ASAP please (a)Two surfaces, A and B has a temperature of 4500 K and different spectralemissivity as shown in Figure 3.1. By assuming Stefan Boltzmann constant is5.67 x 10* W/m²-K', determine:i.the average emissivity for each surface,emissive power for each surface,iii.wavelength of surface A at which spectral emissive power will be amaximum, andiv.which surface is more suitable as a solar absorber? Justify your answer.0.70.60.20.20.10.1A. umA. um(a)(b)Figure 3.1 Variation of spectral; (a) Surface A, (b) Surface B

Given: The temperature, T = 4500 K The Stefan Stefan Boltzmann’s constant, σ = 5.67x10^-8 W/m^2.K

(a) Two surfaces, A and B has a temperature of 4500 K and different spectral emissivity as shown in Figure 3.1. By assuming Stefan Boltzmann constant is 5.67 x 10* W/m-K', determine: i. the average emissivity for each surface, ii. emissive power for each surface, wavelength of surface A at which spectral emissive power will be a maximum, and

(a) Two surfaces, A and B has a temperature of 4500 K and different spectral emissivity as shown in Figure 3.1. By assuming Stefan Boltzmann constant is 5.67 x 10* W/m-K', determine: i. the average emissivity for each surface, ii. emissive power for each surface, wavelength of surface A at which spectral emissive power will be a maximum, and

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Problem 1.1MA

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Concept explainers

Mechanisms of heat transfer

Heat transfer is an essential discipline in thermal engineering that deals with the transfer, conversion, usability, and creation of heat or thermal energy. Transfer of heat occurs through various mechanisms like conduction, convection, radiation, and change of phases. All these mechanisms have distinct characteristics, but these mechanisms can simultaneously occur in an identical system.

Question

ASAP please

(a)
Two surfaces, A and B has a temperature of 4500 K and different spectral
emissivity as shown in Figure 3.1. By assuming Stefan Boltzmann constant is
5.67 x 10* W/m²-K', determine:
i.
the average emissivity for each surface,
emissive power for each surface,
iii.
wavelength of surface A at which spectral emissive power will be a
maximum, and
iv.
which surface is more suitable as a solar absorber? Justify your answer.
0.7
0.6
0.2
0.2
0.1
0.1
A. um
A. um
(a)
(b)
Figure 3.1 Variation of spectral; (a) Surface A, (b) Surface B

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