api 510 pc 30apr05 ynb case study 2 thickness calculations
TRANSCRIPT
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8/17/2019 API 510 PC 30Apr05 YNB Case Study 2 Thickness Calculations
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Professional Training and ConsultationAPI 510 Preparatory
CASE STUDY 2THIC!ESS CA"CU"ATI#!S
DATA:
Design pressure = 26 kg/cm2 = 370 psig
Design temperature = 300°C = 572°F
Inside diameter = 1200 mm = 47.25 in
.!.C. = 515 gr 70
C"rr/#rr". a$$"%ance = 3.0 mm
&$$"%a'$e (tress = 1)400 psi
*+pe ", supp"rts = (add$e supp"rts
-engt ** = 315 in 000 mm
adi"grap+ = Fu$$ / (p"t
"int e,,icienc+ # = 1 Fu$$# = 0.5 (p"t
REQUIRED:
1 Ca$cu$ate reuired ticknesses ,"r se$$ and eads c"nsidering '"tcases ", radi"grap+.
2 Ca$cu$ate & ,"r se$$ ,"r '"t cases ", radi"grap+.
/8ar/%%%/apps/c"n8ersi"n/tmp/scratc97/31604)4.d"c
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8/17/2019 API 510 PC 30Apr05 YNB Case Study 2 Thickness Calculations
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_____________________________________________________________________________
Professional Training and ConsultationAPI 510 Preparatory
SOLUTION TO CASE STUDY 2
AA) Shell Thickness:
Design tickness =C
pSE
PR+
− 6.0
,"r #=1< td =.63.14364.113
3706.019400
603370=+=+
− x
x
sa+< 16.0 mm
,"r #=0.5< td = 71.16371.1333706.085.019400603370
=+=+
− x x
xsa+
1.0 mm
F"r & ca$cu$ati"n<a8ai$a'$e ;ett tk t = 16 3 = 13 mm ,"r #=1
t = 1 3 = 15 mm ,"r # = 0.5
& =t R
SEt
6.0+
F"r #=1< & =136.0603
13119400
x x x
+ = 412.) psig
F"r # = 0.5< & =156.0603
1585.019400
x
x x
+ = 404.2 psig
BB) Dished Head:
1. >emisperica$ ead
td = C P SE PR
+
− 2.02
F"r #=1< td = 33702.0194002
603370+
− x x
x= 5.76 ? 3 = .76. sa+ 10.0 mm
F"r # = 0.5< td = 33702.085.0194002
603370+
− x x x
x
= 6.7 ? 3 = ).7 mm
sa+ 10.0 mm
/8ar/%%%/apps/c"n8ersi"n/tmp/scratc97/31604)4.d"c
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8/17/2019 API 510 PC 30Apr05 YNB Case Study 2 Thickness Calculations
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_____________________________________________________________________________
Professional Training and ConsultationAPI 510 Preparatory
2) 2:1 Elli!ical Head
td = P SE
PD
2.02 − ? C
F"r #=1< td = 352.1133702.0194002
1206370+=+
− x x
x= 14.52. sa+ 16.0 mm
F"r # = 0.5< td = 33702.085.0194002
1206370+
−− x x
x = 13.56 ? 3 = 16.56 mm
sa+ 1.0 mm
") T#$ishe$ical Head
t = + C L= Dia = 1203 mm.
= mm x
x x39.23339.203
3701.019400
1203370885.0=+=+
− say, 24.0 mm (for E=1)
= mm x x x x
00.27300.2433701.085.019400
1203370885.0=+=+
− say, 28 mm (for
E=0.85)
COMPARISON OF THICKNESS (mm)
ItemShe !oris"h. #ea$ 2%1 Ei". #ea$
#emis"h.#ea$
E=1.0 E=0.85 E=1.0 E=0.85 E=1.0 E=0.85 E=1.0 E=0.85
&i'.e*ire$!hi'ess
11.-4 13.1 20.3/ 24.00 11.52 13.5- 5.- -.8
Desi'!hi'ess
14.-3 1-.1 23.3/ 2.00 14.52 1-.5- 8.- /.8
omi'a!hi'ess
1-.00 18.00 24.00 28.00 1-.00 18.00 10.0 10.0
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0.885 LSE 0.1