Answered: Thermal energy is being transferred…

Thermal energy is being transferred through a 0.8 mm layer of human skin at a rate of 1.1 x 104 w/m?. The room temperature is 27 °C. (a) Determine the thermal conductivity of the skin.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

Note: You’re free to make assumptions if you think you need to have more information to solve this problem. Please state them clearly in your answer, if you need to make such assumptions

Thermal energy is being transferred through a 0.8 mm layer of human skin
at a rate of 1.1 x 104 W/m?. The room temperature is 27 °C.
(a) Determine the thermal conductivity of the skin.

(b) To reduce heat flux, the skin is wrapped with a clothing material. What should be
the thickness of the clothing material covering the surface of this skin tissue to
reduce the heat flux to half of its original value? What is the temperature at the
skin-clothing material interface?

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