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Unformatted text preview: whole window? b. Horried at the energy you are wasting, you install a double-paned window. It has the same amount of glass, but now there are two 5 mm-thick slabs, with a 1 mm air gap ( k = . 002W/mK) sandwiched between them. Now compute the temperature prole T ( x ), the heat ux q per unit area, and the total heat loss per unit time. c. Sketch the temperature proles for the single-pane and double-pane windows. d. Why, in this case, does the order of the materials matter? In other words, what would happen if you put the air layer outside the two panes of glass? If it were a layer of, e.g. plexiglass, could you rearrange the layers? 4. Which is colder bathroom oor tiles or the bathmat? Which feels colder, the tiles or the bathmat? Why?...
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- Fall '10
- Chemical Engineering