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For the power tower geometry from the previous problem, assume that the absorber height is equal to

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For the power tower geometry from the previous problem, assume that the absorber height is equal to its diameter, and that the diameter is that found in part (b) above. If all the light from an overhead sun that hits the circle of radius 100 m containing the reflecting mirrors were to be reflected to the absorber, what would be the effective concentration of the mirror configuration as a solar concentrator? Assume 1000 W/m2 insolation from an overhead sun. What would be the temperature of the absorber if it was in radiative equilibrium with the reflected incoming radiation? Do you think that this is a realistic answer? Why or why not?

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Let the diameter of the absorber be d and the radius of the array be R then t...View the full answer


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