Orifice sizing
Orifice sizing
(OP)
I want to find out orifice dia, upstream side pr. 3.5 kg/cm2, line size 3 inch and i want 1 kg/cm2 pr. On downstream i dont know how much steam flow is there.
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS Come Join Us!Are you an
Engineering professional? Join Eng-Tips Forums!
*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail. Posting GuidelinesJobs |
|
RE: Orifice sizing
RE: Orifice sizing
Good luck,
Latexman
RE: Orifice sizing
http://www.eng-tips.com/faqs.cfm?fid=1196
Best regards
Morten
RE: Orifice sizing
RE: Orifice sizing
The pressure, density and/or temp in the first of the equations at the referenced site are misleading. Pressure and temp and /or density should be in terms of stagnation conditions. Use of static p, T or density will lead to some error depending upon the upstream Mach number.
I believe the original derivation of the equation was based on quasi steady flow from a large area reservoir thru a "much smaller area" orifice (negligible upstream velocity) such that upstream static and stagnation conditions are equivalent.
Regards
RE: Orifice sizing
Anyway - i dont make the FAQ - but hopfully Milton will see this and corret if nescesarry.
Best regards
Morten