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Anonymous Poster

Insulation Thickness

07/21/2010 6:47 AM

One circular pipe having operating temp.529c and surface temp. 450c pipe outer dia is 660mm. What is thickness of insulation?
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Kaisan
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Join Date: Nov 2009
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#1

Re: insulation thickness

07/21/2010 7:57 AM

Is this really 6" - as the A said to the B.

Don't you think you should give us some clues, like the material properties of the insulation, desired temperature of the insulation ...............????????

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PWSlack
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#2

Re: Insulation Thickness

07/21/2010 9:00 AM

If the insulation material were one of those new-fangled aerogels, a few mm would do.

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MJCronin
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#3

Re: Insulation Thickness

07/21/2010 6:38 PM

According to my recollection, with an outer surface temperature of 450 C, I believe that you would need about 4 to 5 inches of calcium Silicate.

Its OK for use to ~540 C

Look at www.engineeringtoolbox.com

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Anonymous Poster
#4

Re: Insulation Thickness

07/21/2010 11:00 PM

Homework!
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cingold
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Join Date: Nov 2007
Posts: 519
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#5
In reply to #4

Re: Insulation Thickness

07/22/2010 7:46 AM

I agree. Who pulls the operating temp and finds the surface temp of a line without knowing the calculation for optimum insulation thickness?
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Anonymous Poster
#6

Re: Insulation Thickness

07/26/2010 4:55 AM

I sure Rock wool or Calcium Silicate , thickness 2 1/2" is ok for this temp & Pipe OD
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