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Journal : Journal of Research and Technology

ANALISIS SIFAT MEKANIK KOMPOSIT Al 2075 REINFORCEMENT DENGAN ELECTROLESS ABU DASAR BATUBARA Setiawan, Adhi; Nilasari, Arita Rochma; Ari, M.
Journal of Research and Technology Vol 2, No 2 (2016)
Publisher : Universitas Nahdlatul Ulama Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (131.711 KB) | DOI: 10.5281/zenodo.2581996

Abstract

Aluminium composite 2075 manufacturing required a strenghthener such as bottom ash which has been through the electroless plating process that serves coating the bottom ash and sticks to aluminium casting process. The oxidation of 100oC produce 0,0126 µm Mg thickness oxidation, 200oC produce 0,0146 µm Mg thickness oxidation, and 300oC produces 0,0506 µm Mg thickness oxidation. Mechanical properties were tested by using worn-out test and hardness test based on new material function that will be used to replace existing disc brake material. Harness test showed that castings are using oxidized ash powder with higher temperature and produce resistant material than in low temperature. Casting mixture with oxidized bottom ash 100oC produce specific abrasion of 2,008 x 10-6 mm2/kg, produce of 1,814 x 10-6 mm2/kg for oxidized 200oC, and produce of 1,675 x 10-6 mm2/kg for oxidized 300oC.
ANALISIS POTENSI DAN DAMPAK KEBOCORAN GAS HIDROGEN PADA HYDROGEN PLANT DI INDUSTRI PELUMAS Setiawan, Adhi; Hanifah, Dian Nur; Nugroho, Agung; Dermawan, Denny
Journal of Research and Technology Vol 3, No 2 (2017)
Publisher : Universitas Nahdlatul Ulama Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (402.575 KB) | DOI: 10.5281/zenodo.2581773

Abstract

Increasing the need for pure hydrogen in the industry is growing. One of its roles is in purification of petroleum industry. High purity hydrogen (99.99%) was obtained from methane using the steam methane reforming method in the hydrogen plant unit. Hydrogen is a very dangerous chemical element with its flammable properties. This research is conducted especially on purification system. Quantitative analysis is used to determine the frequency of hydrogen leakage, consequence modeling, and risk estimation that will be generated. The results of the analysis show that the highest frequency occurs in unignited release events. The jet fire scenario produces the longest fire length in the HPU about 27 meters. The jet fire scenario impact produces the farthest secure distance in the case of a leak in the HPU section of 60 meters. The flash fire produces the farthest distance loss in a leakage case in the HPU of 80 meters, and explosion at a radius of 200 meters will have a blast overpressure 7.62 psig with 22% fatality estimation of the population.
KOROSI BAJA KARBON API 5L GRADE B SEBAGAI FLOWLINE PRODUKSI GAS ALAM Setiawan, Adhi; Fajrin, Alfinura; Munir, M. Miftahul; Ari, M.
Journal of Research and Technology Vol 4, No 1 (2018)
Publisher : Universitas Nahdlatul Ulama Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (948.636 KB) | DOI: 10.5281/zenodo.2580434

Abstract

Corrosion that occurs in a gas flowline is a serious problem because it can cause leaks that lead to material loss and environmental pollution. The aims of this research were to analyze the corrosion occurred in gas flowline of carbon steel 5l Grade B and the effect of inhibitor TIC-8002 GCI to the corrosion rate of metal. This research was conducted using SEM-EDX to analyze and produce various types of metals and corrosion crust. Metals corrosion test and the effect of inhibitors on the corrosion rate of metals were carried out by linear polarization methods. The result of SEM-EDX showed that inner pipe surface occurred pitting corrosion caused by dissolved chloride ions in the electrolite that flows in the pipeline. The result of XRD showed that corrosion products of carbon steel were Fe2O3 and FeOOH. The result of linear polarization showed that the corrosion rate of steel about 0.642 mmy without using inhibitor. The addition of an inhibitor can reduce the corrosion rate in carbon steel. The increase in inhibitor concentration from 10 ppm to 50 ppm can reduce the corrosion rate from 0.633 mmy to 0.394 mmy along with an increase in inhibition efficiency from 1.32% to 38.6%.
ANALISIS REMOVAL SCALING SILIKA PADA JALUR RE-INJEKSI BRINE PEMBANGKIT LISTRIK ENERGI PANAS BUMI DENGAN MENGGUNAKAN ASAM FLUORIDA Setiawan, Adhi; Saputro, Deris Eko; Nugroho, Agung
Journal of Research and Technology Vol 3, No 1 (2017)
Publisher : Universitas Nahdlatul Ulama Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (537.228 KB) | DOI: 10.5281/zenodo.2581843

Abstract

Silica scale formation on the brine re-injection lines of geothermal power plants can lead to serious problems because it increased pressure drop and failure of the safety devices. One of the most effective methods to solve the problem is acidification of silica scaling using hydroflouric acid (HF). HF has a unique characteristic that is highly reactive with SiO2, easily obtained in the market and cheap. The use of HF can increase the rate of material corrosion in re-injection lines material. The use of HF should be adjusted to the appropriate concentration so it can dissolve silica scale optimally without shortening its life service. The concentration of HF used in the experiment were 5, 10, and 15% wt. The results showed that the optimum concentration of HF in dissolving silica at 15%. This is due to its ability to dissolve the crust mostly greatest than most other concentration that is equal to 21% of the total dissolved silica. The rate of corrosion on the material re-injection line with a concentration of 15% is equal to 0.647 mm/y and provide about 4.63 years life time of pipe.
PENGARUH TREATMENT ALKALI TERHADAP KARAKTERISTIK FIBER SABUT KELAPA SAWIT DAN PELEPAH PISANG SEBAGAI BAHAN KOMPOSIT POLIMER Setiawan, Adhi; Setiani, Vivin; Hardiyanti, Fitri; Puspitasari, Devina
Journal of Research and Technology Vol 5, No 2 (2019)
Publisher : Universitas Nahdlatul Ulama Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The use of synthetic fibers in the fabrication of polymer composite materials has a negative impact on the environment. Natural fibers such as palm oil waste and banana pseudostem can be an alternative material for synthetic fibers because they are more economical, high specific strength, and environmentally friendly. The alkali treatment needs to be carried out on fibers for removal of lignin, hemicellulose, and impurity so that they can improve interfacial bonding between the fiber and the polymer matrix. The alkali treatment was carried out through fiber immersion in conditions without NaOH, 5% wt NaOH solution, and 10% wt for 24 hours. Fiber before and after alkalization were analyzed using Scanning Electron Microscope (SEM), X-Ray Difraction (XRD), Fourier Transform Infrared (FTIR), and Thermogravimetric  Analysis (TGA) methods. The results showed that alkali treatment was effective in removing the components of lignin, hemicellulose, and impurities in fiber. The result of the SEM was showed that the treated fiber surface has a cleaner surface than treatment without fiber. The alkali treatment process can improve the crystallinity and crystallinity index of the fiber due to amorphous component removal of lignin and hemicellulose. The TGA showed that palm oil fiber with alkali treatment and without alkali treatment a produced weight loss of 88,2% and 98,4% respectively. This showed that the alkali treatment can increase the thermal resistance of the palm oil fiber.
ANALISIS REMOVAL SCALING SILIKA PADA JALUR RE-INJEKSI BRINE PEMBANGKIT LISTRIK ENERGI PANAS BUMI DENGAN MENGGUNAKAN ASAM FLUORIDA Adhi Setiawan; Deris Eko Saputro; Agung Nugroho
Journal of Research and Technology Vol. 3 No. 1 (2017): JRT Volume 3 No 1 Jun 2017
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Silica scale formation on the brine re-injection lines of geothermal power plants can lead to serious problems because it increased pressure drop and failure of the safety devices. One of the most effective methods to solve the problem is acidification of silica scaling using hydroflouric acid (HF). HF has a unique characteristic that is highly reactive with SiO2, easily obtained in the market and cheap. The use of HF can increase the rate of material corrosion in re-injection lines material. The use of HF should be adjusted to the appropriate concentration so it can dissolve silica scale optimally without shortening its life service. The concentration of HF used in the experiment were 5, 10, and 15% wt. The results showed that the optimum concentration of HF in dissolving silica at 15%. This is due to its ability to dissolve the crust mostly greatest than most other concentration that is equal to 21% of the total dissolved silica. The rate of corrosion on the material re-injection line with a concentration of 15% is equal to 0.647 mm/y and provide about 4.63 years life time of pipe.
KOROSI BAJA KARBON API 5L GRADE B SEBAGAI FLOWLINE PRODUKSI GAS ALAM Adhi Setiawan; Alfinura Fajrin; M. Miftahul Munir; M. Ari
Journal of Research and Technology Vol. 4 No. 1 (2018): JRT Volume 4 No 1 Jun 2018
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Corrosion that occurs in a gas flowline is a serious problem because it can cause leaks that lead to material loss and environmental pollution. The aims of this research were to analyze the corrosion occurred in gas flowline of carbon steel 5l Grade B and the effect of inhibitor TIC-8002 GCI to the corrosion rate of metal. This research was conducted using SEM-EDX to analyze and produce various types of metals and corrosion crust. Metals corrosion test and the effect of inhibitors on the corrosion rate of metals were carried out by linear polarization methods. The result of SEM-EDX showed that inner pipe surface occurred pitting corrosion caused by dissolved chloride ions in the electrolite that flows in the pipeline. The result of XRD showed that corrosion products of carbon steel were Fe2O3 and FeOOH. The result of linear polarization showed that the corrosion rate of steel about 0.642 mmy without using inhibitor. The addition of an inhibitor can reduce the corrosion rate in carbon steel. The increase in inhibitor concentration from 10 ppm to 50 ppm can reduce the corrosion rate from 0.633 mmy to 0.394 mmy along with an increase in inhibition efficiency from 1.32% to 38.6%.
ANALISIS POTENSI DAN DAMPAK KEBOCORAN GAS HIDROGEN PADA HYDROGEN PLANT DI INDUSTRI PELUMAS Setiawan, Adhi; Hanifah, Dian Nur; Nugroho, Agung; Dermawan, Denny
Journal of Research and Technology Vol. 3 No. 2 (2017): JRT Volume 3 No 2 Des 2017
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (401.948 KB) | DOI: 10.55732/jrt.v3i2.237

Abstract

The increasing need of industrial pure hydrogen is growing. One of its roles is petroleum industry purification. High purity hydrogen (99.99%) was obtained from methane using Steam Methane Reforming Method in hydrogen plant unit. Hydrogen is a very dangerous chemical element with its flammable characteristic. This research was conducted especially on purification system. Quantitative analysis was used to determine hydrogen leakage frequency, consequence modeling, and risk estimation that would be risen. The analysis results showed that the highest frequency occured in unignited release events. Jet fire scenario produced the longest fire length in HPU for about 27 meters. Jet fire scenario impact produced the farthest secure distance in case of a leakage in HPU section of 60 meters. Flash fire produced the farthest distance loss in a leakage case in HPU of 80 meters, and explosion at 200 meters radius would will have a blast overpressure 7.62 psig with 22% fatality estimation of the population. Keywords: Hydrogen Purification Unit, Hydrogen, Consequence Modeling, Risk.
PENGARUH TREATMENT ALKALI TERHADAP KARAKTERISTIK FIBER SABUT KELAPA SAWIT DAN PELEPAH PISANG SEBAGAI BAHAN KOMPOSIT POLIMER Setiawan, Adhi; Vivin Setiani; Fitri Hardiyanti; Devina Puspitasari
Journal of Research and Technology Vol. 5 No. 2 (2019): JRT Volume 5 No 2 Des 2019
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v5i2.321

Abstract

The use of synthetic fibers in the fabrication of polymer composite materials has a negative impact on the environment. Natural fibers such as palm oil waste and banana pseudostem can be an alternative material for synthetic fibers because they are more economical, high specific strength, and environmentally friendly. The alkali treatment needs to be carried out on fibers for removal of lignin, hemicellulose, and impurity so that they can improve interfacial bonding between the fiber and the polymer matrix. The alkali treatment was carried out through fiber immersion in conditions without NaOH, 5% wt NaOH solution, and 10% wt for 24 hours. Fiber before and after alkalization were analyzed using Scanning Electron Microscope (SEM), X-Ray Difraction (XRD), Fourier Transform Infrared (FTIR), and Thermogravimetric Analysis (TGA) methods. The results showed that alkali treatment was effective in removing the components of lignin, hemicellulose, and impurities in fiber. The result of the SEM showed that the treated fiber surface had a cleaner surface than treatment without fiber. The alkalitreatment process can improve the crystallinity and crystallinity index of the fiber due to amorphous component removal of lignin and hemicellulose. The TGA result of palm oil fiber with alkali treatment and without alkali treatment produced weight loss of 88,2% and 98,4% respectively. This showed that the alkali treatment can increase the thermal resistance of the palm oil fiber.
Co-Authors Achmad Fatoni Agung Nugroho Agung Nugroho Agung Nugroho Agung Nugroho Agung Nugroho Ahmad Erlan Afiuddin Aisyah Nur Rahmadania Alfinura Fajrin Amilia Kristina Dewi Ananda Augista Firtsanti Anggara Trisna Nugraha Anggraini, Febby Dwi Melanny Ari, M. Arianingtyas, Nadya Ayu Arita Rochma Nilasari Azzahro, Annisa Basyiruddin, Fariz Bawafi, Muhammad Iqbal Ali Cahyono, Luqman Catur Rini Widyastuti, Catur Rini Chelvin Sugiarto Citra Eripramita Yunus Denny Dermawan Denny Dermawan Deris Eko Saputro Devina Puspitasari Devina Puspitasari Dewi, Tanti Utami Utami Dhani, Mey Rohma Dian Nur Hanifah Dika R. Widiana Dwi Rasy Mujiyanti Dzulfikar, Muhammad Hanif Endang Pudji Purwanti Fajrin, Alfinura Falenia Firdatul Jannah Fariha, Chandra Nur Firnandi, Rahmad Fitri Hardiyanti Gunawan, Karina Larasati Hanastasia, Rizka Lutfita Hanifah, Dian Nur Hanifah, Dian Nur Hanoni Hanun, Jihan Nabillah Inayatul Wulandari Indri Santiasih Lintang Indra Liuqil Mahfudz Luqman Cahyono M. Ari M. Miftahul Munir Maulidya, Risya Dwi Mirna Apriani Mochamad Yusuf Santoso Mochammad Choirul Rizal Muhamad Ari Muhamad Ari Muhammad Asrul Nizam Muhammad Luqman Ashari Mukhlis Mukhlis Munir, M. Miftahul Nilasari, Arita Rochma Nora Amelia Novitrie Novi Eka Mayangsari Novitrie, Nora Amelia Nugroho, Agung Nurhidayati, Dyah Isna Pawitra, Tiane Prianto, Haekal Irfan Titan Prima Astuti Handayani Priyambodo N. A. Nugroho Puguh Pribadhi Puspitasari, Devina Putri, Desita Ramadona Syah Qurrotul Aini Rahmawati, Devi Ayu Rizki Medy Prasetyo Rizki Noviana Damayanti Saputro, Deris Eko Satriavi, Aulia Diva Setiani, Vivin Siti Muthi’ah Tanti Utami Dewi Tarikh Azis Ramadani Tri Bagus Setiawan Utomo, Agung Prasetyo Vira Fadilah Qurani Vivin Setiani Vivin Setiani Widiyastuti Widiyastuti Widiyastuti Widiyastuti Winardi, Sugeng Wiwik Dwi Pratiwi