Perancangan Pressure Vessel C-1-113 Untuk Tekanan 49,8 psi Dengan Menggunakan Stiffener Ring di PT Boma Bisma Indra untuk Proyek RDMP Balikpapan

Vanadio, Titus (2023) Perancangan Pressure Vessel C-1-113 Untuk Tekanan 49,8 psi Dengan Menggunakan Stiffener Ring di PT Boma Bisma Indra untuk Proyek RDMP Balikpapan. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pressure vessel atau yang biasa disebut dengan bejana tekan adalah tangki atau wadah tertutup yang dirancang untuk menampung fluida gas atau cair bertekanan tinggi dan sekaligus menahan tekanan eksternal. Pressure vessel sering kali digunakan dalam kondisi menahan tekanan internal karena adanya fluida sekaligus harus mampu menghadapi kondisi ketika full vacuum yang menyebabkan pressure vessel rawan mengalami buckling. Oleh karena itu, pada penelitian ini perancangan pressure vessel C-1-113 menggunakan stiffener ring sebagai komponen support tambahan untuk menunjang nilai Maximum Allowable Exernal Pressure (MAEP) agar mampu menahan external pressure sehingga tidak terjadi buckling pada saat pengoperasiannya. Apabila terjadi kesalahan dalam merancang pressure vessel C-1-113, maka dapat terjadi kerusakan dan fluida di dalamnya dapat mengakibatkan ledakan yang sangat dahsyat. Penelitian ini diawali dengan membaca studi literatur dan pengumpulan data pressure vessel C-1-113. Pressure vessel ini merupakan sebuah Desalting Water Surge Drum yang dirancang dengan diameter dalam sebesar 86,61 in, jarak tangent line to tangent line (TL to TL) sebesar 248 in, dengan jenis head adalah ellipsoidal, dengan jenis material SA-516 Gr 70, corrotion allowance sebesar 6 mm,dan tekanan saat beroperasi sebesar 49,8 psi. Teori yang digunakan mengacu pada ASME SEC VIII Div I, yang menghasilkan ketebalan nominal dari shell dan head sebesar 0,59 in atau menggunakan plat dengan ketebalan 15 mm. Dengan ketebalan plat 0,59 in dan ditambahkankan 2 buah stiffener ring, pressure vessel dikatakan layak karena desain kriteria sudah terpenuhi. Untuk menganalisa tegangan, penelitian ini juga menggunakan teori combined loads dan metode elemen hingga sehingga didapatkan hasil dari perhitungan tegangan secara teoritik yang berada dibawah tegangan izin material. Adapun perhitungan tegangan secara teoritik pressure vessel dihitung pada kondisi bekerja beserta berbagai kemungkinan yang akan terjadi seperti tekanan yang ada saat pressure vessel sedang beroperasi dan pengurangan ketebalan pressure vessel karena fluida yang sifatnya korosif
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A pressure vessel or commonly referred to as a pressure vessel is a closed tank or container designed to accommodate high pressure gas or liquid fluids and simultaneously withstand external pressure. Pressure vessels are often used in conditions of holding internal pressure due to the presence of fluid and must be able to deal with conditions when a full vacuum causes the pressure vessel to be prone to buckling. Therefore, in this study the design of the C-1-113 pressure vessel uses a stiffener ring as an additional support component to support the Maximum Allowable External Pressure (MAEP) value so that it is able to withstand external pressure so that buckling does not occur during operation. If there is an error in designing the C-1-113 pressure vessel, damage can occur and the fluid inside can turn into a very powerful explosion. This research begins with reading literature and collecting data on pressure vessel C-1-113. This pressure vessel is a Desalting Water Surge Drum designed with an inner diameter of 86.61 in, a tangent line to tangent line (TL to TL) distance of 248 in, with an ellipsoidal head type, with SA-516 Gr 70 material type, corrosion allowance of 6 mm, and operating pressure of 49.8 psi. The theory used refers to ASME SEC VIII Div I, which results in a nominal thickness of shell and head of 0.59 in or using a plate with a thickness of 15 mm. With a plate thickness of 0.59 in and 2 stiffener rings added, the pressure vessel is said to be feasible because the design criteria have been met. To analyze stresses, this research also uses the combined loads theory and the finite element method so that the results obtained from theoretical stress calculations are below the allowable stress of the material. The theoretical stress calculation for pressure vessels is calculated under working conditions along with various possibilities that will occur such as the pressure that exists when the pressure vessel is operating and the reduction in the thickness of the pressure vessel due to corrosive fluids

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Pressure Vessel, Stiffener Ring, Design Pressure, Combined Loadings
Subjects:	T Technology > TJ Mechanical engineering and machinery
Divisions:	Faculty of Vocational > Mechanical Industrial Engineering
Depositing User:	Titus Vanadio
Date Deposited:	31 Jul 2023 07:58
Last Modified:	31 Jul 2023 07:58
URI:	http://repository.its.ac.id/id/eprint/100170

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