<VV> Improving the heat conductivity of motor oil

[Frank DuVal]

We do have a Klystron system where the Diala oil is pumped through the 
system and a heat exchanger. Never say never! ggg

ABB oil filled substation transformers are rated for 55 °C rise. On a 
hot day (104 °F, 40 °C ), that is at 105 °C, above boiling point for water.

Some dry type transformers have ratings of 105 °C, so some operate above 
boiling water temperature.

Frank DuVal

On 2/2/2012 7:07 PM, jvhroberts at aol.com wrote:
>   Well, yeah, transformer oil is a coolant and a dielectric. There are no pumps or other moving parts in a transformer, and the temps don't get anywhere the boiling point of water, unless there's a fire!
>
> Not sure this is the way to go here. And in air cooled engines, the oil cooler is to protect the oil from excessive temperatures, not so much for cooling the engine. The flow isn't there, the heat capacity of the oil isn't there, etc.
>
> A fun mental exercise, but without a test, not sure how useful it would be in an engine.
>
>
>
> John Roberts
>
>
>
>
> -----Original Message-----
> From: Mark Durham<62vair at gmail.com>
> To: ScottyGrover<ScottyGrover at aol.com>; fastvair<fastvair at yahoogroups.com>
> Cc: virtualvairs<virtualvairs at corvair.org>
> Sent: Thu, Feb 2, 2012 5:11 pm
> Subject: Re:<VV>  Improving the heat conductivity of motor oil
>
>
> And see how fast it wears your cam or other parts. There is a big
> difference between a transformer where the oil is static versus our oil
> which also provides a pressurized boundary layer in the bearings and
> drip spray lube to cam lobes where high pressures in between the lobe
> and lifter exist. Not to mention the wiping/compression strokes the
> rings and cylinder walls experience! Mark Durham
>
> Sent from my Windows Phone
> From: ScottyGrover at aol.com
> Sent: 2/2/2012 10:44
> To: fastvair at yahoogroups.com
> Cc: virtualvairs at corvair.org
> Subject:<VV>  Improving the heat conductivity of motor oil
> _HBN  Boron Nitride Dry Lubrication Powders, 1lb test quantity now
> available._
> (http://sandblastingabrasives.com/hexagonal-boron-nitride-powder-order-page-781.html)
>
> Why don't you experiment with this and find out if it helps in  cooling?
>
> Scotty from Hollyweird
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