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All Journal Teknik Mesin "TEKNOLOGI" IDENTIFIKASI: Jurnal Ilmiah Keselamatan, Kesehatan Kerja dan Lindungan Lingkungan Journal of Applied Mechanical Engineering and Renewable Energy (JAMERE)
Akhmad Nurdin
Universitas Balikpapan
Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health Transportation Other

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Analisis Performansi Steam Turbine Generator 1 pada Power Plant 2 Utilities PT Pertamina RU V Balikpapan Gunawan -; Akhmad Nurdin; Ahmad Ria Saifuddin
Teknik Mesin "TEKNOLOGI" Vol 23, No 1 OKT (2022): Jurnal Teknik Mesin Teknologi
Publisher : Universitas Negeri Makassar

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Abstract

Energi listrik merupakan energi yang sangat dibutuhkan oleh semua orang pada saat ini. Terutama di kilang RU V Balikpapan, energi listrik digunakan sebagai penunjang operasional kilang. Energi listrik dihasilkan dari Generator yang digerakkan oleh Steam Turbine. Agar tidak terganggu operasional kilang yang sedang berlangsung, maka diperlukan penelitian tentang performansi Steam Turbine Generator. Penelitian mengenai performansi Steam Turbine Generator dilakukan di PT. Pertamina RU V Balikpapan, jl. Yos Sudarso No. 1 Balikpapan mulai September 2021 sampai Januari 2022. Nilai variabel bebas penelitian ini adalah pressure steam inlet dan temperature steam inlet. Sedangkan variabel terikat penelitian ini adalah nilai enthalpy dari steam inlet dan nilai efisiensi yang didapatkan. Dan untuk variabel kontrol penelitian ini adalah bukaan governor valve inlet steam. Berdasarkan hasil penelitian pertama bulan Desember 2020 diperoleh nilai efisiensi Steam Turbine Generator 1 pada minggu pertama 59,073 %, minggu kedua 53,692 %, minggu ketiga 60,449 %, minggu keempat 61,509 %. Untuk penelitian kedua pada bulan Desember 2021 nilai efisiensi yang diperoleh pada minggu pertama 61,564 %, minggu kedua 65,074%, minggu ketiga 62,429 %, minggu keempat 60,850 %. Bervariasinya nilai efisiensi diakibatkan perubahan daya listrik yang dihasilkan. Daya yang dihasilkan semakin mendekati nilai Most Economic Rating maka semakin besar nilai efisiensi yang didapatkan.
Analisis Performansi Pompa Offloading 50-PA-4501A pada Anjungan Main Stupa Puji Saksono; Akhmad Nurdin; Gilang Aditya
Journal of Applied Mechanical Engineering and Renewable Energy Vol 1 No 2: August 2021
Publisher : Indonesian Society of Applied Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (356.526 KB) | DOI: 10.52158/jamere.v1i2.222

Abstract

The activities of gas well exploitation have some problems. One of the problems is the amount of liquid (water) in the tubing column which obstructing the gas production. One of the ways to overcome the problem is to offload activity. One of the important equipment during offload activities is the offloading pump. An offloading pump is used to transfer liquid (water) from the well that has been collected in a vessel to the trunkline. This study aims to see the changes in the performance of the offloading pump between the initial conditions according to the manufacturer's specifications and the current condition after being used for ± 9 years. The type of pump being tested is a multi-stage centrifugal pump model 20 WUC-2R-19. The performance testing of offload pump is done by varying the discharge valve opening by 25%, 50%, 75%, and 100%. After that, compare the actual pump performance with the corrected data using the affinity law. The test performed during the offload process occur, and the fluid characteristics assume to be constant. The results showed that there was a decrease in performance between the initial operating conditions in 2011 with the actual conditions in 2020. The actual capacity of the pump decreased from 24 m3/h to be 23.45 m3/h. The efficiency of the offload pump decreased from the initial condition of 80% to 7.71%. The decrease in efficiency for 9 years is 2.29% or 0.25% per year.
Analisis Misalignment Pada Unit High Pressure Fluidized Bad Menggunakan Dial Indicator Suherna Suherna; Nikho Bayu Kusuma Kelana; Akhmad Nurdin
IDENTIFIKASI Vol 8 No 2 (2022): IDENTIFIKASI
Publisher : Program Studi D-IV K3

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36277/identifikasi.v8i2.251

Abstract

Rotation machines are one of the driving machines that are widely used in industrial factories because they are strong, reliable, easy to maintain and efficient. Installation of the machine with other equipment requires accuracy so that the axis between the two is truly an axis of "alignment". The importance of accurate alignment of the machine is the main reason for conducting this research, repairs that occur in the machine that require a shift between the motor and fan from their initial position need to be aligned. The method used is a rim and face dial indicator, measuring the axle on the face and rim hub that does not move and measuring the soft foot that occurs on the motor and aerator legs and measuring run out of the clutch at positions 0°, 90°, 180° and 270°. After getting the results of pre-alignment measurements and calculations, the HPFB A position of the aerator must be added with a shim for IB of 1,4 mm and OB of 1,99 mm. To shift the aerator the IB leg needs to be shifted to the left by 0,5 mm and the OB leg is shifted to the right by 1,1 mm. HPFB B aerator position must be added by shim for IB of 1,26 mm and OB of 1,86 mm. To shift the aerator, the IB leg needs to be shifted to the left by 0,45 mm and the OB leg is shifted to the right by 0,96 mm. HPFB C aerator position must be added with shim for IB of 1,4 mm and OB of 1,99 mm. To shift the aerator, the IB foot needs to be shifted to the left by 0,6 mm and the OB leg is shifted to the right by 1 mm.
Pengaruh Variasi Jumlah Sudu Terhadap Kinerja Turbin Hidrokinetik Tipe NACA0012 Akhmad Nurdin; Gunawan -; Ridwan Rasyid
Teknik Mesin "TEKNOLOGI" Vol 25, No 1 OKT (2023): Jurnal Teknik Mesin TEKNOLOGI
Publisher : Universitas Negeri Makassar

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Abstract

Energi hidrokinetik adalah energi listrik yang dihasilkan dari gerakan alami aliran sungai melalui perangkat elektromagnetik tanpa head yang memadai. Pada penelitian sebelumnya pemanfaatan aliran sungai hilir sebagai sumber energi listrik menggunakan turbin sumbu vertikal. Namun belum ditemukan penelitian yang mengkaji pengaruh jenis turbin dan jumlah sudu turbin hidrokinetik bersumbu horizontal yang digunakan langsung di sungai yang dalam. Penelitian ini bertujuan untuk mengkaji pengaruh perbedaan jumlah sudu turbin hidrokinetik pada sumbu horizontal yang digunakan langsung di sungai dalam untuk menghasilkan keluaran daya listrik yang optimal. Penelitian ini dilakukan secara eksperimental menggunakan turbin hidrokinetik dengan variasi 3 jenis sudu berdasarkan literatur dan penelitian sebelumnya. Data pengukuran yang dihasilkan pada kedalaman 1,2 meter untuk masing-masing jenis dikumpulkan. Data tersebut kemudian dianalisis dengan menggunakan Microsoft Excel. Turbin tipe NACA (jumlah sudu 3) menghasilkan Daya Mekanik Turbin(PT) terbesar sebesar 58,81 watt. Koefisien Daya Mekanik Turbin(Cp) terbesar yang dihasilkan adalah tipe NACA (jumlah sudu 3) yaitu sebesar 0,204. Sedangkan koefisien daya optimum sebesar 0,145 dan efisiensi turbin (ηT) yang optimum diperoleh tipe NACA 3 sebesar 14,9%. Turbin NACA yang menghasilkan kinerja optimal diberi nama RR001. Turbin NACA tipe RR001 dengan 3 sudu lebih optimal dalam menghasilkan Daya Mekanik Turbin(PT) dan koefisien daya (Cp) serta lebih efisien (ηT) bila dibandingkan dengan 2 sudu maupun 4 sudu.
Co-Authors Ahmad Ria Saifuddin Gilang Aditya Gunawan Gunawan Nikho Bayu Kusuma Kelana Puji Saksono Ridwan Rasyid Suherna Suherna