1) Based on the example done in class for the annulus between rotation cylinders, consider the...

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1) Based on the example done in class for the annulus between rotation cylinders, consider the following. The angular velocity of the outer cylinder is 7908 rpm. The outer cylinder has a radius of 5.06 cm, and the clearance between the cylinders is 0.027 cm. The annulus is filled with oil. What is the maximum temperature in the oil if both wall temperatures are 158 °C? The oil properties are: viscosity 92.3 cp, specific gravity 1.22, conductivity XXXXXXXXXXcal/(sec-cm-°C).
	
Document Preview: 1)  Based on the example done in class for the annulus between rotation cylinders, consider the 
following.  The angular velocity of the outer cylinder is 7908 rpm.  The outer cylinder has a radius of 5.06 
cm, and the clearance between the cylinders is 0.027 cm.  The annulus is filled with oil.  What is the 
maximum temperature in the oil if both wall temperatures are 158 °C?  The oil properties are: viscosity 
92.3 cp, specific gravity 1.22, conductivity XXXXXXXXXXcal/(sec-cm-°C).

Robert · Accepted Answer

Let R is the radius of outer cylinder. The surface temperature of inner and outer cylinder be 
respectively T1 and T2.

1) Based on the example done in class for the annulus between rotation cylinders, consider the following. The angular velocity of the outer cylinder is 7908 rpm. The outer cylinder has a radius of...

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