Studi Numerik Pengaruh Variasi Jenis Baffle Plate Terhadap Karakteristik Aliran Fluida Pada Heat Exchanger Shell And Tube

Prabowo, Zufar Hakim (2026) Studi Numerik Pengaruh Variasi Jenis Baffle Plate Terhadap Karakteristik Aliran Fluida Pada Heat Exchanger Shell And Tube. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Heat exchanger tipe shell and tube merupakan peralatan penukar panas yang banyak digunakan di industri karena kemampuannya dalam menangani tekanan dan temperatur operasi yang tinggi. Kinerja heat exchanger sangat dipengaruhi oleh konfigurasi internal, khususnya jenis baffle plate yang berperan dalam mengarahkan aliran fluida pada sisi shell. Penelitian terdahulu menunjukkan bahwa permasalahan fouling dan kebocoran pada beberapa unit heat exchanger dapat menyebabkan peningkatan beban operasi pada unit lainnya, sehingga diperlukan perancangan heat exchanger baru dengan performa aliran yang lebih optimal. Namun, kajian numerik yang secara spesifik membandingkan pengaruh variasi jenis baffle plate terhadap karakteristik aliran fluida masih terbatas. Penelitian ini bertujuan untuk menganalisis pengaruh variasi jenis baffle plate, yaitu single segmental baffle, double segmental baffle, dan triple segmental baffle, terhadap karakteristik aliran fluida pada heat exchanger shell and tube. Analisis dilakukan menggunakan metode Computational Fluid Dynamics (CFD) dengan bantuan perangkat lunak ANSYS Fluent. Parameter yang dianalisis meliputi distribusi kecepatan, distribusi tekanan, dan pressure drop pada sisi shell. Geometri heat exchanger mengacu pada desain hasil penelitian terdahulu, sedangkan simulasi dilakukan pada kondisi aliran steady state dengan properti fluida konstan. Hasil menunjukkan bahwa single segmental baffle menghasilkan pressure drop tertinggi (1,079 bar) sekaligus koefisien perpindahan panas dan turbulensi tertinggi, sedangkan konfigurasi double dan triple segmental baffle mampu menurunkan pressure drop masing-masing hingga sekitar 36% dan 37% (menjadi 0,688 bar dan 0,682 bar) dengan heat duty yang relatif tidak berubah (±7,41 MW) dan efektivitas yang hanya turun tipis (54,85% → 52,31% → 50,43%). Konfigurasi double dan triple segmental baffle terbukti memberikan keseimbangan yang lebih baik antara kualitas aliran dan kerugian tekanan dibandingkan single segmental baffle, sehingga penelitian ini dapat menjadi referensi dalam perancangan dan optimasi heat exchanger shell and tube berbasis analisis numerik.
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Shell and tube heat exchangers are widely used in industry due to their ability to handle high operating pressures and temperatures. The performance of heat exchangers is greatly influenced by their internal configuration, particularly the type of baffle plate used to direct fluid flow on the shell side. Previous studies have shown that fouling and leakage problems in some heat exchanger units can cause an increase in the operating load on other units, thus requiring the design of new heat exchangers with more optimal flow performance. However, numerical studies that specifically compare the effect of baffle plate type variations on fluid flow characteristics are still limited. This study aims to analyze the effect of variations in baffle plate types, namely single segmental baffle, double segmental baffle, and triple segmental baffle, on fluid flow characteristics in shell and tube heat exchangers. The analysis was performed using the Computational Fluid Dynamics (CFD) method with the help of ANSYS Fluent software. The parameters analyzed included velocity distribution, pressure distribution, and pressure drop on the shell side. The heat exchanger geometry referred to the design of previous studies, while the simulation was performed under steady-state flow conditions with constant fluid properties. Results show that the single segmental baffle produced the highest pressure drop (1.079 bar) along with the highest heat transfer coefficient and turbulence intensity, while the double and triple segmental baffle configurations reduced pressure drop by approximately 36% and 37% (to 0.688 bar and 0.682 bar, respectively) with nearly unchanged heat duty (±7.41 MW) and only a slight decrease in effectiveness (54.85% → 52.31% → 50.43%). The double and triple segmental baffle configurations were shown to provide a better balance between flow quality and pressure loss than the single segmental baffle, so this study can serve as a reference in the design and optimization of shell and tube heat exchangers based on numerical analysis.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	heat exchanger, shell and tube, baffle plate, CFD, pressure drop
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ263 Heat exchangers
Divisions:	Faculty of Vocational > Mechanical Industrial Engineering (D4)
Depositing User:	Zufar Hakim Prabowo
Date Deposited:	01 Aug 2026 03:47
Last Modified:	01 Aug 2026 03:47
URI:	http://repository.its.ac.id/id/eprint/141045

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