Analisis Keandalan Pada Turbin Gas Di PT. Petrokimia Gresik-Jawa Timur

Prastiko, Akbar (2015) Analisis Keandalan Pada Turbin Gas Di PT. Petrokimia Gresik-Jawa Timur. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Turbin gas adalah suatu alat yang memanfaatkan gas sebagai fluida untuk memutar turbin dengan pembakaran internal sehingga mampu memutar generator untuk menghasilkan listrik. Turbin gas memiliki tingkat bahaya yang besar, sehingga perlu dilakukan penelitian untuk menganalisis seberapa besar potensi kegagalan komponen-komponen pada turbin gas tersebut. Analisis kegagalan dilakukan secara kuantitatif dan kualitatif. Analisis kuantitatif dilakukan dengan perhitungan keandalan seluruh komponen dan penentuan preventive maintenance. Analisis kualitatif dilakukan dengan metode Failure Mode and Effect Analisys (FMEA) dan Fault Tree Analisys (FTA). Penentuan keandalan yang dilakukan dengan bantuan software reliasoft weibull 6++ menunjukkan saat 8760 jam operasional atau 1 tahun, komponen yang memiliki keandalan paling rendah adalah vibration monitoring dengan nilai sebesar 0,52. Keandalan sistem pada saat 4380 jam atau 6 bulan adalah 0,798, nilai ini digolongkan sebagai moderate. Hasil analisis FMEA dan risk priority number (RPN) seluruh komponen, menunjukkan RPN tertinggi yaitu TTXD. Hasil fault tree analysis (FTA), menunjukkan top event dari turbin gas adalah GTG trip dan basic event adalah kesulitan penataan alur tubing hingga kesalahan dari pihak operator yang mengakibatkan proses identifikasi pada komponen TTXD mengalami gangguan. ================================================================================================ Gas turbine is a device that utilizes gas as a fluid to rotate the turbine with an internal combustion so as to turn a generator to produce electricity. Gas turbine has a great degree of danger, so it is necessary to study to analyze how big the potential failure of components in the gas turbine. Failure analysis performed quantitatively and qualitatively. Quantitative analysis was performed by calculating the reliability of all components and the determination of preventive maintenance. Qualitative analysis was conducted using Failure Mode and Effect Analisys (FMEA) and Fault Tree Analisys (FTA). Determination of reliability that is done with the help of software reliasoft weibull 6 ++ indicates the current 8760 operating hours or 1 year, the component that has the lowest reliability, namely vibration monitoring with a value of 0.52. The reliability of the system at the time of 4380 hours0r 6 month is 0.798, this value is classified as moderate. FMEA analysis results and risk priority number (RPN) all components, showed the highest RPN TTXD. Results fault tree analysis (FTA), shows a top event of gas turbine is GTG trip and basic event is flow tubing arrangement trouble until the fault of the operator resulting in impaired identification process of TTXD components.

Item Type: Thesis (Undergraduate)
Additional Information: RSF 621.433 Pra a
Uncontrolled Keywords: Turbin gas, Keandalan, FMEA, FTA
Subjects: T Technology > TJ Mechanical engineering and machinery > TJ266 Turbines. Turbomachines (General)
Divisions: Faculty of Industrial Technology > Physics Engineering > 30201-(S1) Undergraduate Thesis
Depositing User: Mr. Tondo Indra Nyata
Date Deposited: 03 May 2018 04:32
Last Modified: 03 May 2018 04:32
URI: https://repository.its.ac.id/id/eprint/51843

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