A Deep-sea Diver is wearing a wetsuit in cold water. (Natural convection, radiative transfer is negligible). The following data are given: Water Temperature Te= 10 Degrees Celsius. Wetsuit thickness is equivalent to a 8mm neoprene rubber (thermal conductivity is 0.19 W/m-K), Skin thickness is 1.45mm, Skin thermal conductivity is 0.21 W/m-k. Body temperature below skin Tb= 37 degrees Celsius. Average Air gap thickness is 1mm, air thermal conductivity = 0.027 W/m-K. a) Draw a complete equivalent thermal circuit and show all parameters. b) Calculate the flux of heat loss from the diver (in W/m^2 of body surface area) c) Calculate the temperature of the skin outer surface (Ts)

A Deep-sea Diver is wearing a wetsuit in cold water. (Natural convection, radiative transfer is negligible). The following data are given: Water Temperature Te= 10 Degrees Celsius. Wetsuit thickness is equivalent to a 8mm neoprene rubber (thermal conductivity is 0.19 W/m-K), Skin thickness is 1.45mm, Skin thermal conductivity is 0.21 W/m-k. Body temperature below skin Tb= 37 degrees Celsius. Average Air gap thickness is 1mm, air thermal conductivity = 0.027 W/m-K. a) Draw a complete equivalent thermal circuit and show all parameters. b) Calculate the flux of heat loss from the diver (in W/m^2 of body surface area) c) Calculate the temperature of the skin outer surface (Ts)

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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Concept explainers

Conduction and Convection

When energy travels from one object to another it is said to have undergone heat transfer. Heat transfer is nothing but the transfer of thermal energy or internal energy from one thing to another, like e.g., when a vessel with water, kept on top of a burner, heats up because of the flame underneath it.

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A Deep-sea Diver is wearing a wetsuit in cold water. (Natural convection, radiative transfer is negligible).
The following data are given: Water Temperature Te= 10 Degrees Celsius. Wetsuit thickness is
equivalent to a 8mm neoprene rubber (thermal conductivity is 0.19 W/m-K), Skin thickness is 1.45mm,
Skin thermal conductivity is 0.21 W/m-k. Body temperature below skin Tb= 37 degrees Celsius. Average
Air gap thickness is 1mm, air thermal conductivity = 0.027 w/m-K.
a) Draw a complete equivalent thermal circuit and show all parameters.
b) Calculate the flux of heat loss from the diver (in W/m^2 of body surface area)
c) Calculate the temperature of the skin outer surface (Ts)
d) Based on your calculations is the wetsuit adequate to keep the diver warm enough? Why?

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