Carbon steel (AISI 1010) shafts of 0.15-m diameter are heat treated in a gas-fired furnace whose gases are at 1000 K and provide a convection coefficient of 90 W/m²K. If the shafts enter the furnace at 300 K, how long must they remain in the furnace to achieve a centerline temperature of 800 K? (k=51.2 W/mK, c=541 J/kgK, p=7832 kg/m³, a=1.21x10-5 m²/s) a. 2802 s O b. 1732 s О с. 1636 S O d. 2212 s е. 1558 s
Carbon steel (AISI 1010) shafts of 0.15-m diameter are heat treated in a gas-fired furnace whose gases are at 1000 K and provide a convection coefficient of 90 W/m²K. If the shafts enter the furnace at 300 K, how long must they remain in the furnace to achieve a centerline temperature of 800 K? (k=51.2 W/mK, c=541 J/kgK, p=7832 kg/m³, a=1.21x10-5 m²/s) a. 2802 s O b. 1732 s О с. 1636 S O d. 2212 s е. 1558 s
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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![Carbon steel (AISI 1010) shafts of 0.15-m diameter are heat treated in a gas-fired furnace whose gases are
at 1000 K and provide a convection coefficient of 90 W/m²K. If the shafts enter the furnace at 300 K, how
long must they remain in the furnace to achieve a centerline temperature of 800 K? (k=51.2 W/mK, c=541
J/kgK, p=7832 kg/m³, a=1.21x10-5 m²/s)
a. 2802 s
O b. 1732 s
О с. 1636 s
O d. 2212 s
e. 1558 s](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb6498ff7-7567-4fe4-ad67-d860eda31eba%2Fcb7add3c-7da5-48d0-8339-b74a29551db6%2F3s9gmks_processed.png&w=3840&q=75)
Transcribed Image Text:Carbon steel (AISI 1010) shafts of 0.15-m diameter are heat treated in a gas-fired furnace whose gases are
at 1000 K and provide a convection coefficient of 90 W/m²K. If the shafts enter the furnace at 300 K, how
long must they remain in the furnace to achieve a centerline temperature of 800 K? (k=51.2 W/mK, c=541
J/kgK, p=7832 kg/m³, a=1.21x10-5 m²/s)
a. 2802 s
O b. 1732 s
О с. 1636 s
O d. 2212 s
e. 1558 s
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