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A current of 200 A is passed through a stainless-steel wire k=19 W/m Cj 3 mm in diameter. The electric resistance of the wire is 0.099 12. and the length of the wire is 1 m The wire is submerged

 A current of 200 A is passed through a stainless-steel wire [k=19 W/m. Cj 3 mm in diameter. The electric resistance of the wire is 0.099 12. and the length of the wire is 1 m. The wire is submerged in a liquid at 110-C and experiences a convection heat-transfer coefficient of 4 kW/m². c. (a) Calculate the center temperature of the wire. (b) The rate of heat transfer (c) The surface temperature (d) Calculate the critical radius and the corresponding insulation thermal conductivity of 0.2 mm thickness.

Aug 19 2020 View more View Less

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