دورة منظومات تصريف النفط الخام وأسس أختيار المضخات 2023.pdf
دورة منظومات تصريف النفط الخام وأسس أختيار المضخات 2023.pdf
دورة منظومات تصريف النفط الخام وأسس أختيار المضخات 2023.pdf
45. P at (0 ) = 893.095 * 9.81 * ( 12 - 0 )
= 105,135 Pa
P at (4) = 893.095 * 9.81 * (12- 4 )
= 70,090 Pa
P at (8) = 893.095 * 9.81 * (12- 8 )
= 35,045 Pa
1 bar = 100,000 Pa
96. َٔذنطببًٛاملطيًكػطؾكاٚ بٛاحملط ايطُو
١ٝايتايت٫املعاد
:
t =
𝑷𝒊∗𝑫𝒐
𝟐𝟎( 𝑭∗𝑬∗𝑺𝒚 )
t : pressure design wall thickness as calculated in (mm)
Pi : internal design gage pressure ( bar ) .
Do : outside diameter of pipe ( mm ) .
F : design factor based on nominal wall thickness not
1
-
402.3.5
Table A
from
)
0.72
(=
greaterthan
E : weld joint factor as defined in Table 403.2.1-1
Sy : specified minimum yield strength of the pipe (MPa)
S = applicable allowable stress value (MPa) for new
pipe determined by the equation ( S = F*E*Sy )
165. hd = hst + hatm + hfd + hvap + hv + had
١ٝايتاي١ق٬ايعَٔذنطبٚ
:
hd : discharge head .
hst : static ( geographic ) head .
hatm : atmospheric head .
hfd : discharge friction head .
hvap : liquid vapor head .
hv : velocity head .
had : any additional head .