subsea pipe in pipe insulation

[heyjaehey]

Hi, I am to design pipe in pipe for transporting crude oil and I am confused to what equations & theories to use. The main criteria is to find the insulation that would bring the product to the destination at the temperature of 90F and above (starting 250F) over 55km.

Any help would be appreciated.

 

[unclesyd]

The best insulation for your purpose is the Aerogels from people like Aspen or Cabot.

http://www.aerogel.com/markets/industrial.html

http://w1.cabot-corp.com/controller.jsp?entry=product&N=23+4294967252+1000