Analisis Kondisi Aliran Didalam Elbow Pada Heat Exchanger PT. Kilang Pertamina Internasional RU VI Balongan

Batan, Indra Nugraha (2024) Analisis Kondisi Aliran Didalam Elbow Pada Heat Exchanger PT. Kilang Pertamina Internasional RU VI Balongan. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Di dunia ini semakin majunya zaman maka energi pun ikut berubah. Dari yang awal mulanya menggunakan kayu hingga saat ini berubah menjadi minyak dan gas. Indonesia adalah negara yang kaya akan minyak dan gas. Maka, industri perminyakan khususnya di Indonesia akan ikut memajukan ekonomi negara. Namun, dengan itu permasalahan terbesar di industri perminyakan salah satu adalah terjadinya erosi dalam perpipaan, khususnya pada sambungan-sambungan elbow . Pada penelitian ini dilakukan analisis jenis aliran fluida naphtha yang terjadi pada elbow diameter 12”, 14” dan 16”dari perpipaan penukar panas (heat exchanger). Metode yang digunakan dalam penelitian ini adalah analisis dengan bantuan software Computational Fluids Dynamics (CFD), dengan langkah awal adalah perhitungan bilangan Reynold dengan memakai data lapangan di PT. Kilang Pertamina Internasional RU VI Balongan. Hasil penelitian menunjukkan semakin besar diameter pipa ke elbow , semakin tinggi bilangan Reynold yang terjadi. Berdasarkan hasil perhitungan, didapat nilai bilangan Reynold >2000. Hal ini menunjukkan terjadinya aliran transien saat fluida mengalir keluar elbow dan meningkat kecepatannya. Berdasarkan analisis dengan bantuan software CFD didapat distribusi kecepatan aliran setelah belokan keluar elbow pada diameter 16” lebih merata daripada aliram pada elbow diameter 12” dan 14”. Hal ini kemungkinan disebabkan karena perbedaan kecepatan aliran keluar elbow pada diameter 16” lebih kecil daripada diameter 12” dan 14”.

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In this world, as time advances, energy also changes. From the beginning using wood to now changing to oil and gas. Indonesia is a country rich in oil and gas. Therefore, the oil industry, especially in Indonesia, will help advance the country's economy. However, one of the biggest problems in the oil industry is erosion in piping, especially at elbow joints. In this study, an analysis of the type of naphtha fluid flow that occurs in the 12", 14" and 16" diameter elbows of the heat exchanger piping was carried out. The method used in this study is analysis with the help of Computational Fluids Dynamics (CFD) software, with the initial step being the calculation of the Reynolds number using field data at PT. Pertamina Internasional RU VI Balongan Refinery. The results of the study showed that the larger the diameter of the pipe to the elbow, the higher the Reynolds number that occurs. Based on the calculation results, the Reynolds number value was obtained >2000. This indicates the occurrence of transient flow when the fluid flows out of the elbow and increases its speed. Based on the analysis with the help of CFD software, the distribution of flow velocity after the elbow exit bend at a diameter of 16” is more even than the flow at the elbow diameters of 12” and 14”. This is likely due to the difference in flow velocity at the elbow exit at a diameter of 16” being smaller than at diameters of 12” and 14”.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Analisis Kecepatan Aliran, Bilangan Reynold, Elbow , Heat Exchangers, Simulasi,Elbow , Heat Exchanger, Flow Velocity Analysis, Reynold Number, Simulation
Subjects:	T Technology > T Technology (General) > T57.62 Simulation
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis
Depositing User:	Indra Nugraha Batan
Date Deposited:	05 Aug 2024 02:58
Last Modified:	05 Aug 2024 02:58
URI:	http://repository.its.ac.id/id/eprint/111123

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