Ubaid, Moh. Azzam Nashrullah (2018) Analisis Aliran Fluida dan Tegangan pada Pipeline dengan Berbagai Variasi Tipe Expansion Loop. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Expansion loop pada pipa diperlukan agar defleksi yang terjadi dapat diserap sehingga pipa tidak mengalami pembengkokan. Namun dengan adanya perubahan aliran internal pipa akan menyebabkan terjadinya turbulensi fluida yang dapat mempengaruhi tegangan pada bagian pipa tersebut. Analisa tegangan dilakukan untuk mengetahui apakah tegangan yang terjadi pada variasi expansion loop tipe L, U, Z elbow 90° dan 45° dengan variasi pertambahan panjang lengan masih berada pada batas aman atau tidak. Pola aliran dan kecepatan aliran dapat diketahui dengan menggunakan software ANSYS Multiphysics, sedangkan nilai tegangan kombinasi (Von-Mises) dan deflection didapatkan dengan bantuan software AutoPipe. Dari hasil analisa menunjukkan bahwa jenis pola aliran yang terjadi di setiap expansion loop adalah turbulen. Besar tegangan yang terjadi berdasarkan ASME B31.8 masih dalam batas aman yaitu tegangan von-mises kurang dari 405.5 MPa untuk setiap variasi tipe expansion loop.
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Expansion loop are built in pipes to allow for deflection of the pipes and to prevent bending. However, a change of the pipes’ internal flow can cause turbulence of the fluid flow which creates stress on the pipes. The stress analysis is conducted to figure out whether the stress that occurs at L, U, Z elbow 90o and 45o expansion loop types with various additional arm lengths are still below safety limits. The flow pattern and velocity are obtained from ANSYS Multiphysics software, while the stress combination (Von – Mises) and deflection values are obtained with the AutoPipe software. The results of the analysis show that the flow pattern in all the expansion loop variations are turbulent. The stress that occurs in each variation are still below the safety limit based on ASME B31.8 which is a von – mises stress of 405 MPa.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSKe 532.051 Ùba a-1 3100018074651 |
| Uncontrolled Keywords: | tegangan, defleksi, expansion loop, aliran internal |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA347 Finite Element Method T Technology > TA Engineering (General). Civil engineering (General) > TA645 Structural analysis (Engineering) T Technology > TJ Mechanical engineering and machinery > TJ935 Pipe--Fluid dynamics. Tubes--Fluid dynamics T Technology > TS Manufactures > TS280 Pipe Bending, Tube Bending |
| Divisions: | Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis |
| Depositing User: | Moh. 'Azzam Nashrullah 'Ubaid |
| Date Deposited: | 19 Mar 2018 01:35 |
| Last Modified: | 23 Jul 2020 02:49 |
| URI: | http://repository.its.ac.id/id/eprint/49938 |
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