Author Topic: Heat sink ?  (Read 1872 times)

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Offline Mikey N.C.

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Heat sink ?
« on: March 04, 2017, 04:52:07 pm »
 :) was wondering if everyone in cold climates.  Use the same overwintering techniques. As far as using tar paper,  was wondering if ya could use aluminum as some type of a heat sink ? ?
Around the hive as a conductor

Offline LazyBkpr

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Re: Heat sink ?
« Reply #1 on: March 04, 2017, 05:05:13 pm »
The tar paper is basically for thermal gain, its not for insulation. It gives the bees a few more days during cold temps that they can break cluster and move up, or to the side etc to get to honey reserves. About anything you painted black and wrapped the hive with would work.
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Offline Mikey N.C.

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Re: Heat sink ?
« Reply #2 on: March 04, 2017, 05:07:43 pm »
A conductor of radiant heat ?

Offline robo

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Re: Heat sink ?
« Reply #3 on: March 04, 2017, 05:12:30 pm »
Heat can be transferred in three methods - Conduction, Convection and Radiation.

A heat sink works on the conduction method and unlike an electrical diode,  it works in both directions.  So although you can get heat from the sun when it warms the heat sink, when the sun is not out,  it would suck heat out of the hive.

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Offline Mikey N.C.

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Re: Heat sink ?
« Reply #4 on: March 04, 2017, 05:45:17 pm »
Thanks ,  wasn't thinking of cool down period. What happens if  you use sealed 1/2 or 1/4 inch air gap that is sealed shut .on outside.? 

Offline Mikey N.C.

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Re: Heat sink ?
« Reply #5 on: March 04, 2017, 05:51:31 pm »
Like the Mickey Mouse boots gov.  Issued back in the day ?

Offline robo

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Re: Heat sink ?
« Reply #6 on: March 04, 2017, 07:24:58 pm »
Yes,  air gaps work well with insulation, not with conductors.   With certain insulation in certain configurations,  you can double the R-value of the material with an air gap.   

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