COMIS

COMIS logo.

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.

Keywords

multizone airflow, pollution transport

Validation/Testing

N/A

Expertise Required

Low-level computer skills required to install program; basic HVAC knowledge necessary.

Users

More than 100 in 15 countries.

Audience

Architects, HVAC engineers, physicists.

Input

Air-flow network, operating schedule, weather data; interactive input program (IISiBat) available.

Output

Preformatted hourly data; user designs reports; graphical output available.

Computer Platform

PC-compatible; source code available for implementation on UNIX-computer; IISiBat graphical interface available for Windows 95.

Programming Language

FORTRAN

Strengths

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.

Weaknesses

Nodal model; no CAD-like interface for describing the geometries.

Contact

Company:

Lawrence Berkeley National Laboratory

Address:

Mail Stop 90-3074
1 Cyclotron Road
Berkeley, California 94720
United States

Telephone:

(510) 486-4021

Facsimile:

(510) 486-6658

E-mail:

envhef@epb9.lbl.gov

Website:

http://www-epb.lbl.gov/comis

Availability

Version 3.0, IISiBat, documentation and tutorial available free of charge; can be downloaded at: evl.cstb.fr/iisibat.htm

CSTB
290 Route des Lucioles, BP 209
06904 Sophia Antipolis
France

Tel: +33 (0)4 93 95 67 46
Fax: +33 (0)4 93 95 67 33
Email: iisibat@cstb.fr