Jump to content



Featured Articles

Check out the latest featured articles.

File Library

Check out the latest downloads available in the File Library.

New Article

Product Viscosity vs. Shear

Featured File

Vertical Tank Selection

New Blog Entry

Low Flow in Pipes- posted in Ankur's blog

0

Api 521 Noise Calculation


No replies to this topic
Share this topic:
| More

#1 nhcf

nhcf

    Brand New Member

  • Members
  • 1 posts

Posted 07 March 2019 - 11:47 AM

Section 5.8.10.3 provides calculations for estimating noise from a discharge pipe.  The equation uses "L", sound pressure level, which is taken from Figure 18, and based on a pressure ratio = absolute pressure upstream of relief valve/absolute pressure downstream.  The figure only shows ratios up to 10.  What is the "L" value for conditions where the PR is > 10.  For instance, 750 psi line venting to atmosphere, 764.7/14.7 is > 10.  Is the calculation no longer valid?

 

 






Similar Topics