A body having a cylindrical shape of length equals to 1.9 m and diameter equals to 400 mm is inside a room where the ambient temperature is equal to 300 K. The initial temperature of the body is equal to 350 K. The heat convective coefficient is equal to 1. W/m^2.K. The lumped capacitance method is used k is less than 5.2 W/m.K Choose. To apply the lumped capacitance method, the Biot number should be k is less than 5.2 W/m.K For steady state problems Greater than 0.1 Less than 0.1 What condition should the thermal conductivity k verify in order to apply the lumped capacitance For transient problems k is less than 3.1 W/m.K method. k is greater than 0.5 W/m.K kis greater than 1.17 W/m.K

A body having a cylindrical shape of length equals to 1.9 m and diameter equals to 400 mm is inside a room where the ambient temperature is equal to 300 K. The initial temperature of the body is equal to 350 K. The heat convective coefficient is equal to 1. W/m^2.K. The lumped capacitance method is used k is less than 5.2 W/m.K Choose. To apply the lumped capacitance method, the Biot number should be k is less than 5.2 W/m.K For steady state problems Greater than 0.1 Less than 0.1 What condition should the thermal conductivity k verify in order to apply the lumped capacitance For transient problems k is less than 3.1 W/m.K method. k is greater than 0.5 W/m.K kis greater than 1.17 W/m.K

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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What is the lumped capacitance method is used

A body having a cylindrical shape of length equals to 1.9 m and diameter equals to 400 mm is inside a room where the ambient
temperature is equal to 300 K. The initial temperature of the body is equal to 350 K. The heat convective coefficient is equal to 1.3
W/m^2.K.
The lumped capacitance method is used
k is less than 5.2 W/m.K
Choose...
To apply the lumped capacitance method, the Biot number should be
k is less than 5.2 W/m.K
For steady state problems
Greater than 0.1
Less than 0.1
What condition should the thermal conductivity k verify in order to apply the lumped capacitance
For transient problems
k is less than 3.1 W/m.K
k is greater than 0.5 W/m.K
k is greater than 1.17 W/m.K
method.

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