F1technical.net

It has been said that in 2014 cooling will be a significant factor in cars' competitiveness and reliability.
The regulations are strict (banning graphene and so on), but maybe we can discuss points such as

transmittance enhancement with surface treatment
3dprinted radiators (Boeing issued a patent in 2011 abot this)
and the ever-present Meredith effect (even if there are already several threads about that...)

3d printer radiators.. interesting. As in metal SLS? I'm curious what the advantage would be there, and whether surface finish would have any effect on cooling.

http://www.reactionengines.co.uk/heatex_rel.html

Intriguing development here ...parts of it maybe applicable to race car cooling ,any takers?

shelly wrote:It has been said that in 2014 cooling will be a significant factor in cars' competitiveness and reliability.
...... maybe we can discuss points such as
..... the ever-present Meredith effect (even if there are already several threads about that...)

being related to dynamic pressure ie the square of the vehicle speed .....
the 'Meredith effect' could surely not be significantly present at F1 speeds ?

@JT: yes I was thinking about sls - maybe youcan have patterns on the surface that are not machinable conventionally.

@tommycookers: trying to achieve thrust from rrad is a question that pops out here very often, I hope that in this thread we can clarify what's doable and what's not.

What if they made radiator from synthetic diamond? Make a ceramic mold using 3 d printing technology, and then make a radiator from synthetic diamond?

http://arxiv.org/ftp/arxiv/papers/0909/0909.1185.pdf

Thermal conductivity would be 3-4 times greater compared to aluminium. It would weigh a little bit more, but it would be smaller and more efficient?

Maybe some coatings of this sort?

Is this even possible? What do you guys think?

Downforce wrote:What if they made radiator from synthetic diamond? Make a ceramic mold using 3 d printing technology, and then make a radiator from synthetic diamond?

http://arxiv.org/ftp/arxiv/papers/0909/0909.1185.pdf

Thermal conductivity would be 3-4 times greater compared to aluminium. It would weigh a little bit more, but it would be smaller and more efficient?

Maybe some coatings of this sort?

Is this even possible? What do you guys think?

Synthetic diamond is a great heat conductor. But I don't think the technology is there yet to grow an entire radiator.

I believe everything is possible just mater of time and money.

http://www.e6.com/wps/wcm/connect/e6_co ... rtnerships

Working in close partnership with one of the world’s greatest names in hi-fi speakers, Bowers & Wilkins, our Element Six Technologies Division perfected making synthetic diamond into complex geometric shapes, including domes of the required thickness for unsurpassed sound reproduction.

I know that this is not so complex as a radiator, but maybe...

IIRC fia rules ban nanocarbon, graphene and so on (what a pity!) But on f1.com I have not been able to find the specific rule in chapter 7

I don't think Meredith is coming to visit F1 any time soon.
A sidepod with an opening of 900cm2, at 200Km/h and taking Rho=1.2Kg/m3 takes in 6Kg of air each second. If you discard compressibility (and the associated changes in temperature), the maximum Delta T to be had from the radiator is from 293K to 373K. With ideal gases, DeltaT=DeltaV (volume) which will also equal the DeltaV (air speed). That would accelerate those 6 Kg of air (per pod) to 255Km/h. this is being generous and assuming a large Delta T for the air and completely unimpeded flow.
I have a hard time getting more than 1HP from those numbers, and in reality I suppose that the air slows down, overall, in the sidepods, even including the effect of the exhaust pipes, or we would see the sidepod exits blowing things.
I think we can concentrate on how to best reject heat with minimum drag rather than playing with drag recovery.

Agree that some clarification are needed on meredith , internal flow and so on


I have found an interesting video showing a "custom formula1 car 3d printed heat exchanger".

http://www.youtube.com/watch?v=zApmGFDA6ow

Any use in synthetic diamond coating for radiatora?

nacho wrote:Any use in synthetic diamond coating for radiatora?

Unlikely. It would be impractically expensive to coat the surface area of an entire radiator, and you're still limited by the conductivity of the underlying aluminum. I don't even know if you can coat aluminum.

Somehing like this: http://en.wikipedia.org/wiki/Dymalloy