Heat Removal
Heat Removal
(OP)
Can anyone help me??
I am trying to evaluate the size of hole (diameter and length) that I need to remove one Watt of heat from an aluminium component. This requirement is for general cooling of a component with heat loads contained within as aluminium alloy has good thermal conductivity. If I evaluate what I require for one watt of heat then I can extrapolate this for higher power loads and add a length of hole (via cross drilling etc, like a manifold) to the component. Does the flow rate of coolant matter or is it the surface area that is the driver?? What assumptions should I make to simplify this analysis?? The cooling medium is water.
I would appreciate any help in this.
Best Regards
JL
I am trying to evaluate the size of hole (diameter and length) that I need to remove one Watt of heat from an aluminium component. This requirement is for general cooling of a component with heat loads contained within as aluminium alloy has good thermal conductivity. If I evaluate what I require for one watt of heat then I can extrapolate this for higher power loads and add a length of hole (via cross drilling etc, like a manifold) to the component. Does the flow rate of coolant matter or is it the surface area that is the driver?? What assumptions should I make to simplify this analysis?? The cooling medium is water.
I would appreciate any help in this.
Best Regards
JL





RE: Heat Removal
The simplest approach is to look in a heat transfer book for the general case of fluid flowing in a pipe. This will help you calculate h and see how flow rate can affect it. I use Fundamentals of Heat and Mass Transer by Incropera & De Witt.
Good luck.
Tony