Therm

Therm logo.

Analysis of two-dimensional heat transfer through building products. Includes a graphical user interface that allows users to draw cross sections of fenestration and other building products, which can then be analyzed by an automatic mesh generator and finite-element heat transfer algorithms. Results are displayed graphically. Screen Shots

Keywords

two-D heat transfer, building products, fenestration

Validation/Testing

N/A

Expertise Required

Understanding of heat flows through building products; knowledge of properties of materials useful.

Users

Version 5.2 in use by over 1000 users internationally.

Audience

Building product developers, designers, analysts determining window ratings (NFRC).

Input

Graphic user interface; user enters cross sections of the building products, can read .DXF files and bitmaps.

Output

U-factors, isotherms, color-flooded isotherms, heat-flux vector plot, and color-flooded lines of constant flux.

Computer Platform

Requires Windows 98, Windows NT, Windows 2000, or Windows XP. Pentium or better. At least 64MB of random access memory (RAM), 128 MB of RAM is preferred for optimum operation. Hard disk drive with at least 15 megabytes of available disk space.

Programming Language

C, FORTRAN

Strengths

State-of-the-art user interface; automatic meshing/re-meshing completely user transparent; advanced radiation and convection models can be incorporated into the finite element analysis algorithms used. The current version is 32-bit, which is faster than previous versions.

Weaknesses

..

Contact

Company:

Lawrence Berkeley National Laboratory

Address:

Mail Stop 90-3111
1 Cyclotron Road
Berkeley, California 94720
United States

Facsimile:

+1 (510) 486-4089

E-mail:

THERMHelp@lbl.gov

Website:

http://windows.lbl.gov/software/therm/therm.html

Availability

Available at no cost by downloading from the website.