Air flow distribution model for multizone structures; takes wind, stack and HVAC into account; allows for crack flow, flow through large openings, and single-sided ventilation. Includes pollution transport model. The structure of COMIS (Conjunction of Multizone Infiltration Specialists) was developed at an LBNL workshop in 1987-88.
multizone airflow, pollution transport
Low-level computer skills required to install program; basic HVAC knowledge necessary.
More than 100 in 15 countries.
Architects, HVAC engineers, physicists.
Air-flow network, operating schedule, weather data; interactive input program (IISiBat) available.
Preformatted hourly data; user designs reports; graphical output available.
PC-compatible; source code available for implementation on UNIX-computer; IISiBat graphical interface available for Windows 95.
Detailed analysis with user-defined schedules; takes many flow paths into account;well documented; has been validated by the International Energy Agency's Energy Conservation in Buildings and Community Systems Programme, Annex 23 on Multizone Air Flow Modeling. Graphical user interface, IISiBat, allows for rapid development of input file.
Nodal model; no CAD-like interface for describing the geometries.
Lawrence Berkeley National Laboratory
Mail Stop 90-3074
Version 3.0, IISiBat, documentation and tutorial available free of charge; can be downloaded at: evl.cstb.fr/iisibat.htm
290 Route des Lucioles, BP 209
06904 Sophia Antipolis
Tel: +33 (0)4 93 95 67 46
Fax: +33 (0)4 93 95 67 33