Uses two-dimensional finite-volume analysis to evaluate heat transfer
through complex building components. FRAME is part of the
FRAMEplus toolkit for analysis of windows, doors, walls, roofs and
below-grade assemblies. Users draw building components as assemblies
of cross-sections. Any interior or exterior environmental condition can be
applied. .DXF files and VISION4 files can be imported to speed up data
entry. Results are displayed graphically and are used to determine heat
transfer, potential for thermal bridging and surface condensation. The
FRAME4 simulations (when combined with VISION) are an equal
alternative to testing to determine the U-value and solar heat gain coefficient of windows and doors. The U.S. National
Fenestration Rating Council and Canadian Standard Association recognize FRAME as the only acceptable computer program
to determine heat transfer through opaque portions of windows, doors and curtainwalls. FRAME was used to generate
window and door U-values in the ASHRAE Handbook of Fundamentals.
Keywords
fenestration, framing, heat transfer, building components,
thermal characteristics
Validation/Testing
N/A
Expertise Required
A basic understanding of heat transfer and computer familiarity is helpful.
Users
Over two thousand users in 22 countries.
Audience
Window manufacturers, engineers, architects, analysts determining window ratings for NFRC and CSA certification.
Input
The user draws building components as an assembly of unique cross-sections of uniform material. The program contains a library of over 100 materials and calculates heat transfer for internal cavities. Mouse or cursor input. FRAME can import .DXF format CAD files, VISION4 and WINDOW files.
Output
U-values, local heat flow and temperature. A graphical display of heat flow and isotherm plots is superimposed on component drawing.
Computer Platform
PC-compatible 386 or higher, running in DOS or Windows 95.
Programming Language
C
Strengths
FRAME is simple and easy to use. Mouse or cursor input, pull-down menus, point-and-click icons. FRAME runs
are very rapid. It has an extensive library of building materials and pre-drawn spacer assemblies.
Weaknesses
Because of the complexity of some assemblies (e.g., window frame), it can take up to one to two hours to draw
the assembly to be simulated.
Contact
Availability
FRAME is part of the FRAMEplus toolkit. The toolkit sells for $295. US ($350. CDN). A demo version can be downloaded from the Enermodal web page.
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