Lead shot may be manufactured by dropping molten lead droplets into water Assuming that the droplets have the properties of solid lead at 300C, calculate the time for the center temperature to reach 120C when the water is at 100C with h 5000 W m2 C, d 1 5 mm ...

T i 300C T 0 120C d 15 mm r 0 0 ...

Lead shot may be manufactured by dropping molten-lead droplets into water. Assuming that the droplets have the

Question:

Lead shot may be manufactured by dropping molten-lead droplets into water. Assuming that the droplets have the properties of solid lead at 300ºC, calculate the time for the center temperature to reach 120ºC when the water is at 100ºC with h = 5000 W/m2 · ºC, d = 1.5 mm.