Engineering, 17.02.2020 20:11 amakayla57
A stainless steel billet (k = 13 Btu/hr-ft-F, α = 0.24 ft2 /hr), 4 inches in diameter, is passing through a 20 ft. long heat-treating furnace. The initial billet temperature is 200°F, and it must be raised to a minimum temperature of 1500°F before working. The heat transfer coefficient between the furnace gases and the billet surface is 6 Btu/hr ft2 F, and the furnace gases are at 2200°F. At what maximum velocity (ft/min.) can the billet travel through the furnace and satisfy these conditions?
Answers: 2
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A stainless steel billet (k = 13 Btu/hr-ft-F, α = 0.24 ft2 /hr), 4 inches in diameter, is passing th...
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