CTC Design Calculations - engineering-eye

1 CTC My Address My City Design Calculations 2015 02 19 Revision : C:\..\data\ (2015 01 28) Job Tag : Description : Job Name : Drawing No : CTC My Address My City Design Calculations 2015 02 19 Revision : C:\..\data\ (2015 01 28) AutoPIPE Vessel (Microprotol) procal 2 prodia2 Bentley Systems, Inc. Table of Contents Update this field to get the table of contents. CTC My Address My City Design Calculations 2015 02 19 Revision : C:\..\data\ (2015 01 28) AutoPIPE Vessel (Microprotol) procal 3 prodia2 Bentley Systems, Inc. Codes, Guidelines and Standards Implemented.

2 Pressure vessel Design code: ASME VIII 2013 Local load Design method: WRC 107 (1979 03) Standard of flange ratings: ASME 2009 Standard for pipes: ASME 2004 2004 Material standard(s) and update(s): ASME II 2013 SA516GR60 Plate ASME II 2013 SA106 GRB Seamless pipe ASME II 2013 SA105 Forging Units: SI g = m/s2 [ Weight (N) = Mass (kg) g ] CTC My Address My City Design Calculations 2015 02 19 Revision : C:\..\data\ (2015 01 28) AutoPIPE Vessel (Microprotol) procal 4 prodia2 Bentley Systems, Inc. Design Conditions. Compartment 1 / / Internal pressure : 1 MPa / / Required MAWP : / / Design Temperature : 200 C / / Height of liquid : 500 mm / / Operating fluid spec.

3 Gravity : 1 / / Corrosion : 3 mm / / External pressure : MPa / / External temperature : 150 C / / Test Pressure : / / Test fluid spec. gravity : 1 / / Insulation Thickness : 100 mm / / Weight/density of insulation : 35 kg/m3 / / Radiography : Spot / / Weld Type : Type 1 / / CTC My Address My City Design Calculations 2015 02 19 Revision : C:\..\data\ (2015 01 28) AutoPIPE Vessel (Microprotol) procal 5 prodia2 Bentley Systems, Inc. Allowable stresses and safety factors ASME II part D S Allowable tensile stress. Sa allowable tensile stress under normal conditions. ST Minimum value of tensile strength. SY Minimum value of yield strength %. SY Minimum value of yield strength 1 %.

4 SRavg Average stress to cause rupture in 100,000 hours at Design temperature. Above room temperature, the value used is the lower of the room and at temperature values. Compartment 1 Allowable tensile stress S Materials Normal Conditions Exceptional and test conditions Creep Excluding bolting Carbon steel MIN{ (SY / ) , (ST / ) } SY SRavg / Austenitic stainless steel MIN{ (SY / ) , (ST / ) } SY SRavg / Copper ? SY SRavg / Aluminium ? SY SRavg / Nickel ? SY SRavg / Titanium ? SY SRavg / Bolting Carbon steel MIN{ (SY / 4) , (ST / 5) } SY / 2 SRavg / Austenitic stainless steel MIN{ (SY / 4) , (ST / 5) } ST / 3 SRavg / Cast materials S Welded pipe S CTC My Address My City Design Calculations 2015 02 19 Revision : C:\.

5 \data\ (2015 01 28) AutoPIPE Vessel (Microprotol) procal 6 prodia2 Bentley Systems, Inc. Hydraulic Test Pressure ASME UG 99 (b) : Pt = MAWP ( Sa / S )min MAWP = maximum allowable pressure P = Design Pressure Sa = allowable stress at room temperature, normal operating conditions S = allowable stress under normal operating conditions For each component P (MPa) Sa (MPa) S (MPa) t (mm) c (mm) Pt (MPa) Elliptical Head (01) 1 118 118 10 3 Shell (02) 1 118 118 10 3 Shell (03) 1 118 118 10 3 Shell (04) 1 118 118 10 3 Elliptical Head (05) 1 118 118 10 3 Nozzle M1 Neck 1 118 118 3 Pad 118 118 10 Flange 138 138 Bolting / / / Nozzle M2 Neck 1 118 118 3 Pad 118 118 10 Flange 138 138 Bolting / / / Compartment 1 / / MAWP 1 MPa / / Test Pressure at the Top.

6 MPa / / CTC My Address My City Design Calculations 2015 02 19 Revision : C:\..\data\ (2015 01 28) AutoPIPE Vessel (Microprotol) procal 7 prodia2 Bentley Systems, Inc. For vertical vessels with a test in horizontal position : Pt = Pt + Pt Pt = additional hydrostatic pressure corresponding to the height of the vertical compartment. Compartment 1 / / Design Pressure P : 1 MPa / / Test Pressure at the Top : MPa / / Hydrostatic pressure Pt : / / / CTC My Address My City Design Calculations 2015 02 19 Revision : C:\..\data\ (2015 01 28) AutoPIPE Vessel (Microprotol) procal 8 prodia2 Bentley Systems, Inc. Hydrostatic Pressure Type of components Operating Test Specific Gravity Horizontal Vertical Specific Gravity liquid level hydrostatic height Hydrostatic pressure liquid level hydrostatic height Hydrostatic pressure liquid level hydrostatic height Hydrostatic pressure (mm) (mm) (MPa) (mm) (mm) (MPa) (mm) (mm) (MPa) Shell(s) 01 1 1 1, 1, 02 1 1 1, 1, 03 1 1 1, 1, 04 1 1 1, 1, 05 1 1 1, 1, Opening(s) 1 M1 1 / 1 / / 2 M2 1 / 1 / / CTC My Address My City Design Calculations 2015 02 19 Revision : C:\.

7 \data\ (2015 01 28) AutoPIPE Vessel (Microprotol) procal 9 prodia2 Bentley Systems, Inc. Element(s) of geometry under internal pressure Elliptical head ( ) under internal pressure. ASME VIII 2013 tn = nominal thickness E = Weld joint efficiency So= Allowable stress T = Temperature Sy = Yield Strength ET = modulus of elasticity t = minimum required thickness Sa = allowable stress at room temperature P = internal pressure ST = tensile strength at room temperature D = inside diameter of straight flange = circular stress R = inside radius of straight flange Pa = Max. allowable pressure L = Inside radius Table UG 37 Ph = Hydrostatic pressure r = Inside radius Table 1 Ca = corrosion + tolerance Lsf = Straight flange = 50 mm Tol% = tolerance for pipes tmin = (t+Ca)/Tol% shall be tn ts = (tn Tol%) Ca shall be t SA516GR60 Plate Schedule : / NPS : / tn = mm ST = 414 MPa Tol% = / PWHT : No Radiography : Spot Seamless D/2h = 2 Cor.

8 = 3 mm Tol. = 0 mm UG 16(b) = mm P (MPa) Ph (MPa) T ( C) So (MPa) Sy (MPa) ET (MPa) Sa (MPa) Operation N Horizontal test X 200 20 118 189 221 192,000 202,350 118 r (mm) L (mm) Do (mm) D (mm) R (mm) Ro (mm) h (mm) Operation N Horizontal test X 1, 1, 1, 1, 1, 1, Appendix 1,4 (c) K = 1/6 [2+(D/2h)2] t = PDK/(2SE ) = P [DK+ ts] / (2E ts) Pa = 2S E ts / [DK+ ts] t = PDoK/[2SE+2P(K )] = P [DoK 2ts(K )] / (2E ts) Pa = 2S E ts / [DoK 2ts(K )] S (MPa) E K ts (mm) (MPa) Pa (MPa) t (mm) tmin (mm) Operation N Horizontal test X 118 1 1 1 1 Appendix 1,4 (f) If ts/L < r/D : C1 = r/D > : C1 = + r/D.

9 C2 = r/D > : C2 = < : c = a/[cos( )] : c = a a = r b = L r Se = C1ET(ts/r) Re = c+r = arc cos(a/b), rad = (Lts) Pe =()[] rRRCtSeese Py =()[] rRRCtSeesy Pe/Py : Pck = < Pe/Py : Pck = + Pe/Py > : Pck = shall be P ts/L C1 C2 a (mm) b (mm) c (mm) Re (mm) Operation N Horizontal test X / / / / / / / / / / / / Se (MPa) (rad) (rad) Pe (MPa) Py (MPa) Pck (MPa) Pck (MPa) Operation N Horizontal test X / / / / / / / / / / / / / / Straight flange UG 27 (c) t = PR/(SE ) = (PR / ts + ) / E Pa = S E ts / (R+ ts) Appendix 1 1 (a)(1) t = PRo/(SE+ ) = (PRo / ts ) / E Pa = S E ts / (Ro ts) S (MPa) E ts (mm) (MPa) Pa (MPa) t (mm) tmin (mm) Operation N Horizontal test X 118 1 1 2 MAWP (200 C, Corroded) = MPa MAWP (20 C, new) = MPa Table UG 79 1 : Extreme fiber elongation ratio = 75 tn / Rf ( 1 Rf / Ro ) = % ( Rf = mm.)

10 Ro = + ) t Lsf D h R CTC My Address My City Design Calculations 2015 02 19 Revision : C:\..\data\ (2015 01 28) AutoPIPE Vessel (Microprotol) procal 10 prodia2 Bentley Systems, Inc. Cylindrical shell under internal pressure. ASME VIII 2013 t = minimum required thickness tn = nominal thickness E = Weld joint efficiency P = internal pressure S = Allowable stress T = Temperature R = Internal Radius Ca = corrosion + tolerance = circular stress Ro = outside radius Tol% = tolerance for pipes Pa = maximum allowable pressure tn,min = (t+Ca)/Tol% shall be tn tu = (tn Tol%) Ca shall be t Ph = Hydrostatic pressure UG 27 (c) t = P(R+Ca)/(SE ) = (P(R+Ca) / tu + ) / E Pa = S E tu / ((R+Ca)+ tu) Appendix 1 1.