question archive Aluminum balls are heated up to 580 K and then exposed to air at 283 K to cool down with an average heat transfer coefficient of 25 W/m2·K

Aluminum balls are heated up to 580 K and then exposed to air at 283 K to cool down with an average heat transfer coefficient of 25 W/m2·K

Subject:Mechanical EngineeringPrice:9.82 Bought3

Aluminum balls are heated up to 580 K and then exposed to air at 283 K to cool down with an average heat transfer coefficient of 25 W/m2·K. The balls are 3 cm in diameter. Find the temperature at r = 0.5 cm after 75 seconds of exposure. Is the lumped capacitance an acceptable solution here? [Ans.: 329 K].

Option 1

Low Cost Option
Download this past answer in few clicks

9.82 USD

PURCHASE SOLUTION

Option 2

Custom new solution created by our subject matter experts

GET A QUOTE

rated 5 stars

Purchased 3 times

Completion Status 100%