The spectral absorptivity of aluminum coated with athin
Chapter 12, Problem 12.139(choose chapter or problem)
The spectral absorptivity of aluminum coated with athin layer of silicon dioxide may be approximated as??,1?0.98 for ???cand ??,2?0.05 for ???cwhere the cutoff wavelengthis ?c?0.15?m undernormal circumstances.(a) Determine the equilibrium temperature of a flatpiece of the coated aluminum that is exposed tosolar irradiation, GS?1368 W/m2on its uppersurface. The opposite surface is insulated.(b) The cutoff wavelength can be modified by vary-ing the coating thickness. Determine the value of?cthat will maximize the equilibrium tempera-ture of the surface.
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer