[Bldg-sim] Bldg-sim] Modeling tool for daylight, Energy, Thermal comfort analysis

[Radler63]

Hello,

we tried out a software named PARASOL, developed by LTH SWEDEN. but since we wanted to model rollable blinds with PV-included, adding also a special control agorithm, we did our own model in python.
by using PARASOL you may do some postprocessing for the  comfort factors.  also may point you to Mathcad which allows to do all at a macroscopic level with the help of some existing code and WYSIWYG coding.

best regards

Gerfried

Her is the project brief http://www.effiziente.st/sowa_en.htm
and here a new questionnaire about building integrated solar http://www.surveymonkey.com/s/HHNBJ2B

From: Jeff Haberl 
Sent: Monday, April 25, 2011 6:55 PM
To: ali hamada fakra 
Cc: bldg-sim at lists.onebuilding.org 
Subject: Re: [Bldg-sim] Bldg-sim] Modeling tool for daylight, Energy, Thermal comfort analysis

Hamada,



I did not mention nor comment on CODYRUN as I am not familiar with this software.



jeff



8=!  8=)  :=)  8=)  ;=)  8=)  8=(  8=)  8=()  8=)  8=|  8=)  :=')  8=)8=?

Jeff S. Haberl, Ph.D.,P.E., FASHRAE..............jhaberl at tamu.edu

Professor............................................................Office Ph: 979-845-6507

Department of Architecture.............................Lab Ph:979-845-6065

Energy Systems Laboratory.............................FAX: 979-862-2457

Texas A&M University.....................................77843-3581

College Station, Texas, USA, 77843..................URL:www.esl.tamu.edu

8=/  8=)  :=)  8=)  ;=)  8=)  8=()  8=)  :=)  8=)  8=!  8=)  8=? 8=)8=0


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

From: ali hamada fakra [fakra at univ-reunion.fr]
Sent: Monday, April 25, 2011 4:23 AM
To: Jeff Haberl
Cc: bldg-sim at lists.onebuilding.org
Subject: Re: [Bldg-sim] Bldg-sim] Modeling tool for daylight, Energy, Thermal comfort analysis


Dear Prof. Haberl, 

Is that your remarks are addressed directlty to me ? is what I do understand that you criticize the software CODYRUN ? If this is not the case, I apologize to you for that question.

best regards.

A. H. Fakra

Le 25 avr. 11 à 06:49, Jeff Haberl a écrit :


  Hamada,

  Unfortunately, you've chosen the worst possible building for analysis. There are several reasons for this.

  First, there is no single U.S. tool that does an accurate analysis of what you are asking for. There are some that perform simplified analysis of most of the parameters you are looking for, but none do it all right (that I’m aware of). Some of the European codes are getting close, for example ESPr and/or IES/VE, but each has its limitations.

  To estimate the thermal analysis with Visual DOE (i.e., DOE-2.1e) or EQUEST (i.e., DOE-2.2) you’d need to have at least one zone that is conditioned in order to simulate conditions in an unconditioned space. So, although it is possible to perform such a simulation, you have to go to great lengths to do this with canned simulations such as DOE-2.1e and DOE-2.2. One successful project that did this for a Buddhist temple was done by Dr. Sreshthaputra, which you can read about in:

  Sreshthaputra, A., Haberl, J., Andrews, M. 2004. “Improving Building Design and Operation .of a Thai Buddhist Temple,” Energy and Buildings, Vol. 36, pp. 481-494.

  Or in his thesis:

  Atch Sreshthaputra, 2004. “Building Design and Operation for Improving Thermal Comfort in Naturally Ventilated Buildings in a Hot and Humid Climate,” Department of Architecture, Texas A&M University.

  In this work, which was calibrated to real data from the temple, Atch created a fictitious zone that did nothing, then proceeded to model the temple as a unconditioned zone, which worked with one exception that it did not handle the air flows. To get around this Atch ran CFD with a program that used a 3D model from the CHAM engine, then passed the airflows back to DOE-2 each hour to do the run, which calculated the dynamic heat transfer, then back to the CFD for the next hour’s airflow, etc., (taking 24 hours to simulate 24 hours on 2003ish Pentium, not exactly fast).

  Second, you can probably get an estimate of the daylighting using DOE-2.1e or DOE-2.2 that should be accurate for and sidelights if you know the internal geometry, including surface characteristics, since they use the split-flux method. More accurate daylighting simulations can be done with RADIANCE or annual simulations with DAYSIM, or perhaps one of the new annual variants of RADIANCE.

  Third, true calculations of thermal comfort would require CFD and a internal radiation network (should interior surfaces get hot or cold), which further complicate things.

  So, it can be done, but there are only a few efforts in the literature that give solid advice on how to do this, probably more as time goes on. Getting all this in one package is probably not there yet. Probably still a good topic for a Ph.D. thesis.


  Jeff




  8=!  8=)  :=)  8=)  ;=)  8=)  8=(  8=)  8=()  8=)  8=|  8=)  :=')  8=)8=?

  Jeff S. Haberl, Ph.D.,P.E., FASHRAE..............jhaberl at tamu.edu

  Professor............................................................Office Ph: 979-845-6507

  Department of Architecture.............................Lab Ph:979-845-6065

  Energy Systems Laboratory.............................FAX: 979-862-2457

  Texas A&M University.....................................77843-3581

  College Station, Texas, USA, 77843..................URL:www.esl.tamu.edu

  8=/  8=)  :=)  8=)  ;=)  8=)  8=()  8=)  :=)  8=)  8=!  8=)  8=? 8=)8=0


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

  From: bldg-sim-bounces at lists.onebuilding.org [bldg-sim-bounces at lists.onebuilding.org] on behalf of ali hamada fakra [fakra at univ-reunion.fr]
  Sent: Thursday, April 21, 2011 11:32 PM
  To: bldg-sim at lists.onebuilding.org
  Subject: [Bldg-sim] Bldg-sim] Modeling tool for daylight, Energy, Thermal comfort analysis


  Message: 2
  Date: Thu, 21 Apr 2011 10:47:20 +0530 (IST)
  From: Rathna Shree <rathnashreep at yahoo.in>
  To: bldg <bldg-sim at lists.onebuilding.org>
  Subject: [Bldg-sim] Modeling tool for daylight, Energy, Thermal
  comfort analysis
  Message-ID: <935834.21570.qm at web95906.mail.in.yahoo.com>
  Content-Type: text/plain; charset="utf-8"

  Dear All,

  Can you please suggest the best modeling tool which has the capabilities to perform Daylight simulation, Thermal comfort analysis in non AC spaces of a building and Energy simulation.

  I am using dialux for daylight simulation, Visual Doe for Energy simulation and Transys for Thermal comfort analysis. I am inputting the same details thrice in different softwares. So is there any software which can perform all the 3 analysis in one go.

  Regards,
  Rathnashree  


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

  Hello Rathmashree,

  I suggest you use CODYRUN. Is a french software dedicated to both research and consulting firms. You can make the 3 studies (Energy simulation, Daylight and thermal confort).that you want at the same time. For more information about this software, you can write to  Professor Harry Boyer (Founder of the software) to this mail : harry.boyer at univ-reunion.fr 

  Best regards,

  PhD / Engineer A. H. Fakra







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