Page 1 of 1
3. A copper sphere is immersed in an airflow where free stream temperature is 27 °C and the heat transfer coefficient be
Posted: Tue Jun 07, 2022 1:11 pm
by answerhappygod
- 3 A Copper Sphere Is Immersed In An Airflow Where Free Stream Temperature Is 27 C And The Heat Transfer Coefficient Be 1 (28.66 KiB) Viewed 23 times
3. A copper sphere is immersed in an airflow where free stream temperature is 27 °C and the heat transfer coefficient between sphere and stream is 35 W/m²K. Find the diameter of the copper sphere if sphere temperatures are measured to be 66 °C at initial condition and 55 °C at 70 seconds later. The density, specific heat and thermal conductivity values for copper can be taken as 8933 kg/m³, 389 J/kg and 398 W/mK respectively. Validate the lumped capacitance assumption.