Coke drum overhead vapor line

This topic contains 1 reply, has 2 voices, and was last updated by Anonymous 14 years, 9 months ago.

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June 18, 2008 at 2:31 pm #3575

Merwin Merwin
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Hi,

Does anyone kwon what is the tipycal range or value of roughness factor for coke drum overhead vapor line before quench injection and after quench injection.

Thanks
June 20, 2008 at 9:36 am #6769

Anonymous

We are using standard roughness factor 0.00015 ft for clean commercial steel pipe, but We do not know the roughness factor when there is coke laydown inside the line.

If you have some value please advise.

Regards.
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