R
RobS
- Jan 1, 1970
- 0
Hi James, sorry for the late reply I don't hang out on the group these days.
I just did a ball park calculation using heat capacity of steel roughly
500J/kg/K ie. 500* 1500 * (3.5/2.2) = 1.2MJ; the 0.1 error is because I
did it the calc in my head.
I (knowingly) didn't include the latent heat of fusion for the ballpark
calculation. In retrospect I probably should have because it is
significant. I think for iron/steel Lf = 250kJ/Kg which comes out to
250k*(3.5/2/2) = 0.4MJ. That should be added onto the 1.2MJ giving a
total of 1.6MJ (45% higher than my rough estimate).
I just did a ball park calculation using heat capacity of steel roughly
500J/kg/K ie. 500* 1500 * (3.5/2.2) = 1.2MJ; the 0.1 error is because I
did it the calc in my head.
I (knowingly) didn't include the latent heat of fusion for the ballpark
calculation. In retrospect I probably should have because it is
significant. I think for iron/steel Lf = 250kJ/Kg which comes out to
250k*(3.5/2/2) = 0.4MJ. That should be added onto the 1.2MJ giving a
total of 1.6MJ (45% higher than my rough estimate).
