oven surface temperature
oven surface temperature
(OP)
My heat transfer is rusty at best. We are designing an oven that has 600 F internal cavity temperature. The oven door is constructed of stainless steel with 2 glass panes. The glass panes are seperated apart by 1/2" air gap. We want to solve for the surface temperature of the outer glass pane, assuming ambient room temperature of 75 F. The glass panes are 1/4" thick.
We want to know the temp for both a vented and a sealed air gap between the glass panes.
I'm making some assumptions on the heat transfer coefficients of the air, but my answer is about 390 F on a sealed door. When I increase the h value for a vented door, the temperature rises!
Can somebody enlighten me on how to calculate this and verify my result? Maybe do a quick hand calculation and post me the results?
Thank you.
We want to know the temp for both a vented and a sealed air gap between the glass panes.
I'm making some assumptions on the heat transfer coefficients of the air, but my answer is about 390 F on a sealed door. When I increase the h value for a vented door, the temperature rises!
Can somebody enlighten me on how to calculate this and verify my result? Maybe do a quick hand calculation and post me the results?
Thank you.





RE: oven surface temperature
((600+75)/2)+75 = 337.5 F
Unfortunately, I only do heat transfer calcs occasionally, and it takes me a long time to work things out (Dust off the reference books, look everything up, ect). Therefore, I'll leave it up to somebody else to give you more input on the correct direction to go from here.
-- MechEng2005
RE: oven surface temperature
Exactly not the way you do it. I don't think so.
RE: oven surface temperature
TTFN
FAQ731-376: Eng-Tips.com Forum Policies