Rahmatulah, Dio (2020) Analisis Pengaruh Trapezoidal Baffle Dan Helical Ribs Tube Terhadap Kinerja Heat Exchanger Tipe Shell And Tube Menggunakan Metode Computational Fluid Dynamics. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Heat exchanger merupakan alat yang berfungsi sebagai pemanas dan pendingin secara bersamaan. Dalam beberapa tahun terakhir peran heat exchanger meningkat drastis dalam sudut pandang konservasi, konversi, recovery dan keberhasilannya dalam mengimplementasikan sumber daya energi yang baru. Peningkatan kinerja heat exchanger tipe shell and tube difokuskan pada bentuk baffle dan jenis tube yang digunakan. Penambahan macam-macam baffle seperti rod baffle, flower baffle, laddder-tape baffle dan shutter baffle menyebabkan nilai pressure drop dari heat exchanger meningkat. Sehingga dilakukan penelitian mengenai trapezoidal baffle dan helical ribs tube yang dapat meningkatkan laju perpindahan panas pada heat exchanger dan juga mengurangi yang terjadi pressure drop. Variasi yang dilakukan pada trapezoidal baffle yaitu dengan memvariasikan sudut kemiringan baffle dengan nilai 20°,30°, dan 40°. Untuk masing-masing baffle dengan sudut kemiringan yang berbeda, ditambahkan juga helical ribs tubes. Hasil penelitian yang dilakukan didapatkan bahwa nilai laju perpindahan panas tertinggi terjadi pada variasi sudut kemiringan trapezoidal baffle 40° yang dipasangkan helical ribs tube dengan nilai laju perpindahan panasnya sebesar 263946,9137 Watt. Sedangkan untuk pressure drop terkecil dari variasi yang sama terjadi pada variasi heat exchanger dengan sudut kemiringan trapezoidal baffle sebesar 40° yang dipasangkan helical ribs tube dengan nilai pressure drop sebesar 70,60393 Pascal.
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Heat exchangers are devices that function as heaters and coolers simultaneously. In recent years the role of heat exchangers has increased dramatically in terms of conservation, conversion, recovery and success in implementing new energy resources. Improved performance of shell and tube type heat exchangers is focused on the shape of the baffles and the type of tube used. The addition of various baffles such as rod baffles, flower baffles, laddder-tape baffles and shutter baffles causes the pressure drop value of the heat exchanger to increase. Therefore, research on trapezoidal baffles and helical ribs tubes are needed so it can increase the rate of heat transfer in the heat exchanger as well as reducing the pressure drop. The variation made on the trapezoidal baffle is by varying the inclination angle of the baffles with values of 20 °, 30 ° and 40°. For each baffle with a different inclination angle, also added helical ribs tubes. The results of the study showed that the highest value of heat transfer rate occurred in the trapezoidal baffle inclination angle variation 40° which was paired with helical ribs tube with a value of heat transfer rate of 263946,9137 Watt. As for the smallest pressure drop of the same variation occurs in the variation of the heat exchanger with a trapezoidal inclination angle of 40 ° with a helical ribs tube with a pressure drop of 70.60393 Pascal.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | 3100020084718 RSF 621.402 5 Rah a-1 |
| Uncontrolled Keywords: | Heat exchanger Shell and Tube, Trapezoidal Baffle, Helical Ribs Tube. |
| Subjects: | T Technology > T Technology (General) > T57.62 Simulation T Technology > TA Engineering (General). Civil engineering (General) > TA357 Computational fluid dynamics. Fluid Mechanics T Technology > TJ Mechanical engineering and machinery > TJ263 Heat exchangers |
| Divisions: | Faculty of Industrial Technology and Systems Engineering (INDSYS) > Physics Engineering > 30201-(S1) Undergraduate Thesis |
| Depositing User: | Dio Rahmatulah |
| Date Deposited: | 21 Dec 2022 03:19 |
| Last Modified: | 21 Dec 2022 03:19 |
| URI: | http://repository.its.ac.id/id/eprint/74527 |
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