Penentuan Allowable Span Antar Penyangga Pipa SLF Berdasarkan Tegangan, Defleksi, Frekuensi Alami

Mahardhika, Pekik

doi:10.31284/j.iptek.2017.v21i2.149

Cited by 6 publications

(6 citation statements)

References 1 publication

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“…Beban pipa didapat dari simulasi software Caesar II, outputnya terdiri dari beban pipa pada saat kosong (empty load), pada saat beroperasi (operation load), dan pada saat diisi air penuh (hydrotest load). Berat beban pipa merupakan beban sustain sehingga pipa memerlukan penyangga (Mahardika, 2017). Gambar 4 menunjukkan model 3 dimensi Pipe Stress Analysis Stasiun PGN untuk tipe 1, 3a, 3b, dan tipe 4a, sedangkan Gambar 5 menunjukkan tipe 4b.…”

Section: Pipe Stress Analysis (Psa)unclassified

Analisis Pipe Support Pada Proyek Stasiun Pertamina Gas Negara (PGN) dan Pertagas Bitung Tangerang

Rachmanudin

2023

Bull Civ Eng

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Pertamina Gas Negara (PGN) berencana melakukan pembangunan pipeline 24“ sepanjang 1500 m di Stasiun Pertagas Bitung dan pemindahan stream Orifice Meter, Filter, Pressure Control Valve beserta struktur pipe support dari Stasiun PGN Hurip Jaya ke Stasiun PGN Bitung. Dalam makalah ini penulis bermaksud untuk menganalisis jenis pondasi serta struktur pipe support yang akan digunakan dengan tujuan menyangga pipa gas berdiameter 20” dan 24” di Stasiun PGN dan Pertagas. Untuk mencapai tujuan pekerjaan ini dilakukan survey topografi, survey soil investigasi, menentukan beban struktur, menentukan jenis pondasi, serta profil struktur. Survey topografi dilakukan untuk mendapatkan gambaran situasi di lapangan, sedangkan soil investigasi untuk mendapatkan propertis dan daya dukung tanah. Beban struktur pipe support terdiri dari kombinasi beban mati, beban pipa, beban angin, dan beban gempa. Jenis pondasi yang digunakan yaitu squarepile dan boredpile. Pada area Stasiun PGN pipe support tipe 4a menggunakan boredpile karena keterbatasan alat Hydraulic Static Pile Driver (HSPD) untuk menjangkau titik pile rencana. Di Stasiun Pertagas pipe support tipe 3 berbentuk kantilever karena di underground terdapat utilitas pipa gas sehingga titik rencana digeser dari as pipeline. Maka dari itu pemilihan jenis pondasi dan profil struktur bergantung pada kondisi lapangan karena banyaknya utilitas exisiting di underground maupun aboveground sehingga perlu justifikasi agar tidak merusak utilitas tersebut.

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Section: Pipe Stress Analysis (Psa)unclassified

Analisis Pipe Support Pada Proyek Stasiun Pertamina Gas Negara (PGN) dan Pertagas Bitung Tangerang

Rachmanudin

2023

Bull Civ Eng

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“…Sehingga penentuan maximum allowable pipe span antara penyangga sangatlah penting karena mempertimbangkan keselamatan serta biaya (Vakharia & Farooq, 2009). Support berfungsi untuk menumpu berat dari sistem perpipaan (Mahardhika, 2017). Kadang di industri untuk mengatasi sistem perpipaan yang tidak fleksibel menggunakan expansion joint.…”

Section: Pendahuluanunclassified

Analysis of Symmetrical and Nonsymmetrical Vertical Expansion Loop to Increase Flexibility And Reduce Pipe Stress Based On ASME B31.3

Mahardhika¹,

Husodo²,

Kusuma³

et al. 2021

TEKNIK

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Thepiping system is a medium used to convey, distribute, mix, separate, discharge, meter, control or snub fluid flows, and transmit a fluid pressure. The piping system design will have stresses due to thermal and pressure effect. The thermal effect induce pipe expansion. The pipe expansion affect to pipe flexibility, so it is necessary to design an expansion loop. Expansion loop is a method used to increase flexibility in piping systems. This article aims to analyze symmetrical and non-symmetrical in vertical expansion loops whether it can increase flexibility and reduce pipe stress. This article conducts an expansion loop design with 3 trials, namely trial 1 (Vertical Expansion Loop), trial 2 (Nonsymmetrical Vertical Expansion Loop 1), and trial 3 (Nonsymmetrical Vertical Expansion Loop 2). The three trials were compared for flexibility and stress values based on ASME B31.3 requirements. The study results show that all trial 1, trial 2, and trial 3 have good flexibility with a value of 0.00016 because not exceed the requirements of ASME B31.3. The highest design code stress value in trial 1 is 5955 psi (Node A07F), trial 2 is 5906 psi (Node A05F), and trial 3 is 5906 psi (Node A06N). All trials have a code stress not exceeding the allowable stress (20000 psi). So that the symmetrical or nonsymmetrical design of the vertical expansion loop can both increase flexibility and reduce pipe stress.

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“…This pipeline must be supported to withstands it so that the pipe damaged could be avoided. The damaged could be from initial crack following by creeping until broken [8].…”

Section: Calculation Of Pipe Supportmentioning

confidence: 99%

Design of Blowdown Line LNG Filling Station ISO Tank

Wahyuddin¹

2019

Journal of Vocational Studies on Applied Research

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LNG (Liquid Natural Gas) is a liquefied natural gas, with composition of 87% - 96% methane, 1,8-5,1% ethan, 0,1-5,1% propane and other compounds. The composition of natural gas (LNG formation) varies depending on the source and the process of its formation. Methane gas in LNG has odorless, non-corrosive and non-toxic properties (Air Products, 1999). LNG is basically an alternative method to deliver gas from producer to consumer. When cooled to -162˚C at 1 atm pressure, natural gas becomes liquid and its volume decreases up to 600 times (Handbook of Liquefied Natural Gas, 2014). With such a large volume reduction, liquefied natural gas (LNG) can be transported through the Tanker Ship and the ISO Tank Truck. PT Badak NGL has 3 (Three) T.U.K.S (Terminal For Ownership) As Tanker Ship Facilities and 1 (One) LNG Filling Station as a means of filling LNG to ISO Tank. Development of business process of PT. Badak NGL leads to an increase in LNG filling Station capacity. Along with the plan to increase the filling station capacity, the problem of BOG (Blow of Gas) wastage along with some LNG to ground flare becomes a serious concern. When the number of fillling stations is only 1 (one) station, the BOG wasted condition is not significant. However, with plans to increase the number of filling stations, BOG wasted need to be considered to be fully utilized. Therefore, there is a thought to utilize BOG to become more economic value, through the design of blowdown line on LNG ISO Tank filling station. In the Design of this line Blowdown, Using Pipe Ø2 "(PIPE BE 40S SS A312-TP305 SMLS) interconnecting with Pipe Ø6" (PIPE BE 40S SS A312-TP305 SMLS) BOG Header of new Filling Station under construction (Beginning January 2018 ).

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Penentuan Allowable Span Antar Penyangga Pipa SLF Berdasarkan Tegangan, Defleksi, Frekuensi Alami

Cited by 6 publications

References 1 publication

Analisis Pipe Support Pada Proyek Stasiun Pertamina Gas Negara (PGN) dan Pertagas Bitung Tangerang

Analisis Pipe Support Pada Proyek Stasiun Pertamina Gas Negara (PGN) dan Pertagas Bitung Tangerang

Analysis of Symmetrical and Nonsymmetrical Vertical Expansion Loop to Increase Flexibility And Reduce Pipe Stress Based On ASME B31.3

Design of Blowdown Line LNG Filling Station ISO Tank

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