Gives architects relevant information regarding the use of daylight, at the very first stage of the design process.
This software allows users to: - Calculate daylight factor values on the work plane.
- Estimate daylighting autonomy (according to the lighting requirements, Leso-DIAL estimates the time during which artificial lighting could be switched off (mid-Europe climate).
- Optimise the daylighting performance. Based on the use of fuzzy logic rules, the diagnosis facility of Leso-DIAL indicates out the possible weak points of your design.
- Allows the user to compare his design with pre-simulated and/or existing real rooms stored in a database.
Up to 30 openings can be described (6 for each facade and the roof).
Keywords
Daylighting, early design stage, user-friendliness
Validation/Testing
N/A
Expertise Required
The use of this tool does not require any learning time and no specific knowledge is needed.
A Lexicon is accessible from any stage of the design. About 100 terms of the lighting vocabulary are presented in a richly illustrated way.
Users
Architects & engineers offices, Universities (International)
Audience
Architects, engineers, students in architecture and building sciences
Input
Description of both photometry and geometry is based on the handling of graphic and linguistic items (precise numerical values may also be used).
Output
Daylighting performance (CIE overcast sky),
daylight factor values on the workplane (isolines and tables),
daylighting autonomy on the workplane (isolines and tables), and
recommendations (linguistic diagnosis).
Computer Platform
PC-compatible, 386 or higher, Windows 3.1 or higher.
Programming Language
Asymetrix ToolBook
Strengths
Very easy description and use, fast calculation. Particularily well adapted to testing various configurations in the early design stages.
English, French and German versions.
Weaknesses
Simplified calculation method (split-flux) dedicated for shoebox shape. Only one climate (mid-Europe) for the first version.
Contact
Availability
Site-license software packages for CHF 550.- purchased through LESO-EPFL at the above address. Check the WWW pages for additional information. 50% discount for education.
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