Monday, August 4, 2014

Exporting UF Tables and new expiry

A new version of EulumdatTools 0.11.1.v20140806 was published on August 6 at to replace the non-working 0.11.0.v20140804. In addition to the existing export of "ERCO-like" E/100lux/m2 tables EulumdatTools can now also export "UF" or Utilization Factor tables in line with LiTG publication 3.5 directly from correct EULUMDAT files.
  • Export of UF tables with user selectable reflectance triplets for Ceiling, Wall and Working Plane.
  • Changed the hard coded expiry date for this version to 2015-01-01.
  • The version number was updated to 0.11.0.
The Utilisation Factor method uses the following formula to calculate the illuminance EN: $$E_N = \frac{ LLF . n . \phi . UF }{a . b}$$ The required number of luminaires n can be calculated with the following formula: $$n = \frac{ E_N . a. b }{\phi . UF . LLF}$$ Where
Illuminance in lux
Light Loss Factor
width of space
length of space
Luminous flux of luminaire
utilization factor from table
number of luminaires

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For use in Eclipse you can use the standard Eclipse update site For stand alone RCP versions of EulumdatTools choose your platform and perform update after installation.: