nozzle repad design spreadsheets

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2 Pressure Vessel Engineering Ltd.3 Finite Element Analysis ASME Code Calculations4 Canadian Vessel Registration Vessel Modeling and Drafting5

6 Page 1 of 27 Nozzle Description

8 Shell Inputs:9 SA-240 304 Material 10 20,00011 1.00

12 24.00013 0.20414 0.01515 0.015

16 Nozzle Inputs:17 SA-312 304 Material 18 20,00019 1.00

20 4.00021 0.16022 1.00023 1.00024 0.01525 12.5%26 50.0

27 Reinforcement:28 SA-240 304 Material 29 20,00030 0.25031 6.00032 0.20033 0.20034 0.20035 0.250

36 Variables:37 Nwall*UTP 0.16*0.1 = 0.02038 Do/2 - (Nwall-nca) + UT 4/2 - (0.16-0.015) + 0.02 = 1.87539 Nwall-2*nca 0.16-2*0.015 = 0.13040 MIN(Ip-sca,2.5*nt,2.5*ti) MIN(1-0.015,2.5*0.204,2.5*0.13) = 0.32541 Nwall-nca 0.16-0.015 = 0.14542 Do-2*tn 4-2*0.145 = 3.710

43

44

45 (50*1.875)/(20000*1 - 0.6*50)+0.015 = 0.02046 TreqN <= Nwall 0.02 <= 0.16 = Acceptable

47 Minimum thickness per UG-45 [in] = Acceptable 0.078

Nozzle and Repad Design Tool ver E4.01

Sv [psi] - allowable stress E1 - efficiency of shell at nozzle

Ds [in] - inside diameter of shell nt [in] - nominal shell wall thickness Treq [in] - required shell wall thickness sca [in] - shell corrosion allowance

Sn [psi] - allowable stress E - nozzle efficiency

Do [in] - outside diameter of nozzle Nwall [in] - nominal wall thickness of nozzle Lp [in] - exterior projection of nozzle Ip [in] - interior projection of nozzle nca [in] - nozzle corrosion allowance UTP [%] - undertolerance allowance Pn [psi] - interior pressure

Sp [psi] - allowable stress of repad te [in] - repad thickness Dp [in] - outside diameter Leg41 [in] - fillet size Leg42 [in] - fillet size Leg43 [in] - fillet size LegG [in] - depth of groove

UT [in] = Rn [in] =

ti [in] = h [in] =

tn [in] = d [in] =

Required Thickness: UG-27(c)(1,2)

TreqN [in] = (Pn*Rn)/(Sn*E - 0.6*Pn)+nca ~~ required minimum thickness

CheckTreqN =

1

2

3 1*3.71*0.015*1+2*0.145*0.015*1*(1-1) = 0.0564 max(d, 2*(nt+tn)) * (E1*nt-1*Treq)-2*tn*(E1*nt-1*Treq)*(1-fr1)5 MAX(3.71, 2*(0.204+0.145)) * (1*0.204-1*0.015)-2*0.145*(1*0.204-1*0.015)*(1-1) = 0.7016 min((tn-trnR)*fr2*min(5*nt,2*Lp),(tn-trnR)*(Min(2.5*tn+te,2*Lp)*fr2*2))7 MIN((0.145-0.005)*1*MIN(5*0.204,2*1),(0.145-0.005)*(MIN(2.5*0.145+0.25,2*1)*1*2)) = 0.1438 Min(5*nt*ti*fr2,5*ti*ti*fr2,2*h*ti*fr2)9 MIN(5*0.204*0.13*1,5*0.13*0.13*1,2*0.325*0.13*1) = 0.08510 (Dp-d-2*tn)*te*fr4 (6-3.71-2*0.145)*0.25*1 = 0.50011 Leg41^2*fr3 0.2^2*1 = 0.04012 Leg42^2*fr4 0.2^2*1 = 0.04013 (Leg43-nca)^2*fr2 (0.2-0.015)^2*1 = 0.03414

15 0.701+0.143+0.085+0.5+0.04+0.04+0.034 = 1.54316 1.543 >= 0.056 = Acceptable

17 The UG-16(b) minimum thickness requirement has not been taken into consideration here.

18 The required weld size is not checked on this sheet

19 This sheet cannot be used to check for allowable exterior pressure loads.

20 This sheet is for educational use only - use at your own risk.

21 Pressure Vessel Engineering Ltd.22 120 Randall Drive, Suite B23 Waterloo, Ontario, Canada, N2V 1C624

Area Replacement: Ar [in^2] = 1*d*Treq*1+2*tn*Treq*1*(1-fr1) ~~ required Area

A1 [in^2] =

A2 [in^2] =

A3 [in^2] =

A5 [in^2] = A41 [in^2] = A42 [in^2] = A43 [in^2] =

Aa [in^2] = A1+A2+A3+A5+A41+A42+A43 ~~ actual area

CheckA = Aa >= Ar ~~ check area replacement

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