Perencanaan Ulang Instalasi Pompa Sentrifugal Dari Tangki Timbun Ke Shelter Pengisian Di Perusahaan Distribusi Bahan Bakar Minyak

Reindera, Alfian Cahya (2026) Perencanaan Ulang Instalasi Pompa Sentrifugal Dari Tangki Timbun Ke Shelter Pengisian Di Perusahaan Distribusi Bahan Bakar Minyak. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Peningkatan pemanfaatan Fatty Acid Methyl Ester (FAME) sebagai komponen biodiesel menyebabkan sistem distribusi bahan bakar perlu disesuaikan dengan karakteristik fisik FAME yang memiliki viskositas dan densitas lebih tinggi dibandingkan solar konvensional. Perbedaan karakteristik tersebut dapat meningkatkan rugi-rugi aliran, kebutuhan head, konsumsi daya, serta risiko kavitasi sehingga instalasi pompa eksisting belum tentu bekerja secara optimal. Penelitian ini membahas perencanaan ulang instalasi pompa sentrifugal dari tangki timbun menuju shelter pengisian pada perusahaan distribusi bahan bakar minyak. Rumusan masalah penelitian meliputi penentuan kecepatan aliran pada variasi pipa berdiameter 10, 12, dan 16 inci, perhitungan head efektif instalasi, serta pemilihan pompa dan perancangan impeller yang sesuai dengan kebutuhan distribusi FAME.Metodologi penelitian diawali dengan pengumpulan data karakteristik fluida FAME pada temperatur 30°C, kapasitas aliran, dimensi dan panjang pipa, konfigurasi instalasi, serta jenis dan jumlah aksesoris perpipaan. Selanjutnya dilakukan perhitungan analitis yang mencakup kecepatan aliran, bilangan Reynolds, faktor gesekan, kerugian head mayor dan minor, head statis, head dinamis, head efektif, NPSHA, kecepatan spesifik, dan kebutuhan daya. Hasil analitis divalidasi melalui simulasi numerik menggunakan perangkat lunak Pipe Flow Expert. Pemilihan pompa dilakukan dengan memplot kapasitas dan head pada kurva karakteristik pompa, kemudian dilanjutkan dengan perancangan geometri impeller. Hasil penelitian menunjukkan bahwa head efektif berdasarkan perhitungan analitis sebesar 46 m, sedangkan simulasi Pipe Flow Expert menghasilkan head sebesar 46,780 m dengan perbedaan 1,6%, sehingga masih berada di bawah batas toleransi 2%. Pompa yang direkomendasikan memiliki kapasitas 300 m³/jam, head 50 m, efisiensi 80%, NPSHR kurang dari 3 m, daya motor 55 kW, putaran 1450 rpm, diameter inlet 150 mm, dan diameter outlet 125 mm. Pompa yang dipilih berdasarkan katalog adalah pompa sentrifugal seri KSB Etanorm 155-125-400. Hasil perancangan menghasilkan impeller tipe closed moderate specific speed dengan diameter poros 110 mm, diameter inlet 187 mm, diameter outlet 355 mm, sudut sudu inlet 17°, sudut sudu outlet 25°, lebar sisi inlet 75 mm, lebar sisi outlet 43 mm, dan jumlah sudu delapan buah. Dengan demikian, rancangan instalasi dan pompa yang dipilih dinilai mampu memenuhi kebutuhan distribusi FAME secara efektif serta memiliki kesesuaian yang baik antara hasil perhitungan analitis dan numerik.
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The increasing utilization of Fatty Acid Methyl Ester (FAME) as a biodiesel component requires fuel distribution systems to be adapted to the physical characteristics of FAME, which has higher viscosity and density than conventional diesel fuel. These differences may increase flow losses, head requirements, power consumption, and the risk of cavitation, causing the existing pump installation to operate less than optimally. This study discusses the redesign of a centrifugal pump installation from a storage tank to a filling shelter at a fuel distribution company. The research problems include determining the flow velocity in 10-, 12-, and 16-inch pipes, calculating the effective head of the installation, and selecting a suitable pump and impeller design for FAME distribution. The research methodology began with the collection of data on the characteristics of FAME at a temperature of 30°C, flow capacity, pipe dimensions and lengths, installation configuration, and the types and quantities of piping accessories. Analytical calculations were then performed, including flow velocity, Reynolds number, friction factor, major and minor head losses, static head, dynamic head, effective head, NPSHA, specific speed, and power requirements. The analytical results were validated through numerical simulation using Pipe Flow Expert software. Pump selection was carried out by plotting the required capacity and head on the pump characteristic curve, followed by the design of the impeller geometry. The results show that the effective head obtained from the analytical calculation was 46 m, while the Pipe Flow Expert simulation produced a head of 46.780 m, with a difference of 1.6%, which remains below the allowable tolerance of 2%. The recommended pump has a capacity of 300 m³/h, a head of 50 m, an efficiency of 80%, an NPSHR of less than 3 m, a motor power of 55 kW, a rotational speed of 1450 rpm, an inlet diameter of 150 mm, and an outlet diameter of 125 mm. Based on the pump catalogue, the selected pump is the KSB Etanorm 155-125-400 centrifugal pump. The impeller design resulted in a closed moderate specific speed impeller with a shaft diameter of 110 mm, an inlet diameter of 187 mm, an outlet diameter of 355 mm, an inlet blade angle of 17°, an outlet blade angle of 25°, an inlet passage width of 75 mm on each side, an outlet passage width of 43 mm on each side, and eight blades. Therefore, the proposed installation and selected pump are considered capable of meeting the FAME distribution requirements effectively, with good agreement between the analytical and numerical results.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	FAME, pompa sentrifugal, head efektif, Pipe Flow Expert, KSB Etanorm, impeller. ======================================================================================================================== FAME, centrifugal pump, effective head, Pipe Flow Expert, KSB Etanorm, impeller.
Subjects:	T Technology > TJ Mechanical engineering and machinery T Technology > TJ Mechanical engineering and machinery > TJ919 Centrifugal pumps--Design and construction. T Technology > TJ Mechanical engineering and machinery > TJ935 Pipe--Fluid dynamics. Tubes--Fluid dynamics
Divisions:	Faculty of Vocational > Mechanical Industrial Engineering (D4)
Depositing User:	Alfian Cahya Reindera
Date Deposited:	04 Aug 2026 01:12
Last Modified:	04 Aug 2026 01:12
URI:	http://repository.its.ac.id/id/eprint/142491

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