Beggs & Brill Method
Beggs & Brill Method
(OP)
Hi all
Could some one enlighten me on whether Beggs&Brills method is the best way to calculate Pressure drop in Steam Lines ?
regards
Could some one enlighten me on whether Beggs&Brills method is the best way to calculate Pressure drop in Steam Lines ?
regards





RE: Beggs & Brill Method
you shouldn't use that model for steam,
read some good book for the range of application of that model .
RE: Beggs & Brill Method
RE: Beggs & Brill Method
http://flowoffluids.com/publications/crane-tp-410.aspx
It has an excellent simplified equation for steam flow that works well for all practical applications.
The Crane manual is a "must have" for those who routinely calculate fluid flow.
G.Hartmann
BS ChE NCSU
RE: Beggs & Brill Method
http://flowoffluids.com/
RE: Beggs & Brill Method
http://flowoffluids.com/
RE: Beggs & Brill Method
Crane
RE: Beggs & Brill Method
also you may investigate about the alternative methods available in your software,
Beggs & Brill is specific for HC + water multi phase flow,
I have a different tool (PRODE PROPERTIES which I use from Excel)
there is a macro =PIPE() for solving pipe segments with heat exchange,
for multi phase flow it allows to define models such as Beggs & Brill,
however it switches automatically for single phase fluids such as water,
possibly there is something equivalent in your software.
RE: Beggs & Brill Method
RE: Beggs & Brill Method
which version of Excel are you running ?
Anyway if you have problems to run the software with Excel 32 or 64 you may ask for technical assistance, see
'http://www.prode.com/en/contact.htm'
I think the PIPE() macro is not available in free versions
RE: Beggs & Brill Method
RE: Beggs & Brill Method
in Excel select File and then Help, below the Office logo there is the version,
ff you load 64 bit version of Prode from Excel 32 you get errors.
RE: Beggs & Brill Method
RE: Beggs & Brill Method
RE: Beggs & Brill Method
anyway, to use Prode (or a different simulator) as first step you must define the stream (list of components, fractions, thermo models etc.) then in nozzle.xls you define Tin, Pin, Pout and mass flow,
the program calculates the required area and estimates t out,
models are applicable to both single (including dense phase) and two phase flows.
Different variants are possible (i.e. design, rating etc.)
For PSV modeling I prefer HEM which gives conservative values (in two phase flow),
the other models (HNE , HNE-DS , NHNE) are applicable to specific cases
and if you are not sure imho better to use HEM,
note that Prode includes a rigorous HEM not the simplified Omega method.
RE: Beggs & Brill Method