Recent content by davejc

It may be some rounding errors, we have close enough answers. Where I think we are not correct is that there is no account for the fact that the Furnace Wall is radiating heat as well. The heat capacity of the Nitrogen is not exclusively pulling heat from the Steel, it is also pulling from the...

Yes, the part as well as the Furnace Wall will be radiating heat. The Heating Elements are not giving off any energy, but the insulation is holding some heat in it. Trying to wrap my head around the Excel Setup, and I probably did this wrong. Colum 1 = Time Column 2 = Current Temp Column 3 =...

It is inside a heat treating furnace. So, I will have heat radiating off the Load and off the Furnace Wall. I know I will never get the load to ambient temperature. The next step of the process requires that the parts be below 500ºF. I am looking over Newtons Law of Cooling. Calculus was...

I am working on a new application and am trying to figure out how I can calculate the cooling rate of Steel. I have a load of Steel Tubes. 1200lb total mass. Tubes have some variance on size depending on what is being run on a given day, but nominally, we are looking at 1" OD x .1875" Wall x...