Monday, August 25, 2014

Hyperlinks in IES and EULUMDAT files

A new version of EulumdatTools 0.11.2.v20140825 was published on August 25 at http://www.fold1.com/eulumdattools/. New is the detection of hyperlinks in the IES and EULUMDAT file editors. Holding down the Control (Windows) or Command (Mac) key and hovering over a URL will activate that URL. Clicking it will open a browser on said location.

Installation

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.:

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 http://www.fold1.com/eulumdattools/ 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
EN
Illuminance in lux
LLF
Light Loss Factor
a
width of space
b
length of space
$$\phi$$
Luminous flux of luminaire
UF
utilization factor from table
n
number of luminaires