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?

Answers: 3

Show answers

Other questions on the subject: Engineering

Engineering, 04.07.2019 18:10, tjeffers90028

Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -26°c with a volumetric flow rate of 0.18 m3/s. refrigerant exits at 9 bar, 70°c. changes in kinetic and potential energy from inlet to exit can be ignored. determine the volumetric flow rate at the exit, in m3/s, and the compressor power, in kw.

Answers: 1

continue

Engineering, 04.07.2019 18:10, michellerosas

Ajournal bearing has a journal diameter of 3.250 in with a unilateral tolerance of 20.003 in. the bushing bore has a diameter of 3.256 in and a unilateral tolerance of 0.004 in. the bushing is 2.8 in long and supports a 700-lbf load. the journal speed is 900 rev/min. find the minimum oil film thickness and the maximum film pressure for both sae 20 and sae 20w-30 lubricants, for the tightest assembly if the operating film temperature is 160°f. a computer code is appropriate for solving this problem.

Answers: 3

continue

Engineering, 04.07.2019 18:10, wyattlb97

Water at the rate of 1 kg/s is forced through a tube with a 2.5 cm inner diameter. the inlet water temperature is 15°c, and the outlet water temperature is 50°c. the tube wall temperature is 14°c higher than the local water temperature all along the length of the tube. what is the length of the tube?

Answers: 3

continue

Engineering, 04.07.2019 18:10, tobyhollingsworth178

Which from the following instrument is commonly used to detect the high pitch butzing sound in bearings? [clo4] a)-digital ultrasonic meter b)-infrared camera c)-spectroscopic d)-vibrometer

Answers: 2

continue

You know the right answer?

Radioactive materials are to be stored in a spherical container and stored underwater to facilitate...