Progetto SIMEA - Automatica - Università degli Studi di Padova

SIMEA Stato dell’arte energetica degli edifici
1.2.34. LESOSAI
64
Doc.No 20100610.SIMEA.MR.03
Versione 1
Computes the energy use of a building according to the
hourly and/or monthly simplified models described in the
European standard EN ISO 13790 and in Swiss standard, the
energy needs contained in the French standard RT2005, in the
Luxembourg Standard and in the Italian DLGs 192. It computes
as well transmission and ventilation heat loss as solar gains from
windows, sunspaces, double-skin facade, window solar collector
and transparent insulation walls. It can handle several zones and
rooms at various set-point temperatures and also helps in sizing
the peak heating power (EN 12831, SIA384.201) and the
cooling needs (EN ISO 13790). Results are given in a full report as well as in a Sankey diagram and a
monthly heat balance diagram. A sensitivity analysis can be automatically performed using a MonteCarlo
method. This provides a histogram of possible results. Lesosai 6.0 integrates different other calculations and
methodologies, including Life Cycle Analysis; Meteonorm, worldwide monthly and hourly weather
database; MaterialsDB.org database; USai: thermal transmission coefficient (EN ISO 6946), dynamic
characteristics (EN ISO 13786), condensation risk (EN ISO 13788, EN ISO 6946); multilingual: French,
Italian, English, German
1.2.34.1. Validation/Testing
Certification no: 344 (OFEN)
1.2.34.2. Expertise Required
Understanding heat balance in buildings.
1.2.34.3. Users
First version distributed in 1991. Version 6.0 (2008), more than 1,500 users.
1.2.34.4. Audience
Architects, building physics consultants, engineers.
1.2.34.5. Input
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.
1.2.34.6. Output
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.
1.2.34.7. Computer Platform
PC-compatible, Windows 98 or higher