Cooling motors.

[rockwerks]

I think what he is talking about is the average Joe guy handling this refrigerant with an axcidental release.I think he was worried about release not flamablility.Release is a big deal now days

not near as bad as poofing a motor........lol

[kck741]

Id rather poof 10 NUE motors

[SweetAccord]

Yes, you got it right kck741, my concern is the average "Joe" using something that is not for the average "Joe".

[FastVee]

Why not HFC134A ? (or is it the same as r-134a ?) -computer duster gas, it is really cold and widely used on airsoft/air con applications. -i use it on many things here(Finland) -or is it illegal in the states?

-and yes, you can freese your fingers off with it, so do it at your own risk.

[ED66677]

you could use any gaz, as long as it is compressed, when depressurized, its temperature goes very low, this is how gaz are liquified!

[SweetAccord]

I really think the natural elements, like water which is free and abundant, which the boat needs to run in is the most ideal resource to tap to cool the system. Yes it drags but there is no weight issue or any recharging or maintenance or something else to go wrong.

Adding cans of gas or other items add weight unless they are really small and light weight and can out cool water then that would be a great consideration.

Only the Peltier pad comes to mind or something like it in respect what is mentioned above maybe? As for the gas, any gas, it would have to be refilled as would the R-134. The cans and the system itself would weight a good size to be effective or allow quite a few runs with no recharge-so they would have to be small.

Would be interesting to see someone make a system of this nature.

[Eodman]

Back in the day I ran a Baldwin Motion SS Chevelle at Englishtown NJ, we took a coffee can(3 pounder) and ran a coil of fuel line inside of it and packed it with ice prior to a trip thru the lights it made difference when you tripped the lights!

Only when it came to legit runs we couldn't use it or it tossed us out of the stock class!

Wonder if something like that could be adapted to water cooling and if so what would the extra weight do to your speed!

In most climate zones you don't need them but in those warmer climes perhaps a cool can with 1 or 2 solid ice cubes might help!

[ED66677]

compressed air!... does not weigth anything and generate cold temp when depresurized!

[SweetAccord]

The compressed air would have to be in some type of metal container, So there is weight of that container. Maybe if it was aluminum that would even it out, but it's still added weight.

[Ctonez]

water pickups can be made to have less drag. J-tubes for example take water from the roostertail. Little drag if any at all.
I'm not sure what performance gains, if any, you'd see with a different cooling system keeping the motor cooler...my Neu has water cooling and rarely sees 90 degrees after a race heat. My SV motors rarely see anything hotter than 115.

That brings up a question though...does a hot brushless motor run faster than a cool brushless motor? other way around? is there a difference?

[Viking]

Heat--cold

I have an Idea, feel free to shoot holes in it.
Recreational Vehicles, RVs use an "ammonia" system in the refrigerator, the ammonia is heated (coil around the motor would do that) absorbing heat,and the ammonia evaporates and expands, when it condenses it gets cold to cool the ESC for instance.
There are no moving parts, no compressor, it is a sealed system.
Just a thought.
Viking

[ED66677]

The compressed air would have to be in some type of metal container, So there is weight of that container. Maybe if it was aluminum that would even it out, but it's still added weight

nope no metal needed just a pressure resistant container, a reinforced bow might do it and would be the flotation device!

I have an Idea, feel free to shoot holes in it.
Recreational Vehicles, RVs use an "ammonia" system in the refrigerator, the ammonia is heated (coil around the motor would do that) absorbing heat,and the ammonia evaporates and expands, when it condenses it gets cold to cool the ESC for instance.
There are no moving parts, no compressor, it is a sealed system

that's a good one but as far as I remember it does not work if the circuit is not static, as our boat a pretty mistreated, the "ammonia" would not be efficient!