Anyone know how good of a material it is when it dissapates heat at an R value of 1.6?

 

http://hyperphysics.phy-astr.gsu.edu...les/thrcn.html

http://www.processassociates.com/pro...ert/cf_tcn.htm

 

Thanks but thats not exactly what I'm looking for. I'm not looking for thermal conductivity, I'm looking for thermal dissapation.

 

same thing, just take the difference between the material and the medium to which your transfering heat.

 

I dont get it. I was never too great at physics. I would like to know how well a material with an R value of 1.6 refract heat as compared to other materails. I am looking for a good thermal wrap that can withstand header heat.

 

thermo-tec heat wrap or dei heat wrap

 

Something like this....
Insulation type R-value per inch of thickness
Fiber glass blanket or batt 2.9 to 3.8 (use 3.2)
High performance fiber glass blanket or batt 3.7 to 4.3 (use 3.8)
Loose-fill fiber glass 2.3 to 2.7 (use 2.5)
Loose-fill rock wool 2.7 to 3.0 (use 2.8)
Loose-fill cellulose 3.4 to 3.7 (use 3.5)
Perlite or vermiculite 2.4 to 3.7 (use 2.7)
Expanded polystyrene board 3.6 to 4 (use 3.8)
Extruded polystyrene board 4.5 to 5 (use 4.8)
Polyisocyanurate board, unfaced 5.6 to 6.3 (use 5.8)
Polyisocyanurate board, foil-faced 7
Spray polyurethane foam 5.6 to 6.3 (use 5.9)

 

Design Engineering wrap is like $30 for the same amount I bought for $3.


[Modified by Wont be beat, 11:06 AM 6/19/2002]

 

if you want to go super crazy, find a way of making a non-brittle ceramic blanket

 

I was thinking more along the lines of painting my header with either ceramic paint or heat safe paint black, and then using some sort of wrap that will withstand the heat.

 

http://www.jm.com/insulation/product..._Microlite.pdf
Edit: However, this stuff can only withstand 350 F which is not nearly enough.


[Modified by Wont be beat, 11:17 AM 6/19/2002]

 

why not just get the damned thing coated and then wrap it?

http://www.hpcoatings.com

 

http://www.zippertubing.com/hightemp.htm

 

Because I cant have down-time.

 

$60 for a 100 ft roll.

 

It's just a conversion factor, to whatever you want, insulating R value can be in inch/cm/etc... but you have to say which...
Ahh, thermal wrap, you are looking for insulation, i'm using dei header wrap... with dei silicone coating, both from summitracing for cheap...

As for the ideal header wrap... aerogel

http://science.nasa.gov/aerogel/
http://eande.lbl.gov/ECS/Aerogels/satcond.htm

Unbelievable stuff and all that is needed to insulate entire exhaust weighs less than a penny! Plus it's not as far off an idea as you think, it is already being made as insulation for ski jackets and other winter clothes.

Otherwise, more expensive than fiberglass headerwrap... http://www.3m.com/market/industrial/...barriers.jhtml

Your choice.

 

Thanks.

 

thats what Im using on my shizzle

 

Call me cheap, but I still think thats kinda on the rich side for me.

 

Where do you get that stuff for that price?

 

summit racing equipment

 

the problem with the heat wrap if the pipe has not been coated is it traps moisture between the surfaces and your piping will rust at an accelerated rate

 

Designengineering.com also.

 

Cool, I live right by Summit Racing. I may get some this weekend.

Misa , what do you coat that stuff with to prevent the moisture problem?

 

i didnt coat, but on my next set of whatever the hell i decide to do if i decide im not sick of all this crap

would be have it sent off to be coated http://www.hpcoatings.com