energy solutionsfor better buildings
Lesosai 6.0
1247 visits
Posting Date | 19 January 2010
Type of tool | Benchmarking tool, Simulation Tool, Energy Audit model, Evaluation System, Planning tool, Simulation Tool
Countries where the tool has been developed | Switzerland
Country where the tool is in use | France , Italy , Liechtenstein , Luxembourg , Switzerland
Geographic Coverage | International
Target Group | Building professionals
Conditions of availability | Sale
Price | 530
Validation/testing information | SIA380/1
RT2005
Luxembourg
Number of users | 2000
Input of the tool | For each building zone: rooms, floor area, volume, air change rate, areas and U-values of all envelope components, orientation, area and type of glazing for windows and passive solar devices, occupation, etc. Input is object oriented and clearly organized in successive windows.
Output of the tool | Full report including transmission heat-loss coefficient for each component, ventilation heat loss, monthly, and annual heat balance including losses, internal and solar passive heat gains. Sankey diagram illustrating the heat flows through main building parts, monthly heat balance.
Strengths | Complies with European standard EN ISO 13790. User-friendly interface, official climate (Switzerland, Italy, Germany, France, Romania, and Luxembourg) and Meteonorm, characteristics of glazing materials (EN 673) and transparent insulation, solar collectors, direct connection with producer materials databases. U value calculation. Expandable user's database. German, French, English, and Italian versions. The product has 23 years in the market performing thermal modeling of buildings. Prints different official reports.
Weaknesses | N/A
Computer platform | Windows
Publisher | E4tech Software SA
Publisher URL | E4tech Software SA
Source of funding | Private
Tool Languages | English , French , German , Italian
LESOSAI 6.0 is a programme for thermal energy calculation and certification of buildings comprising one or more heated or cooled zones. It is designed primarily for building and thermal engineers and architects. The software supports several languages: English, French, German and Italian. Users can choose from several calculation methods (see Countries and Standards opposite).
Illustrations | 
Description |
LESOSAI 6.0 is a programme for thermal energy calculation and certification of buildings comprising one or more heated or cooled zones. It is designed primarily for building and thermal engineers and architects. The software supports several languages: English, French, German and Italian. Users can choose from several calculation methods (see Countries and Standards opposite).
LESOSAI 6.0 allows the calculation of environmental impacts of energy consumption, taking into account the energy used, but also considering the construction materials of the building. This calculation is based on a life cycle of a building and uses the list of impacts provided by the KBOB (extracted from the Ecoinvent database), and methodology consistent with the SIA 2032 technical specifications.
In order to simulate buildings in many places throughout the supported countries, Lesosai integrates the weather data generator, Météonorm.
To calculate the thermal conductance coefficient (U-value), Lesosai includes USai, which can also synchronise the databases of materials with several producers who participated in the www.materialsdb.org project.
LESOSAI 6.0 also supports the calculation of heating power according to EN 12831 and SIA 384.201 by zone or by room.
Tool website URL(s) | http://www.lesosai.com/, http://www.materialsdb.org/
Submitted by Flavio Foradini (E4tech software SA)