1. Suppose a hollow cylinder made of SS 316 with the thermal conductivity of 16.26 W/m...

1. Suppose a hollow cylinder made of SS 316 with the thermal conductivity of 16.26 W/m K, has inner diameter and thickness of 0.4 and 0.05 m, respectively and length of 1 m. Find the outer diameter of the cylinder (in meter)

2. Calculate the thermal energy generation, if the volumetric heat generation inside the cylinder equal to 2.1 x 10^5 W/m^3

3. If the outer diameter of cylinder is changed to 0.46 m and the cylinder is cooled by water at the temperature of 22°C, the heat transfer coefficient of fluid is 1100 W/m^2 K, and the volumetric heat generation inside the cylinder equal to 1 x 10^5 W/m^3 , calculate the steady state outer surface temperature (in °C)

4. By using the outer diameter of problem no 3, calculate the convective heat transfer (qconv) if the fluid and outer surface temperature at 25°C and 40°C, respectively, and the heat transfer coefficient of fluid change to 700 W/m^2

5. By using the outer diameter of problem no 3, the fluid and outer surface temperature at 25°C and 45°C, respectively, and heat transfer coefficient of fluid 1400 W/m^2 K. Calculate the inner surface temperature (in °C)

6. By using the outer diameter of problem no 3, and outer surface temperature of problem no 5, calculate the conductive heat transfer (qcond), if the inner surface temperature is 155°C (answer in unit kilo Watt)

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Expert Solution

samet mamat answered 1 year ago

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