Finite Element Analyses of Stresses Developed in Oil Separator Composite Tank Used in Screw Type Compressor Systems

Abstract

Pressure vessels are geometrically cylindrical, spherical or conical work equipment used for the storage and transportation of pressurized fluid. In the case of design and/or manufacturing deficiency, or for the case of improper applications of such vessels due to working conditions, the damages that may occur can cause serious harm to the environment and employees. The aim of this study is to estimate the performance of a typical oil separator pressure vessel used in screw compressor systems, exposed to high pressure and temperature, using finite element method. Here, the aim is to estimate performance of this tank after modifications in design and to compare the results with that of pressure vessel designed using conventional materials. The inner liner of the separator tank is metal material and the other layers are wrapped with three different composite materials, including carbon fiber/epoxy, glass fiber/epoxy and kevlar fiber/epoxy, at different angles, and then were exposed to high pressures in the environment of finite element simulation software. As a result of the study, stress and deformation values were examined and the most suitable material and orientation angle for the composite pressure vessel were decided.

Keywords

• Separator tank
• Carbon fiber/epoxy
• Glass fiber/epoxy
• Kevlar fiber/epoxy
• Stress
• Total deformation.

References

1. S. Bozkurt, “2014/29/AB standartlarına uygun içten basınca maruz kompozit basınçlı kap tasarımı ve analizi,” Yüksek Lisans Tezi, Bingöl Üniversitesi, Fen Bilimleri Enstitüsü, Bingöl, 2018.
2. E. Yaylağan, “Determination of Composite Pressure Vessels Under Various Loadings,” Dokuz Eylül University Graduate School of Natural and Applied Sciences, İzmir, 2010.
3. A. Pehlivan, “Elyaf Sarma ile Üretilen Kompozit Yapıdaki Basınçlı Kapların Değişik Yüklemelerde Modellenmesi,” Yüksek Lisans Tezi, İstanbul Teknik Üniversitesi Bilişim Enstitüsü Hesaplamalı Bilim ve Mühendislik Anabilim Dalı, İstanbul, 2017.
4. M. Sinha and D. Pandit, “Design and Burst Pressures Analysis of CFRP Composite Pressure Vessel for Various Fiber Orientations Angles,” International Journal of Advances in Engineering Science and Technology, vol. 1(1), pp. 35-40, 2012.
5. Q. Zhang, Z.W. Wang, C.Y. Tang, D.P. Hu, P.Q. Liu, and L.Z. Xia, “Analytical solution of the thermo-mechanical stresses in a multilayered composite pressure vessel considering the influence of the closed ends,” International Journal of Pressure Vessels and Piping, vol. 98, pp. 102-110, 2012, doi: 10.1016/j.ijpvp.2012.07.009
6. İ. Sancaklı, “Basınçlı kap konstrüksiyonlarına etki eden parametrelerin incelenmesi ve tasarımı,” Yüksek Lisans Tezi, Yıldız Teknik Üniversitesi, Fen Bilimleri Enstitüsü, İstanbul, 2017.
7. F. Mestan, “Basınçlı kapların deneysel ve teorik olarak incelenmesi,” Yüksek Lisans Tezi, Hava Harp Okulu, Havacılık ve Uzay Teknolojileri Enstitüsü, İstanbul, 2010.
8. M. Usta, “Birbirinden farklı kalın cidarlı basınçlı kaplarda kaynaklı bölgelerin TS 17020 uygunluğunun araştırılması,” Yüksek Lisans Tezi, Namık Kemal Üniversitesi, Fen Bilimleri Enstitüsü, Tekirdağ, 2011.

9. F. Tjelta, “A comparison study of pressure vessel design using different standards,” Master Thesis, University of Stavanger, Faculty of Science and Technology, Stavanger, 2012.
10. S.K. Raparla and T. Seshaiah, “Design and analysis of multilayer high pressure vessels, International Journal of Engineering Research and Applications,” vol. 2(1), pp. 355-361, 2012.
11. M. Ahmed, R.U. Khan, S. Badshah, and S. Jan, “Finite element investigation of geometry effect on pressure vessel under combined structural and thermal loads,” International Journal of Engineering and Advanced Technology, vol. 4(2), pp. 118-124, 2014.
12. V.V. Wadkar, S.S. Malgave, D.D. Patil, H.S. Bhore, and P.P. Gavade, “Design and analysis of pressure vessel using ANSYS,” Journal of Mechanical Engineering and Technology, vol. 3(2), pp. 01-13, 2015.
13. D. Kolekar and S.S. Jewargi, “Stress analysis of pressure vessel with different type of end connections by FEA,” International Journal of Innovative Research in Science, vol. 04 (5), pp. 2769-2775, 2015.
14. S.M.A. Khan, “Stress distributions in a horizontal pressure vessel and the saddle supports,” International Journal of Pressure Vessels and Piping, vol. 87 (5), pp. 239-244, 2010, doi:10.1016/j.ijpvp.2010.03.005
15. V. Gezginci, “Design and analysis of oil seperator tank used in screw type compressor systems,” Master's Thesis, Adana Alparslan Türkeş Science and Technology University, Institute of Graduate School, Adana, 2022.