Hello all,
I have a homework problem due tomorrow and I just can't figure it out. Its asking to find the heat transfer coefficient of a steel ball (W//m^2-C) with this given info:
density=8085 kg/m^3
k=15.1 W/m-C (thermal conductivity)
C=0.480 kJ/kg-C (specific heat)
alpha=3.91E-6 m^2/s (???)
Initial Temperature: 900C
Final Temperature: 600C
Air Temperature: 30C
Ball Diameter: 1.2cm
I've been going over the chapters on transient heat analysis but I don't really know where to start, given all the formulas that involve h involve other variables (such as rate of heat transfer) that I don't have. I was also thinking that finding the thermal resistance would help, since its the inverse of that.
I have a homework problem due tomorrow and I just can't figure it out. Its asking to find the heat transfer coefficient of a steel ball (W//m^2-C) with this given info:
density=8085 kg/m^3
k=15.1 W/m-C (thermal conductivity)
C=0.480 kJ/kg-C (specific heat)
alpha=3.91E-6 m^2/s (???)
Initial Temperature: 900C
Final Temperature: 600C
Air Temperature: 30C
Ball Diameter: 1.2cm
I've been going over the chapters on transient heat analysis but I don't really know where to start, given all the formulas that involve h involve other variables (such as rate of heat transfer) that I don't have. I was also thinking that finding the thermal resistance would help, since its the inverse of that.