Two-Phase PSV Calculations

Dear Anyone!

Could anyone indicate for me know as:

What kid of the pressure to serparation C4,C5 from C4+ mixture?
(equartion etc...)

thank you!

my email: [email]duongbg.re@gmail.com[/email]

Dear Hswang,

Hope you would be doing good. Your hard work is much appreciated.

The posted link has expired, can you please upload the paper again?

Thank you,

Take care and Stay blessed.

Omar Bin Zia


[QUOTE=hswang2;188846]Dear Sir

I just spend lots of time to find one of paper you asked from the egpet fourm, and
hope you can kindly send me the Excel spreadsheet for the two phase flow relief valve calcuation.

I just start to do my process engineer job in Bechtel China, and no much experiece on this PSV topic.

Our company already has PSV software, but I would like to get much more deep understanding about PSV topic.
So, please help me in this PSV relief excel spreadsheet, and I only keep in my presonal research not spread out to others.

Please refer to the follow address to download (cause this file is too large so I can't email to you.)
[url]http://ifile.it/a5lwhd6/Easily[/url] Size Relief Devices and Piping for Two Phase Flow by Joseph C. Leung.pdf

Thanks.

Happy Hoiday[/QUOTE]

eliealtawil
Thanks a lot

be careful when sizing a PSV for two phase flow,
there are several methods for two-phase PSV calculations (HEM, HNE, NHE etc.)
some (as HEM) give conservative results, others not,
differences may be large (100% and more in some cases) so it is wise to compare different methods,
you may read this thread for additional information

'http://www.egpet.net/vb/threads/27092-Excel-library-for-process-calc-s-including-distillation'

the library (there is a free copy available at prode.com for non-commercial applications) allows to calculate the required area and compare the results from different methods as HEM and HNE,
see the attached image

Have anybody spreadsheet for the sizing of PSV outlet piping.

Please share me on [email]chemkuldeep@gmail.com[/email]

Thanks in the advance.

Have anybody spreadsheet for the sizing of PSV outlet piping.

Please share me on [email]chemkuldeep@gmail.com[/email]

Thanks in the advance.