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Dedy Masnur, Dedy
Universitas Riau
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Journal : Proksima

 1 
Analisis Penggunaan Cathodic Protection dengan Metode Sacrificial Anode Sebagai Pengendalian Korosi Pipa Minyak 16 Inci PT. Chevron Pacific Indonesia Simp. Perawang-Minas Area Dedy Masnur; Eko Saputra; Putri Nawangsari
Proksima Vol 1 No 1 (2023): Jurnal ProKsima
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/proksima.1.1.13-17

Abstract

Cathodic protection is a thermodynamic corrosion control method using metal as the cathode. There are two methods of cathodic protection, namely Sacrificial Anode Cathodic Protection (SACP) and Impressed Current Cathodic Protection (ICPP). This study will analyze the use of Cathodic Protection with the Sacrificial Anode method as corrosion control on a 16 inch oil pipe at PT. Chevron Pacific Indonesia. Carbon steel pipe (API 5L Grade B) with cast magnesium anode material. Calculation of anode requirement for corrosion prevention will be compared with actual field data within 10 years. The calculation results show that the number of calculation parameters used affects the results of the anode requirement on an oil pipe with a length of 16 meters, a diameter of 16 inches, anode with a length of 0.648 m, net weight of anode 7.7 Kg, magnesium anode material with an anode output of 10.8 A/m2, anode density 1765 Kg/m3, wear and tear (volume) 2296 x 10-3 m3 A/y, and a life time of 10 years. Theoretical calculations get 6 anode rods while the actual data requires 8 anode rods.
Investigasi Kegagalan Poros Pompa Sentrifugal IP251-U153 pada Unit Recovery Boiler I PT. X Dedy Masnur; Putri Nawangsari; Dea Musyafiroh Akbar
Proksima Vol 1 No 1 (2023): Jurnal ProKsima
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/proksima.1.1.25-28

Abstract

PT. X is one of the industries engaged in the pulp and paper sector which uses centrifugal pumps to move compounds such as liquor, water, and so on. Failure occurred in the operation of the centrifugal pump, namely the fracture of the shaft component which was made of AISI329 stainless steel. This study aims to investigate the failure of the IP251-U153 centrifugal pump shaft and provide recommendations for actions to prevent failure. The stages of analysis carried out were macroscopic analysis of the fracture surface and testing of chemical composition using a Spectral Metal Analyzer. The results of the analysis show that the fracture pattern is brittle intergranular fracture and there is a difference in the percentage chemical composition of the shaft material with the composition of the standard shaft material in the elements Molybdenum (Mo), Manganese (Mn) and Copper (Cu). These elements affect the durability of the shaft. Checking the material composition when accepting a purchase and carrying out a check for alignment on the shaft installation is necessary to avoid failure.
Analisis Kebocoran Boiler Pipe Akibat Korosi pada Recovery Boiler 5 PT. ABC. Ridwan Abdurrahman; Dedy Masnur; Abdul Rahman
Proksima Vol 1 No 1 (2023): Jurnal ProKsima
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/proksima.1.1.29-32

Abstract

Boiler is one component that is widely used in the energy generation industry and reactors. One of the main components of the boiler is the boiler pipe. In field activities, there was a leak in the boiler pipe which experienced corrosion and erosion of the walls of the pipe. This condition results in a decrease in power and capacity in the boiler. The purpose of this practical work is to observe the causes of damage to the boiler pipe, and provide recommendations for prevention due to damage to the boiler pipe. The methods used are: literature study, observation, interviews, and measurement. The results obtained: (1) The calculation results show that the value of the Reynolds number obtained is 16,032,025.86 (Re>4000, turbulent flow). (2) The cause of corrosion on the boiler pipe is due to liquid droplet impingment which is accompanied by an increase in flow velocity and the occurrence of two phases (steam and water) thereby accelerating depletion in the boiler.
Analysis of Corrosion on Flow Line Pipe LR 038 Gathering Station PT. Pertamina Hulu Rokan Zone 1 Lirik Field Masnur, Dedy; Rahmadiza, Duta
Proksima Vol 2 No 2 (2024): Jurnal ProKsima
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Riau

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Abstract

PT. PERTAMINA Hulu Rokan Zone 1 Field Lirik is engaged in upstream activities including exploitation and production, with two districts producing 2,000 barrels per day. An important component in oil production is the pipeline network, which distributes various fluids suchas water, gas, and oil. This study assesses the remaining effective life of the LR 038 pipeline network and provides preventive recommendations to avoid damage to the pipeline network, thus optimizing oil processing operations and maintaining material integrity using direct observation and inspection methods in the field. The results obtained are the remaining pipe life of 19.9 years with a corrosion rate of 0.003 in years. Recommendations for periodic painting and inspection.
An Investigation of Thrust Bearing Temperature Rise in Unit 2 Koto Panjang Hydropower Plant Muttaqien, Muhammad Fadhlurrahman ‘Arif; Patiharauw, Frans Boyce; Masnur, Dedy
Proksima Vol 2 No 1 (2024): Jurnal ProKsima
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/proksima.v2i1.24

Abstract

Turbines and generators are the main components of hydropower plants that are supported by several bearings, one of them is the thrust bearing. Thrust bearing unit 2 experienced a temperature rise that exceeded the alarm limit (77℃). This study aims to investigate the temperature rise and provide a solution. The investigation was conducted by visual observation; collating temperature and oil flow rate data; and reviewing the hydropower design. The results showed that the temperature rise was attributed to air (oil vapor) trapped in the lubricant circulation system. Therefore, the lubricant circulation system was modified by adding a pipe to the stayring as an outlet for trapped lubricant vapor. This measure effectively normalized the thrust-bearing temperature and flow rate.
Co-Authors Abdul Rahman Adri Adri Andi Putra Andri Andri Anggria, Feldy Anita Susilawati Anuar, Kaspul Asrian, Angga Awaludin Martin Azis, Azridjal Buma Gempa Skp, Buma Gempa Dea Musyafiroh Akbar Eko Saputra Erwin Ardiansyah Feblil Huda Gunawan, Gilang Harrianda Hudaya Harrianda Hudaya Herisiswanto Herisiswanto Indra Jun Noturas Irdoni HS Kusuma, Aryandi Latif Kuncoro Wasmi Apris M Dalil Muftil Badri Muttaqien, Muhammad Fadhlurrahman ‘Arif N. Nazaruddin N. Nazaruddin Nazaruddin Nazaruddin Oktary, Dian P.C1, Dedi Rosa Patiharauw, Frans Boyce Pernando Sihite Pernando Sihite, Pernando Putra Cupu, Dedi Rosa Putri Nawangsari Putri Nawangsari Putri Nawangsari Putri Nawangsari, Putri Putri Nawangsari, Putri Nawangsari Rahmadiza, Duta Rahmat Rosandi Rasyad, Abdur Ridwan Abdurrahman Rochman Saefudin Romy Romy Romy Seab Piseth Suyitno Suyitno Syafri Syafri, Syafri Viktor Malau Warman Fatra, Warman Yohanes