Cooling motors.

[SouthOzSV27]

Has anybody thought of using compressed CO2 (soda stream) bulbs as a way of cooling motors during races?
They are light weight and it would be easy to channel the CO2 around a motor for cooling.
Whenever i used them they ice up very easily.
Last summer in Australia we had 2 weeks straight of weather over 42 degrees Celsius everything got hot.
Might sound crazy but im interested in what others have to say.

[kck741]

Yes I have thought of that but could not figure out how to purge the system.


I have also thought of cooling the motor through refrigeration

[SweetAccord]

The refrigeration was something I always thought about. Remember those small 12v CPU coolers? They are neat, but cause condensation though, and electrical devices enemy.

[domwilson]

Interesting and a cool idea pardon the pun. They are called Peltier coolers and they are available all over ebay for less than 10 bucks. I think you may have hit on something.

[Ub Hauled]

It seems like a great idea but I am concerned that the side that heats up will melt glass or worst... set it on fire!
As they mention on the auction, one side cools and the other side heats...

[kck741]

Okay Here it is,Im a HVAC-R tech.(heating venting air conditioning and refigeration)If I can come up with a way to move refrigerant (r-134a most likly) through small copper tubing to and evporator coil by the motor man that thing would be like putting a burger off the grill in the freezer


Didnt mean to jack your idea or thread


Kris

[SweetAccord]

If you use refrigerant r-134a, isn't it illegal to vent refrigerant to atmosphere? I'm thinking in such a small application with high pressure being used. If something were to be made it would have to be a sealed self contained system. Great idea if it can be made reliable without any damaging effects to our environment.

[kck741]

No im going to vent any refrigerant what so ever I can get my EPA Certification taking along with a 25,000 dollar fine,I was talking about a sealed system.the freon flows through the evporator coil and a small fan will blow air across the evp coil making the air cold hitting the motor much like A/C works in your house.Sorry for the confusion.

[egneg]

I think that a small refrigerated chiller system would be more efficient. They have them for gamer pc's. Just substitute a heat exchanger and recirc pump for the evaporator.

[ED66677]

you'd better use a Peltier pad!

[SweetAccord]

"If I can come up with a way to move refrigerant (r-134a most likly) through small copper tubing"

That idea kinda scared me not of you Kris, but of others who may try to copy this idea and mess it up as they may not be as capable as you are with R-134a.

[domwilson]

I would think a peltier cooler would be smaller, less weight and use less energy. Yes, a peltier does have a hot side as well as a cold side. But you could put a fan on the hot side to keep inside temps reasonable. At the very least, you could use it to cool the ESC.

[kck741]

Well said,

I would not want anyone to try this with out the know how,I have been doing some research and they make a refrigeration system for laptop computers useing one of the blends from R-134a,I think its r-37 not sure but Im going to try and find the link,I runs off of 12 vdc

[rockwerks]

"If I can come up with a way to move refrigerant (r-134a most likly) through small copper tubing"

That idea kinda scared me not of you Kris, but of others who may try to copy this idea and mess it up as they may not be as capable as you are with R-134a.

R-134 is non flammable and has no real problems except its not good for the ozone

[kck741]

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