Engineering

Engineering, 20.07.2019 02:10, heybro12

Radioactive wastes are temporarily stored in a spherical container, the center of which is buried a distance of 10 m below the earth's air-soil surface. the outside diameter of the container is 2.0 m, and 500 w of heat are released as a result of radloactive decay. if the soll surface temperature is 25*c, what is the outslde surface temperature of the contalner?

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Physics, 12.07.2019 18:10, vintageandre

Radioactive wastes generating heat at a rate of 4.5 x 106 w/m3 are contained in a spherical shell of inner radius 0.25 m and outside radius 0.30 m with a thermal conductivity 35.3 w/m·k. if the container is submerged in water at a temperature ∞ 10°c with a convective coefficient of 500 w/m2·k, find the inside and outside surface temperatures of the container.

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Engineering, 26.07.2019 20:20, lilroach4

Aspherical tank of radius 1 m containing radioactive material is buried in the earth. the distance between the earth's surface and the tank center is 4 m. heat release due to radioactive decay in the tank is 500 w. calculate the steady temperature of the tank's surface if the earth's surface is at 20°c and the thermal conductivity of the earth at this location is k 1.0w(m k)

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Engineering, 05.08.2019 19:10, parisw8

Radioactive wastes are temporarily stored in a spherical container, the center of which is buried a distance of 10 m below the earth's surface. the outside diameter of the container is 2 m, and 500 w of heat are released as a result of radioactive decay. if the soil surface temperature is 20°c, what is the outside surface temperature of the container under steady-state conditions? the thermal conductivity of soil is k = 0.52 w/mk.

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Engineering, 30.09.2019 21:00, mervesena01

Radioactive materials are to be stored in a spherical container and stored underwater to facilitate convective cooling. the spherical tank is composed of an inner shell made of lead (k=35.3 w/m/k) with an inner radius r1=0.25m and an outer radius r2=0.30m, and an outer shell made of stainless steel (k=15.1 w/m/k) with an outer radius r3=0.31m. the inner cavity is completely filled with radioactive waste that generates heat a a rate q(dot)=5x10^5 w/m^3. the water temperature is 10 c.if the tank is stored in ocean water with h=500 w/m^2/k, find the max temperature in the lead (melting point 328 c). will the lead melt?

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