Afif, Fadhilah (2017) Optimisasi Pada Desain Ulang Shell And Tube Heat Exchanger Menggunakan Helical Baffle Pada Crude Preheat Train Di PT Pertamina (Persero) RU V Balikpapan. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Crude preheat train adalah jaringan heat exchanger yang berfungsi untuk mengambil kembali panas dari fluida hasil proses untuk fluida bahan baku. Heat exchanger yang umum terdapat pada crude preheat train adalah jenis shell and tube. Performansi dari shell and tube heat exchanger dapat dilihat dari nilai overall heat transfer coefficient yang dihasilkan dari heat exchanger itu sendiri. Untuk meningkatkan nilai overall heat transfer coefficient dilakukan dengan mengubah arah aliran fluida di sisi shell dengan menggunakan baffle. Segmental baffle membuat arah aliran fluida pada shell menjadi zig zag ketika melintasi tube bundle sehingga nilai overall heat transfer coefficient akan meningkat, namun pressure drop juga akan meningkat karena fluida berubah arah dengan menabrak baffle itu sendiri. Untuk itu dilakukan optimisasi desain dengan mengubah dari segmental baffle menjadi helical baffle agar didapatkan nilai overall heat transfer coefficient yang tingga dan shell pressure drop yang rendah. Dari hasil optimisasi yang telah dilakukan didapatkan overall heat transfer coefficient meningkat dengan rata-rata sebesar 3.36%, dan shell pressure drop berkurang dengan rata-rata sebesar -7.12%.
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Crude preheat train is a heat exchanger network that serves to recover heat from process fluids to raw material fluids. Heat exchangers that are commonly found in the crude preheat train is shell and tube type. The performance of the shell and tube heat exchanger can be seen from the overall heat transfer coefficient generated by the heat exchanger itself. To increase the value of overall heat transfer coefficient is done by changing the direction of fluid flow on the shell side by using baffles. Segmental baffles make the direction of the fluid flow in the shell to zig zag when crossing the tube bundle so that the overall heat transfer coefficient value will increase, but the pressure drop will also increase as the fluid changes direction by crashing the baffle itself. To increase overall heat transfer coefficient while maintaining low shell pressure drop, design optimization was done by changing from segmental baffle to helical baffle. From the optimization result, the overall heat transfer coefficient increased by an average of 3.36%, and the shell pressure drop decreased by an average of -7.12%.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Heat exchanger, segmental baffle, helical baffle, overall heat transfer coefficient, shell pressure drop |
| Subjects: | T Technology > T Technology (General) |
| Divisions: | Faculty of Industrial Technology > Physics Engineering > 30201-(S1) Undergraduate Thesis |
| Depositing User: | Fadhilah Afif |
| Date Deposited: | 13 Nov 2024 08:35 |
| Last Modified: | 13 Nov 2024 08:35 |
| URI: | http://repository.its.ac.id/id/eprint/48572 |
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