[bldg-sim] Daysim 2.1

["Reinhart, Christoph" <Christoph.Reinhart@xxxxxxxxxxxxxx>]

Dear colleagues,

 

My apologies for any cross postings.

 

The National Research Council Canada and the Fraunhofer Institute for Solar Energy Systems have released version 2.1 of the Daysim daylighting analysis tool. Daysim is based on LBNL's Radiance software and combines the Perez sky model with a daylight coefficient approach to effectively predict the annual daylight availability (daylight factor and daylight autonomy) in buildings for multiple sites worldwide (you can import EnergyPlus epw climate files). Daysim further features a user behavior model which allows to compare the electric lighting use for manual and automated controls (occupancy sensor, photocell control). The software runs under Windows and Linux OS and can be downloaded from www.daysim.com. The following new features have been added since version 2.0:

• extended tutorial: an extensive document to help newcomers to get started with daylight simulations
• step-by-step instructions of how to import building scenes from AutoCAD, SketchUp, and Ecotect into Daysim
• a list of case studies of how your colleagues have used Daysim in actual building projects
• improved simulation output in html-format
• improved JAVA GUI with an extensive help file system
• based on Radiance version 3R6P1(latest version)
• the new version allows to model Radiance function file materials (transdata, etc.)

Your comments/suggestions are appreciated. Best regards,

 

Christoph 

Christoph Reinhart, Ph.D.                        Associate Research Officer

National Research Council Canada         NRC Construction

1200 Montreal Road M-24, Ottawa          Ontario K1A 0R6 Canada

tel: (613) 993-9703                                  fax: (613) 954 3733                

e-mail: christoph.reinhart@xxxxxxxxxxxxxx

 

The Lightswitch Wizard (initial design)    www.buildwiz.com 

DAYSIM (expert software)                        www.daysim.com 

Radiance Workshop 2005                        http://irc.nrc-cnrc.gc.ca/ie/light/RadianceWorkshop2005  

 

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