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A long cylinder of 30-mm diameter, initially at a uniform temperature of 1100 K, is suddenly quenched in a large, constant- emperature oil bath at 350 K. The cylinder properties are k = 1.7 W/m-K, c = 1600 J/kg-K, and p = 400 kg/m³, while the convection coefficient is 54 W/m².K. Physical Properties Mathematical Functions Step 1 When deciding if the lumped capacitance method can be used, what is the value of the Biot number? Bic i Save for Later Using multiple attempts will impact your score. 100% score reduction after attempt 6 Step 2 Attempts: 0 of 7 used Submit Answer When using the one-term approximation for transient 1-D conduction, what is the value of the applicable Biot number? Use Table 5.1. Bi = i

A long cylinder of 30-mm diameter, initially at a uniform temperature of 1100 K, is suddenly quenched in a large, constant- emperature oil bath at 350 K. The cylinder properties are k = 1.7 W/m-K, c = 1600 J/kg-K, and p = 400 kg/m³, while the convection coefficient is 54 W/m².K. Physical Properties Mathematical Functions Step 1 When deciding if the lumped capacitance method can be used, what is the value of the Biot number? Bic i Save for Later Using multiple attempts will impact your score. 100% score reduction after attempt 6 Step 2 Attempts: 0 of 7 used Submit Answer When using the one-term approximation for transient 1-D conduction, what is the value of the applicable Biot number? Use Table 5.1. Bi = i

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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 Assume the Fourier number, Fo, is greater than or equal to 0.2 (note that you still need to calculate the Biot number, and possibly a second Biot number).

Step 3 Using the one-term approximation, if Bi in Table 5.1 were equal to 1.0, what would be the value of C1 for this problem? C₁ = i Save for Later Using multiple attempts will impact your score. 100% score reduction after attempt 6 Step 4 Fo= Use the one-term approximation method to solve for the Fourier number for reaching the surface temperature of 500 K. Save for Later Using multiple attempts will impact your score. 100% score reduction after attempt 6 Step 5 Solve for the time required for the surface of the cylinder to reach 500 K, in sec. t = i Attempts: 0 of 7 used sec Submit Answer Attempts: 0 of 7 used Submit Answer
Transcribed Image Text:Step 3 Using the one-term approximation, if Bi in Table 5.1 were equal to 1.0, what would be the value of C1 for this problem? C₁ = i Save for Later Using multiple attempts will impact your score. 100% score reduction after attempt 6 Step 4 Fo= Use the one-term approximation method to solve for the Fourier number for reaching the surface temperature of 500 K. Save for Later Using multiple attempts will impact your score. 100% score reduction after attempt 6 Step 5 Solve for the time required for the surface of the cylinder to reach 500 K, in sec. t = i Attempts: 0 of 7 used sec Submit Answer Attempts: 0 of 7 used Submit Answer
A long cylinder of 30-mm diameter, initially at a uniform temperature of 1100 K, is suddenly quenched in a large, constant- temperature oil bath at 350 K. The cylinder properties are k = 1.7 W/m-K, c = 1600 J/kg-K, and p = 400 kg/m³, while the convection coefficient is 54 W/m².K. Physical Properties Mathematical Functions Step 1 When deciding if the lumped capacitance method can be used, what is the value of the Biot number? Bic = i Save for Later Using multiple attempts will impact your score. 100% score reduction after attempt 6 Step 2 Attempts: 0 of 7 used Submit Answer When using the one-term approximation for transient 1-D conduction, what is the value of the applicable Biot number? Use Table 5.1. Bi = i
Transcribed Image Text:A long cylinder of 30-mm diameter, initially at a uniform temperature of 1100 K, is suddenly quenched in a large, constant- temperature oil bath at 350 K. The cylinder properties are k = 1.7 W/m-K, c = 1600 J/kg-K, and p = 400 kg/m³, while the convection coefficient is 54 W/m².K. Physical Properties Mathematical Functions Step 1 When deciding if the lumped capacitance method can be used, what is the value of the Biot number? Bic = i Save for Later Using multiple attempts will impact your score. 100% score reduction after attempt 6 Step 2 Attempts: 0 of 7 used Submit Answer When using the one-term approximation for transient 1-D conduction, what is the value of the applicable Biot number? Use Table 5.1. Bi = i
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