Red Bull RB7 Renault

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shelly
shelly
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Re: Red Bull RB7 Renault

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I think as marekk said that the aim for insulation is not only protecting bodworek, but also keep as much energy as possible in the exhaust flow
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Caito
Caito
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Re: Red Bull RB7 Renault

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Cheap Thermos don't have a vaccuum gap. And they work quite fine. I know this because of my study of electronics and heat management. It's very incredible to see how still air can be a good insulation.


As with double windows. You don't have a vacuum in between, still you get great thermal insulation.
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marekk
marekk
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Re: Red Bull RB7 Renault

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Caito wrote:Cheap Thermos don't have a vaccuum gap. And they work quite fine. I know this because of my study of electronics and heat management. It's very incredible to see how still air can be a good insulation.


As with double windows. You don't have a vacuum in between, still you get great thermal insulation.
Indeed, air is quite good insulator, but real thermos are made with vacuum (almost perfect insulator if you make it with mirroring walls to prevent radiation loses).

But i doubt they use air (maybe when keeping some fresh cooling air flow, but not easy in this case). Probably just common good insulators from allowed materials list.

It's quite amazing, how many effort goes into exhaust this year. This solution doesn't look cheap by any means.

marcush.
marcush.
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Joined: 09 Mar 2004, 16:55

Re: Red Bull RB7 Renault

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Exhaust header thermal encapsulation was on all turbocharged indy cars .I think a little air flow through the air gap between header and shield and a good thermal barrier like the one they use for the diffusser could potentially do the trick.
extremely expensive? no .
btw the BMW exhaust is a casting -different story.
But indeed Porsche have a double wall tubular exhaust header for their current production Turbo Boxer engine.

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Holm86
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Joined: 10 Feb 2010, 03:37
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Re: Red Bull RB7 Renault

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Formula None wrote:Chill out, smik. It seems pretty obvious that its just a GCC/Pyrosic heat shield. Same stuff the McLaren octopus was made of (supposedly) before deemed illegal.

I also think it is a Pyrosic heatshield.

And when was the octopus deemed illegal?

Formula None
Formula None
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Joined: 17 Nov 2010, 05:23

Re: Red Bull RB7 Renault

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RB7/MP4-26 overlay, aligned at rear wheel:

Image

mx_tifoso
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Re: Red Bull RB7 Renault

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Flexible wing posts moved to the respective topic

Likewise for the ones about KERS.
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mx_tifoso
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Re: Red Bull RB7 Renault

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Malaysia Sunday

Image

Image
Interesting duct and spokes in the drum.

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Onch
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Re: Red Bull RB7 Renault

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Interesting to see on the steering wheel that they seem to have different mappings for KERS.
I would have thought the KERS to only require a On/Off switch, but here there are a number of intermediate positions...
I guess the 'S' sticker stands for 'Start', the other one I am not sure whether it is a 'Q' ('Qualy'?) or an 'O' ('Overtake'?)

Nice to see that the clutch has its own knob too, probably to take wear and track grip factors into account at launch and when leaving after pit stops.

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horse
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Joined: 23 Oct 2009, 17:53
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Re: Red Bull RB7 Renault

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I guess there are some advantages to controlling it's rate of discharge/recharge. For instance, if it discharged more gently off the line, you might be able to apply it earlier in the start phase. Also, if you can let it recharge more gently it might cause less of an impact on brake balance.

To be honest, I was not aware that they were allowed this level of control with it.
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Raptor22
Raptor22
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Joined: 07 Apr 2009, 22:48

Re: Red Bull RB7 Renault

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beelsebob wrote:
Caito wrote:[img]http://www.altrex.com.ar/sp/images/prod ... -1.jpg[img]

This (sorry, couldn't find the english word for it) don't get a hot when I pour nearly boiling water for mate(argentinian tea-like infusion, http://en.wikipedia.org/wiki/Mate_(beverage))

If their is still air between the pipe and the carbon fibre it could be a very good insulation. Still air is "bad" conducting.


Properties of air:
http://www.engineeringtoolbox.com/air-p ... d_156.html

I have a few thermos at home that uses an air gap is an insulator.
thats why they don't collapse when you take them on an airplane...


Could have something to do with posted solution..
It's called a thermos, and it uses a vacuum to create the insulate property, not an air gap. I'm not sure I see where on the car you think they're using it.

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raymondu999
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Joined: 04 Feb 2010, 07:31

Re: Red Bull RB7 Renault

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Sorry... anyone know what the fail button is for? :?
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Raptor22
Raptor22
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Joined: 07 Apr 2009, 22:48

Re: Red Bull RB7 Renault

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Onch wrote:Interesting to see on the steering wheel that they seem to have different mappings for KERS.
I would have thought the KERS to only require a On/Off switch, but here there are a number of intermediate positions...
I guess the 'S' sticker stands for 'Start', the other one I am not sure whether it is a 'Q' ('Qualy'?) or an 'O' ('Overtake'?)

Nice to see that the clutch has its own knob too, probably to take wear and track grip factors into account at launch and when leaving after pit stops.

KERS is an lectric motor that can deliver muchmor torque than a gas fueled engine.
So it's "throttleability" needs to be governed for various situations.
At the start you want the motor to deliver a "Softstart" ramping the torque up in relation to acceleration and the available grip. Now I wonder if there is a soft of traction control built into the slipring system that drives the battery re-gen....

i70q7m7ghw
i70q7m7ghw
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Re: Red Bull RB7 Renault

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Do Red Bull develop their own KERS? There were a few interviews with Newey over the weekend and he was quite revealing, indicating Red Bull are really struggling to develop KERS. Surely it would make sense for them to buy KERS from a manufacturer? Renault perhaps?

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horse
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Joined: 23 Oct 2009, 17:53
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Re: Red Bull RB7 Renault

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Diesel wrote:Do Red Bull develop their own KERS?
He was interviewed by the BBC and said they were producing their own variant of the Renault KERS. He didn't say it outright but, in my opinion, I think he showed some regret over this due to the struggle to gain reliability.
We were keen to do our own version of the Renault KERS to suit our own package and some of the problems we've had have been through that choice and some of them have been a result of the underlying system.
Red Bull's Adrian Newey would rather not use Kers (UK only)
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