RE: Fwd: density / bulk density

From: <Conner>
Date: Mon Nov 07 2005 - 10:30:00 EST

I'm not sure where there are formal definition of these terms as they might differentially relate to pipelines, but perhaps it could be explained that any different, individual components of any say layered (e.g. coated and/or lined) or composite pipelines and contents all have their own some different densities or weights per unit volume in a specific medium (e.g. if weighed in air).

Based on the aggregate (say unit) weight of the pipeline and contents as a whole however, divided its overall (say unit) volume determined by its outside diameter, a different magnitude overall or "bulk density" could perhaps be determined for the pipeline and contents.

Randy Conner
Research Department - Technical Division American Cast Iron Pipe Company
1501 31st Avenue North, Birmingham, AL 35207 P. O. Box 2727, Birmingham, AL 35202
ph 205-325-7946
fax 205-325-8095

-----Original Message-----
From: <a href="/group/PipingDesign/post?postID=g2UsOKRG0NOEJSWXBlgQYjB1bCPV93SWIPUes9GjLRApvBWahu6Vm-AAa6na_gY98JV0rcsgtNU8q9H5JbalVKSBxJys">PipingDesign@yahoogroups.com</a>
[mailto:PipingDesign@yahoogroups.com]On Behalf Of subir majumder
Sent: Monday, November 07, 2005 6:30 AM
To: <a href="/group/PipingDesign/post?postID=g2UsOKRG0NOEJSWXBlgQYjB1bCPV93SWIPUes9GjLRApvBWahu6Vm-AAa6na_gY98JV0rcsgtNU8q9H5JbalVKSBxJys">PipingDesign@yahoogroups.com</a> Subject: [PipingDesign] Fwd: density / bulk density

Dear,

We are doing the river crossing calculation for 16" pipeline(onshore)for Natural Gas.

I would like to know if there is any difference between Density and Bulk density of Concrete coated pipe.

Currently i am using Concrete Density as 2500 Kg/m^3

and LP coating Density as .92 g/cc.

As in the calculation both density and bulk density is required.Please clarify the above.

And if possible please mention the value in your mail.

Thanks and Regards

Subir

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