
Holly
-- 
Holly Wasilowski
Registered Architect | LEED AP
Doctor of Design Student in Sustainable Design 
Harvard Graduate School of Design


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Subject: Bldg-sim Digest, Vol 32, Issue 26

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Today's Topics:

  1. Re: Bldg-sim Digest, Vol 32, Issue 25 (???)
  2. eQuest Weather File Conversion Error (Chris)


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Message: 1
Date: Mon, 26 Jul 2010 11:54:15 +0900
From: ??? <deukwookim at skku.edu>
To: bldg-sim at lists.onebuilding.org
Subject: Re: [Bldg-sim] Bldg-sim Digest, Vol 32, Issue 25
Message-ID: <000001cb2c6d$d5653bf0$802fb3d0$@edu>
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Dear Mark,

Thanks for your reply.

I made an algorithm that screens diffuse & beam radiation from global radiation 
under clear sky condition 

(reference book: solar engineering of thermal processes).

But I can't find the contents about prediction of solar radiation. 

What I want to know is how can I "forecast" global radiation in future time 
(1,2,3..hour or 1,2,3...day later).

Thanks in advance.


-----Original Message-----
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Sent: Monday, July 26, 2010 4:01 AM
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Subject: Bldg-sim Digest, Vol 32, Issue 25

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------------------------------

Message: 2
Date: Mon, 26 Jul 2010 11:53:37 -0700
From: Chris <floodyc at gmail.com>
To: "bldg-sim at lists.onebuilding.org" <Bldg-sim at lists.onebuilding.org>
Subject: [Bldg-sim] eQuest Weather File Conversion Error
Message-ID:
    <AANLkTim22zh9HOhm1V=SNGJh2fy4kRfmhDntaZdSNCp4 at mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"

Can anyone help me with an eQuest Weather File conversion error?
When using the eQuest Weather Format Convertor and selecting the
File_IWEC.epw weather file in the eQuest weather folder in my c drive and
clicking "Convert" I get an error saying "Invalid Filename"
Anyone seen this before?


-- 
Chris Flood BSc (Eng)
Senior Building Analyst & Energy Modeller
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