Heat Sink Question
Heat Sink Question
(OP)
It's been a few years since I took thermo and heat transfer, need some help with a question:
I am using a 29 J/s heater strip to heat a heat sink (181.4 g of aluminum) to 60 degrees C at room temperature. I am wondering how to tell if this heater strip has enough power to overcome the effects of lowering the air temperature to -25 degrees C. Any help would be appreciated. Thanks.
I am using a 29 J/s heater strip to heat a heat sink (181.4 g of aluminum) to 60 degrees C at room temperature. I am wondering how to tell if this heater strip has enough power to overcome the effects of lowering the air temperature to -25 degrees C. Any help would be appreciated. Thanks.





RE: Heat Sink Question
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RE: Heat Sink Question
RE: Heat Sink Question
RE: Heat Sink Question
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Need help writing a question or understanding a reply? forum1529: Translation Assistance for Engineers
RE: Heat Sink Question
RE: Heat Sink Question
RE: Heat Sink Question
RE: Heat Sink Question
area*htc*deltaT
Existing DeltaT = 60 - "room temperature" . So about 40
New DeltaT = 60 - (-25) = 85
85/40 = a bit bigger than 2
Over some reasonably long period of time, if your heater is currently on more than half of the time then you don't have enough power.
RE: Heat Sink Question