Question

Problem 8.3. The temperature of the tungsten filament in a 100 W light bulb is at 3000 C. Assume it emits as a black body and calculate: 09 (a) the area of the wire. wavelength of the max (c) the fraction emitted in: UV range Visible range 35 m25m Fig. 1 - IR range d) The fraction of energy that is transmitted through the glass window (see Fig.). e) The % of useful visible light produced by the light bulb.

Answer 1

In this solution some basic concepts and formulas of Radiation Heat Transfer are used. For more information, refer to any standard textbook or drop a comment below. Please give a Thumbs Up, if solution is helpful.

Solution :

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iev 5 v i sible

C认 te 12

The , e intao 33 으nnn efal 그5

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