STRUCTURAL AND THERM AL ANALYSIS OF ... and Thermal Analysis Pressure IJMET/index. 5. MATERIAL – ALUMINUM of Reinforced Nozzle-Cylindrical Shell Inters ection Under Internal and

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International Journal of Mechanical Engineering and Technology (IJMET)Volume 8, Issue 8, August 2017, pp.

Available online at http://www.iaeme.com/IJME

ISSN Print: 0976-6340 and ISSN Online: 0976

© IAEME Publication

STRUCTURAL AND THERM

REINFORCED NOZZLE

INTERSECTION UNDER I

AND NOZZLE RADIAL TH

K. Vijaya Krishna Varma and

Department of Mechanical Engineering

ABSTRACT

Pressure vessels are widely applied in many branches of industry such as chemical

and petroleum machine-building, nuclear and power engineering, gas, oil and oil

refining industries, aerospace techniques, etc. Nozzles or opening are ne

pressure vessels to satisfy certain requirements such as inlet or outlet connection,

manholes, vents & drains etc. Welded nozzles connecting a pressure vessel to piping

can be placed both on the cylindrical shell and the heads of the vessel.

the effect of material with respect to stress distribution and temperature distribution

analyzed using finite element analysis.

Keywords: Nozzle, Steel, Aluminum, Copper, Thermal & Static analysis.

Cite this Article: K. Vijaya Krishna Varma and V.S.V Sai Sumanth, Structural And

Thermal Analysis Of Reinforced Nozzle

Pressure And Nozzle Radial Thermal Expansion

Engineering and Technology

http://www.iaeme.com/IJME

1. INTRODUCTION

Geometrical parameters of nozzle connections may significantly vary even in one pressure

vessel. These nozzles cause geometric discontinuity of the vessel wall. So a stress

concentration is created around the opening. The junction may fail due to these hig

Hence a detailed analysis is required. One of the parts of overall structural analysis for nozzle

connections is the stress analysis of two intersecting shells. Due to different loadings applied

to these structures, a local stress state of nozz

concentration occurs in intersection region. Internal pressure is primary loading used in the

structure analysis for determination of main vessel

procedure to design the junction, but do not provide any methodology to calculate the

extended and magnitude of these high stresses. The available analytical solution WRC

limited to simple geometries.

IJMET/index.asp 249 [email protected]

International Journal of Mechanical Engineering and Technology (IJMET) 2017, pp. 249–255, Article ID: IJMET_08_08_029

http://www.iaeme.com/IJMET/issues.asp?JType=IJMET&VType=8&IType=8

6340 and ISSN Online: 0976-6359

Scopus Indexed

STRUCTURAL AND THERMAL ANALYSIS OF

REINFORCED NOZZLE-CYLINDRICAL SHELL

INTERSECTION UNDER INTERNAL PRESSURE

AND NOZZLE RADIAL THERMAL EXPANSION

K. Vijaya Krishna Varma and V.S.V Sai Sumanth

Department of Mechanical Engineering, Gitam University, Hyderabad, Telangana


building, nuclear and power engineering, gas, oil and oil

refining industries, aerospace techniques, etc. Nozzles or opening are ne



can be placed both on the cylindrical shell and the heads of the vessel.

with respect to stress distribution and temperature distribution

element analysis.

Nozzle, Steel, Aluminum, Copper, Thermal & Static analysis.

K. Vijaya Krishna Varma and V.S.V Sai Sumanth, Structural And

Thermal Analysis Of Reinforced Nozzle-Cylindrical Shell Intersection Under Internal

Pressure And Nozzle Radial Thermal Expansion, International Journal of Mechanical

Engineering and Technology 8(8), 2017, pp. 249–255.

aeme.com/IJMET/issues.asp?JType=IJMET&VType=8&IType=8



concentration is created around the opening. The junction may fail due to these hig



to these structures, a local stress state of nozzle connection characterized by high stress


structure analysis for determination of main vessel-nozzle connections. The codes suggest a

ction, but do not provide any methodology to calculate the

extended and magnitude of these high stresses. The available analytical solution WRC

[email protected]

T&VType=8&IType=8

AL ANALYSIS OF

CYLINDRICAL SHELL

NTERNAL PRESSURE

ERMAL EXPANSION

, Gitam University, Hyderabad, Telangana.


building, nuclear and power engineering, gas, oil and oil-

refining industries, aerospace techniques, etc. Nozzles or opening are necessary in the



can be placed both on the cylindrical shell and the heads of the vessel.In this thesis,

with respect to stress distribution and temperature distribution is

Nozzle, Steel, Aluminum, Copper, Thermal & Static analysis.

K. Vijaya Krishna Varma and V.S.V Sai Sumanth, Structural And

drical Shell Intersection Under Internal

International Journal of Mechanical

asp?JType=IJMET&VType=8&IType=8



concentration is created around the opening. The junction may fail due to these high stresses.



le connection characterized by high stress


nozzle connections. The codes suggest a

ction, but do not provide any methodology to calculate the

extended and magnitude of these high stresses. The available analytical solution WRC-107 is

K. Vijaya Krishna Varma and V.S.V Sai Sumant


2. PARAMETERS:

A. Design Data:

Design Code: ASME Section VIII Div.

2 Design Pressure: 0.23 MPa = 0.23 ×106 Pa = 2.3 N/m

Reference Temperature: 220 C

Material: structural steel

B. Geometry:

Vessel ID: 1150 mm S

Hell Thickness: 75 mm

Length of Vessel: 6200 mm

Pad ID: 280 mm Pad OD: 560 mm

Pad Thickness: 72 mm

Nozzle ID: 150 mm

Nozzle Thickness: 65 mm

Nozzle Height (total): 442.3 mm

Nozzle Head Dia: 400 mm ;

3. MODELING OF THE

MODELING PROCEDUR

4. STATIC ANALYSIS MATERIAL



Design Code: ASME Section VIII Div.

gn Pressure: 0.23 MPa = 0.23 ×106 Pa = 2.3 N/m2

Reference Temperature: 220 C

Length of Vessel: 6200 mm

Pad ID: 280 mm Pad OD: 560 mm

Nozzle Thickness: 65 mm

Nozzle Height (total): 442.3 mm

: 400 mm ;Nozzle Head Thickness: 45 mm

THE NOZZLE-CYLINDRICAL SHELL

MODELING PROCEDURE

Figure 1 3D Drafting

Figure 2 2D design

MATERIAL – STEEL

Figure 3 Inlet Static model

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CYLINDRICAL SHELL

Structural and Thermal Analysis

Pressure


5. MATERIAL – ALUMINUM

nd Thermal Analysis of Reinforced Nozzle-Cylindrical Shell Intersection Under Internal

Pressure and Nozzle Radial Thermal Expansion


Figure 4 Pressure Inlet

Figure 5 Temperature inlet

Figure 6 Strain

Figure 7 Stress

ALUMINUM ALLOY

Figure 8 Deformation

ection Under Internal

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6. MATERIAL – COPPER



Figure 9 Stress

Figure 10 Strain

COPPER

Figure 11 Deformation

Figure 12 Strain

Figure 13 Stress

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Structural and Thermal Analysis

Pressure


7. THERMAL ANALYSIS

8. MATERIAL – ALUMINUM ALLOY

nd Thermal Analysis of Reinforced Nozzle-Cylindrical Shell Intersection Under Internal



THERMAL ANALYSIS

Figure 14 Temperature Inlet

Figure 15 Convection

Figure 16 Heat flux

Figure 17 Convection

ALUMINUM ALLOY

Figure 18 Heat flux

ection Under Internal

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9. MATERIAL – COPPER

10. RESULTS TABLE

Total deformation(mm)

Steel

Aluminum alloy

Copper

Steel

Aluminum alloy

copper

11. CONCLUSION

The Static and Thermal analysis is done the pressure vessel under internal pressures and

thermal expansion to determine the stresses, deformations, temperature distribution

respectively using different materials Steel, Aluminum alloy and Copper.



Figure 19 Temperature

COPPER

Figure 20 Heat flux

Figure 21 Thermal analysis

Table 1 Static Analysis

Total deformation(mm) Strain

0.01073 1.2661e-5

0.032255 3.5385e-5

0.021396 2.2759e-5

Table 2 THERMAL ANALYSIS

TEMPERATURE (K) HEAT FLUX (W/

523.18

523.16

523.16

analysis is done the pressure vessel under internal pressures and


respectively using different materials Steel, Aluminum alloy and Copper.

[email protected]

Stress(MPa)

2.4499

2.4307

2.4222

HEAT FLUX (W/mm2)

0.11403

0.16273

0.20484

analysis is done the pressure vessel under internal pressures and


respectively using different materials Steel, Aluminum alloy and Copper.By observing the

Structural and Thermal Analysis of Reinforced Nozzle-Cylindrical Shell Intersection Under Internal


http://www.iaeme.com/IJMET/index.asp 255 [email protected]

static analysis results, the deformation and strain values are less for Steel when compared with

that of Aluminum alloy and Copper. By observing stress values, the obtained stress values are

less than their respective yield stress values for all materials. The stress value is less for

Copper when compared with that of Aluminum alloy and Steel. But the density of Aluminum

alloy is less than that of Copper and Steel.

So Aluminum alloy can be preferred. By observing the thermal analysis results, the heat

flux is more for Copper when compared with that of Aluminum alloy and Steel. When the

heat flux is more, heat transfer rate is more

REFERENCES

[1] Dekker, C.J. and Bos, H.J., “Nozzles-on external loads and internal pressure”,

International Journal of pressure vessel and piping 72 (1997) I-18.

[2] Kiran D. Parmar1, Kiran A. Patel2, Dinesh D Mevada3 Address for Correspondence 1, 3

M. E. Student, 2Asst. Prof., Mechanical Engineering Department L.D.R.P-institute of

Technology and Research and Technology, Gandhinagar, India.

[3] Fang, J., Tang, Q.H., and Sang Z.F., “A comparative study of usefulness for pad

reinforcement in cylindrical vessels under external load on nozzle”, International journal

of pressure vessels & piping 86 (2009) 273-279.

[4] AmranAyob, “Stress analysis of torispherical shell with radial nozzle”, Journal - The

Institution of Engineers, Malaysia (Vol. 67, No. 3, September 2000

[5] Skopinsky, V.N. and Smetankin, A.B., “Modelling and stress analysis of nozzle

connections in ellipsoidal heads of pressure vessels under external loading‟‟,Int. Journals

of Applied Mechanics and Engineering, 2006, vol.11, No.4, pp.965-979.

[6] Rakesh Jaiswal, Anupam Raj Jha, Anush Karki, Debayan Das, Pawan Jaiswal, Saurav

Rajgadia, Ankit Basnet and Rabindra Nath Barman. Structural and Thermal Analysis of

Disc Brake Using Solidworks and Ansys, International Journal of Mechanical Engineering

and Technology, 7(1), 2016, pp. 67-77.

[7] Diyyala Naga Moulika, Reshma Vasireddy and P. Polu Raju, Modelling and Analysis of

Reinforced Concrete Beam Under Flexure Using Ansys. International Journal of Civil

Engineering and Technology, 8(3), 2017, pp. 1103– 1111

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STRUCTURAL AND THERM AL ANALYSIS OF ... and Thermal Analysis Pressure IJMET/index. 5. MATERIAL – ALUMINUM of Reinforced Nozzle-Cylindrical Shell Inters ection Under Internal and