**Last Updated: 10/20/2015**

**Radiation
View Factors - Perpendicular Plates **

The first of the four worksheets finds
the view factor for perpendicular plates with a common edge (from the
well-known analytical solution) and draws an isometric view of them on the
screen. The user inputs the length of the common edge as well as the second
dimension of the two plates. This worksheet and the one for parallel plates
were developed in part to help in verifying the view factor values computed by
our much more versatile Visual Basic view factor module.

**Radiation
View Factors - Coaxial Disks **

The viewfactor for coaxial,
parallel disks is computed from the analytical solution and then they are drawn
to scale on the screen. The user inputs the radii of the two disks (emitter and
receiver) and the separation distance.

**Radiation View Factors -
Coaxial Cylinders**

View factors for finite-length, coaxial cylinders are computed using a combination of analytical solutions and view factor algebra. The user inputs the radii of the two cylinders and their length. All nine relevant view factors and a scale drawing are returned.

**Radiation
View Factors - Parallel Rectangles **

On the fourth worksheet the view factor for parallel, aligned plates is computed from the analytical solution. The user inputs the length and width of the two rectangles and their separation distance. The view factor and a scale drawing are returned.

**Download View Factor Spreadsheet **

**References: **

**Howell, J.R., A Catalog of Radiation Heat
Transfer Configuration Factors **

**Modest, M.F., Radiative Heat Transfer, 2nd Ed.,
McGraw-Hill, 2003. **

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