OK Cool Collar Fans.

[Targa Dude]

Well, I finally got around to completing the first stage of my new
"Cool Fan" to complement my "Cool Collar". My plans are to have an electronic thermal switch to activate the fan at 200 Deg. F
so with out futher to do.. here is the proto type.

Let me know your thoughts..

Jorge (Targa Dude)

[widebody911]

Looks great! - Oh wait, that's just my reflection off of the screen.

[Moses]

I was gonna hook up my E-ram to just blow air past my cool collar.

At what temperature does motor oil freeze?

[Targa Dude]

This is the last attempt tonight... Wow!!!
it worked holy *****!

Jorge (Targa Dude)

[Zendalar]

Sorry to say, but if that propellor in there is a normal 12V "computer"fan its not gonna do any good.

Remove the right side air tube from engine compartment and attach it to that thing to blow air through cool collar fins..More air goes through.

[Targa Dude]

Hello Zandelar,

Your are pretty close... it's not a computer fan what it is a
12V, 120 CFM High End Fan that is used in Telecom Equipment.
If you would like to discuss Specs drop me a email.


Jorge (Targa Dude)

[JMPRO]

Targa Dude, great looking part, their may be a job for you at the COOL COLLAR international headquarters in R&D.
Jerry

[Targa Dude]

Well... I guess it's back to the good ole bench..

Thanks for all your support.. couldn't have done it with out you guys.

Jorge ( Targa Dude)

[island911]

Jorge,

"Cool Collar fans" har-har, good title.
Is the idea to pull the air past the CC and exhast it outside of the engine compartment? If so, that ought to work great.
Not to mention, you can easly check exit temps for effectivness. You may even find the increased surface area of the cc doesn't offset the gap loss and extra transmission length.

Aside; on the Fan: Having designed cooling systems (for Telecom Equipment) myself, I would strongly suggest you check out Delta Electronics FFB series fans. Those little bad-boys have a stator row, making them significantly out perform any others, of the same size. . . .and can be sourced with alarming, standard voltages. . .yadda yadda.

Just looked closer at the picture. . .is that a delta?

[Targa Dude]

Hey!! it's good to see their is someone who understands the simplicity of a good design. Your exactly correct on both your comments. From reading past threads it seemed that this idea has been discussed to death, with most concerns being blowing more hot hot air into the engine fan... so I said to myself why not suck the hot air out and there you have it.... the "Cool FAN"
and to answer your question about the Fan yes it is the Delta
FFB Series.. Wow! amazing.. who would of thought being in the Telecom industry would apply to P-Cars in this regard....


Jorge (Targa Dude)

[Steve W]

I would try what Zendalar suggested. Tee off the right side air tube and port it into your Cool Collar shroud. Go with perhaps 1 to 1.5" tubing since you don't need much airflow to get the heat going. Can't get simpler or more reliable than that.

[island911]

So it is a Delta. Cool - I'm impressed on your selection! (That's no cumputr prepalur fan)
Nice touch with the thermal switch to activate the fan at 200°F. If you were to, say, simply Tee off the right side air tube and port, then it would be cooling the oil on warm-up. Now *that* wouldn't be a very good engineering solution. (I hate that sluggish feel when the oil is cold.)
Very good work!
. . .There I go again,just always praising anything to do with the coolcollar. .

[911pcars]

As Island911 alluded, does it pull air past the CC?

It looks as if your fabricated round aluminum "can" fits over the cool collar. The fan, downstream of the CC, draws air past it, then exhausts hot air outside of the engine compartment through the attached black flex hose. Have I got that right? If so, this is what I suggested in a past thread when you first introduced the idea. Hey, I want royalties! About 89% will do.

It might be a more compact package in the engine compartment if the fan and exhaust tube were perpendicular to the CC axis. However, that takes a different shape canister - perhaps a can over the CC, then two openings on opposite sides; one for air intake, the other for exhaust air and fan motor. You also may wish to include a manual ON-OFF switch to override the thermal switch when not needed or necessary.

Just thinking out loud along with the rest of us.

Best wishes on your project,
Sherwood Lee
http://members.rennlist.org/911pcars
www.seinesystems.com

[Targa Dude]

Hello Sherwood,

Although you may have mentioned in that pass thread about directing air outside it was already in my design from it's inception.
if you ever get a chance to observe any type of telecom equiptment you will notice the air flow always vents out hot air to the atmosphere. it's natural convection.
anyway as far as Royalties, we are both going to be broke for if you read that thread my plan was to offer the drawings and specifications to anyone that wants them.

Jorge (Targa Dude)

PS. As far as the direction in which the air flows across the CC
you definately want the air to flow para to the fins. Less resistance means better heat dissipation.

[Zendalar]

Actually no, some cooling fins and for example watercooling stuff are designed to have turbulence. Turbulence helps the cooling process.

If we start to ponder...well, the cool collar should be black. Anodized. This radiates the heat out best.

But there is dark!,
Hey, its the heat sprectrum, the infrared spectrum

On the other hand...anodizing reduces the coefficiency...hmm.

There ain't no heat spreading silicone paste underneath the cool collar. (Used in electronics)

Even if you had a radiator fan as big as in a 5.7liter chevy, it would not do very little good,if any, if the cool collar fins are so small.

Island911, I know deltas are good, i use them daily in my profession, but they still blow the air too slow to have any effect.

Squirrel cage blowers blow better if you really are trying to get some effect with 12V DC fans.

If that cool collar would be hammered "flat" with fins still in good condition, it would not cool down even a modern computer processor. You really think it cools down the oil circulating a 120-300hp 911 engine?

IF i was to make a cool collar, it would have bigger fins, more of them (bigger surface area), yes, and it would be watercooled with external radiator and the radiator would have a fan. Radiator would not be in the engine compartment.

[Targa Dude]

Zan,

It's pretty impressive how someone can go from computers
and audio to being a Thermal Engineer and lets not forget your clever mechanical enginuity. I'm not sure how you got on the subject of water cooling since this being a air cooled engine and
the design of a water cooled radiator not only would be expensive
and not to mention very heavy and probably out of your mechanical capability.
Hammering down the fins on the cool collar now that is clever
and what might the Aspect RATIO be ? I would very much like to see your calculations.
Thermal grease?? Dude this is a car.. not a cpu.

WHAT THE HECK IS THIS?? I have to say the stove Temp Gauge
thing is what I would really like in my car. let me know when you finish your design. I can only imagine what the person that eventually will acquire your car is going to post on this board.

First off I doubt very much that the CPU's your seeing in your field of expertise have incorporated into them High end Components
that are used in telecom equipment certified by NEBS, BELCORE, or in your case ETSI.

The purpose of this post was for constructive opinions not lame ideas. I never intended to market this design or any of my other designs. fortunate for me I have the knowledge, experience and my shop where I can play with my HARDINGE LATHE, MY BRIDGEPORT MILL and the rest of my toys. cause thats what I like to do. I take your ideas and make them a reality. well maybe not yours, The picture I posted is a PROTOTYPE FIRST ARTICLE that I will test with Temp probes, thermal couples, and air flow sensing equipment that is at my disposal I will use this data to make improvements. this device in it self can not and will not cool the oil in a Porsche engine nor did I make that claim But along with all the other cooling components that are part of a air cooled porsche motor I have no doubt will have a positive effect.


Jorge ( TARGA DUDE)

[Zendalar]

Nice to see that you have read some my postings.

Ok, your design is nice but its not gonna work with that fan. Processors or a car engine, heat source is a heat source. Different wattage maybe but still a heat source.

The reason I said that hammer that collar straight like letter "l" and stick it to puny processor and it would not cool a tiny processor.

Why don't you calculate cool collars coefficiency if you are so genius.

You do the math because I am so dumb.

The stove/steak temperature gauge is cheap, it has LCD display, its like those you see in some peoples cars which show the interior and exterior temperature, this looks exactly the same just has much wider temperature range. Besides its cheap, under 20$.


PS: My car has nothing extra "things"

[JMPRO]

Targa Dude, how are you going to test your adaption when it is finished. I would be interested in the procedure you will use .
Jerry 911 SC "cooled to the max"

[Targa Dude]

Hi JMPRO,

Well sinse I'm not planning on marketing these things my testing prodcedure will be pretty basic using simple instrumentation.
As for the procedure, again very basic I will monitor temps at
selected locations with and with out cool collar with and again with and with out the Cool Fan installed . I will be recording oil temps. ambient air, surface temps and inlet and outlet air temps and Velocity. thats about it. nothing to scientific.

My Test Equipment consists of the following,

OMEGA HH-70TF temperature Meter
Omega Type K Thermocouples
Dwyer 471 Thermal Anameter
Dwyer 475-1AV Air Velocity Meter
Fluke 80PK K TYPE Emersable Temp probe

Jorge (Targa Dude)

[Zendalar]

What was the result?