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All Journal Jurnal Teknoin Jurnal Teknik ITS IPTEK Journal of Proceedings Series IPTEK The Journal for Technology and Science Journal of Innovation and Applied Technology Martabe : Jurnal Pengabdian Kepada Masyarakat Jurnal Intake : Jurnal Penelitian Ilmu Teknik dan Terapan Specta Journal of Technology International Journal of Industrial Research and Applied Engineering Jurnal Abdi: Media Pengabdian Kepada Masyarakat Jurnal Kedaymas Prosiding Seminar Nasional Program Pengabdian Masyarakat PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Makara Journal of Technology
Sulistijono Sulistijono
Departemen Teknik Material Dan Metalurgi, Institut Teknologi Sepuluh Nopember
Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Physics Social Sciences Other

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Studi Penambahan Inhibitor Organik Ekstrak Daun Bawang Tiwai (Eleutherine americana Merr.) pada Baja API 5L dalam Lingkungan 3,5% NaCl Triana, Yunita; Rinda, Sari Shaimah; Jatmoko, Awali; Sulistijono, Sulistijono
SPECTA Journal of Technology Vol 2 No 3 (2018): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (720.448 KB) | DOI: 10.35718/specta.v2i3.11

Abstract

One that can be used as an organic inhibitor is bawang tiwai leaves extract. This study used 3.5% NaCl as corrosive media with inhibitor concentration of bawang tiwai leaves extract from 0 ppm to 500 ppm and immersion time from 10 days up to 30 days. The efficiency of inhibition was measured using a weight loss corrosion test, while the corrosion rate was obtained from polarization measurements. The FTIR test results show that the extract contains flavonoid compounds that act as antioxidants and inhibit corrosion. Inhibitory efficiency achieved up to 95.4545% for the addition of 300 ppm inhibitor and 20 days of immersion time. This inhibitory behavior is also supported by polarization measurements where the lowest corrosion rate of 0.00128 mm/year is obtained at the same concentration and immersion time.
Analyze The Effects of Helical Baffles Angles Variation On Shell Side Heat Transfer Coefficient And Pressure Drop of Shell And Tube Heat Exchange Rahmah, Linta Atina; Sa?adiyah, Devy Setiorini; Sulistijono, Sulistijono
SPECTA Journal of Technology Vol 2 No 1 (2018): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/specta.v2i1.94

Abstract

E-201-11 is one of the components of heat exchanger which serves to increase the temperature of distillated crude oil before it going into the furnace. The use of segmental baffles on the heat exchanger causes dead zone. The fouling phenomenon that arises from the deposition of the compound content in the service fluid in dead zone can result in leakage of the shell and tube. It affects the performance of heat exchanger and production efficiency. The use of discontinuous helical baffle on the shell side minimizes fouling. Research on the variation of helical baffle angle by using Bell-Delaware method resulted in performance value of heat transfer coefficient and pressure drop on the shell side. Fluid flow behavior on the shell side with helical baffle was analyzed by Computational Fluid Dynamics (CFD). The fluid flow velocity is a factor that affects the value of heat transfer coefficient and pressure drop. Heat exchanger with an angle of 10º have fluid flow velocity of 0,893m/s resulting in the highest heat transfer coefficient and pressure drop value compared to angles of 15º and 20º with values of 585.725W/m²K and 13642.395Pa. The heat exchanger with helical baffle at 10° helix angle presents the best performance among the others variant helical baffles
Design of Demodulation Circuit And Arduino Uno Microcontroller Syncronization For Capacitance Sensor Menasita, Menasita; Mirnawati, Mirnawati; Sulistijono, Sulistijono
SPECTA Journal of Technology Vol 3 No 1 (2019): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/specta.v3i1.114

Abstract

An AC signal is produced by oscillator or a similar circuit that includes demodulation. In addition to thedemodulation circuit, there is also need interface circuit which include signal conditioning, signal processing anddata acquisition. So that, the frequency can be read digitally. The purpose of this research was to createdemodulation circuit in form of colpitts-crystal oscillator and microcontroller. This research carried out severalstage. There are making colpitts-crystal oscillator, microcontroller synchronization, data retrieval and processingoutput. The DC voltage variations are 3.2 V, 9 V and 15.9 V and capacitor variations are 470 pF, 4.7 nF and 33nF. Output data in form of frequencies measured by using oscilloscope. Futhermore, the data is tested for accuracyand precision. From the test result using 470 pF, 4.7 nF and 33 nF capacitors when given 3.2 V input voltage, theprecision values were 91.35%, 93.06% and 96.17% and the accuracy value were 97.72%, 97.96%, and 98.17%.For 9 V input voltage, the precision values were 99.82%, 97.67% and 97.52% and the accuracy value were 99%,98.90%, and 98.92%. Whereas 15.9 V input voltage, the precision values were 93.43%, 96.92% and 93.66% andthe accuracy value were 98.08%, 98.75%, and 97.60%. From these data, it can be concluded that a good voltagevalue used in this ciecuit is 9 V with 470 pF capacitor where the precision value was 99.82% and the accuracyvalue was 99%.
Effect of Heat Input with Current Variation on Weld Overlay GTAW Method with ERNi-CI and ERNiFe-CI Fillers on Mechanical Properties and Micro Structure of Main Cap Product Laisa, Muhammad Ikbal; Sulistijono, Sulistijono; Awali, Jatmoko
IPTEK Journal of Proceedings Series No 4 (2018): The 3rd International Conference On Materials and Metallurgical Engineering and Technol
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (831.861 KB) | DOI: 10.12962/j23546026.y2018i4.3842

Abstract

Weld overlay is one of veneering method that do by welding on the base metal, so there is wear resistant, additional layer and corrosion resistant. Vibration load that work continue on engine block causing worn out on the components that be in the engine block, one of which occurs on both sides of the main cap that directly intersect to the engine block, however it needed an appropriate repair method that is weld overlay method that giving additional layer and wear resistant. This research is using filler ERNi-CI dan ERNiFe-CI on weld overlay method GTAW with current variation on main cap that made from nodular cast iron. Trials that did is conducted metallography and hardeness. The observation result of metallography show that micro structure in HAZ area and base metal contain more ferrite on the lower current. The more heat input however the more it decreasing hardeness value on weld metal and fusion line. This is caused by the more heat input, however cooling that happens become slow. The hardeness value of welding filler ERNiFe-CI is more high than the hardeness value of welding filler ERNi-CI effect of influence the numbers of nickel composition on the filler.
Effect of Volume Fraction Filler on Sound Insulation in Oil Palm Fronds Fiber Composite Polyester Matrix Sidiq, Firman; Sulistijono, Sulistijono; Ismail, Ika
IPTEK Journal of Proceedings Series No 4 (2018): The 3rd International Conference On Materials and Metallurgical Engineering and Technol
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2018i4.3841

Abstract

In this study, the effect of adding palm fiber rods to the polyester matrix for sound insulation purposes was investigated. The type of fiber used is short fibers with random orientation with the percentage difference in the amount of fiber in the composite as a comparison. Testing loss of voice transmission using impedance tube method is done to know the ability of material to reduce or prevent sound. The data obtained from the TL test results were analyzed and the STC (sound transmission class) values were calculated on each sample. The best results obtained are in the first and second samples with the percentage of fiber 0% and fiber 30%. The calculated results of the STC values in samples one and two each have 32.1 dB and 31.6 dB which indicates sufficient ability to defeat the loud noise. Based on these results, a composite with a 30% fiber content can be used as a sound insulation material and can reduce waste of palm oil that is underutilized.
Study of Organic Substance (Myrmecodia pendans) Extraction Using Soxhletation Method as an Organic Inhibitor Rohmannudin, Tubagus Noor; Sulistijono, Sulistijono; Adiyaksa, Muhammad; Chusururi, Mochamad Alvan Mifta
IPTEK Journal of Proceedings Series No 4 (2018): The 3rd International Conference On Materials and Metallurgical Engineering and Technol
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2018i4.3848

Abstract

Extract of natural substance is currently being developed as an organic inhibitor. Organic inhibitor can be used to inhibit corrosion rate of metallic material especially steel. The purpose of this study is to analyze the effectiveness of soxhletation extraction methods and the quality of inhibitor of Sarang Semut (Myrmecodia pendans) extract. The variations implemented in this research were the composition of the solvent-material and the content comparison of flavonoid compounds.  The results of Sarang Semut (Myrmecodia pendans) extract inhibitor using soxhletation extraction method was observed qualitatively and quantitatively This research used soxhletation extraction method, simplicia Sarang Semut (Myrmecodia pendans) powder as the organic substance, and a mixture of acetone and distilled water as the solvent. Ratio variation of the solvent-substance composition used are 1:10, 1:15, and 1:20. Tests used in this study were Extract Parameters, FTIR, TLC and UV-Vis Spectrophotometry and weight loss. The highest yield was shown when using 1:10 ratio which was 13.943%, the total ash content and the lowest extracted water content shown at a ratio of 1:10 with amount of 4.26% and 4.2483%. FTIR test results indicated functional groups of flavonoids compounds and TLC test showed positive results of Flavonoid compounds which were characterized by blackish discoloration. The highest percentage of flavonoid compounds of 0.22025% found at the 1:10 ratio. The highest efficiency inhibition happened when weight loss testing showed 500ppm with the result of 84.3%.
Phase Transformation on Interface between NiCoCrAlY Bond Coat and Substrate and Study of Thermal Barrier Coating as High Temperature Material Purwaningsih, H; Noerochim, L.; Fajarain, R.; Hakim, J.A.; Sulistijono, Sulistijono
IPTEK The Journal for Technology and Science Vol 21, No 4 (2010)
Publisher : IPTEK, LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20882033.v21i4.89

Abstract

Thermal Barrier Coating material consists of Yttria stabilized zirconia (YSZ) as a top coat and bond coat NiCoCrAlY. It is used to protect NiCoCrAlY super alloys for high temperature applications due to its corrosion resistant properties and resistance to thermal fatigue. In the present study, top coat and bond coat were deposited on the substrate using plasma spraying process, followed by thermal fatigue treatment, by heating up to 900 oC for 5 hours and cooling down to 25 oC for 15 minutes, this process called one cycle. Thermal fatigue was conducted until the material failure. Electron microscope was used to analysis microstructure of the sample after thermal fatigue and x-ray diffraction to analysis phase changed on the interface between bond coat and substrate. The result showed that the specimens failed at 42 cycles (210 hours). A new phase identified as Ni3Al was formed.
PELATIHAN OPTIMASI DESAIN GROUNDBED PADA SISTEM SACP UNTUK PIPA BAJA DI TANAH KAWASAN ITS SEBAGAI PENINGKATAN KOMPETENSI GURU DAN SISWA SEKOLAH ALAM INSAN MULIA SURABAYA Rohmannudin, Tubagus N; Sulistijono, Sulistijono; Pambudi, M Rizal
Jurnal ABDI: Media Pengabdian Kepada Masyarakat Vol 3, No 1 (2017)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/ja.v3n1.p36-40

Abstract

Groundbed adalah anoda yang dibungkus dengan backfill sebagai salah satu variabel di dalam sistem proteksi katodik di dalam tanah. Salah satu hal yang harus diperhatikan dalam teknologi groundbed adalah komposisi penyusun backfill. Backfill berfungsi sebagai penjaga permukaan anoda supaya selalu tetap basah. Hal ini ditujukan untuk memudahkan aliran arus proteksi dari anoda ke katoda melalui media tanah. Selain itu, dimensi dan perbandingan berat antara anoda dan backfill di dalam groundbed juga mempengaruhi kinerja dari grounbed. Kenyataan di lapangan seringkali terjadi kesulitan dalam pembuatan dan instalasi groundbed sehingga banyak dijumpai kesalahan-kesalahan yang mengakibatkan groundbed tidak bekerja secara maksimal. Oleh sebab itu optimasi pembuatan grounbed dirancang untuk meningkatkan kemampuan dan kompetensi dalam teknologi groundbed. Sekolah Alam Insan Mulia merupakan salah satu SMA di Surabaya yang dijadikan objek pengembangan desain grounbed. Hal ini ditunjukkan dengan antusiasnya para guru dan Siswa Sekolah Alam Insan Mulia (SAIM) ketika tim pengabdian masyarakat menawarkan program pelatihan ini. Oleh sebab itu Teknik Material dan Metalurgi FTI-ITS sebagai Institusi Perguruan Tinggi tergerak untuk melakukan kegiatan pengabdian masyarakat dengan melaksanakan Pelatihan Teknologi Groundbed pada Sistem SACP (Sacrifacial Anode Cathodic Protection) sebagai Peningkatan Kompetensi Sekolah Menengah Tingkat Atas/ Kejuruan/ Sederajat. Pelatihan ini diadakan di Teknik Material dan Metalurgi FTI-ITS. Metode Pelatihan yang digunakan adalah presentasi materi oleh Tim Pengabdi yang dilanjutkan dengan eksperimen di Laboratorium. Hasil pelatihan ini menunjukkan adanya peningkatan wawasan dan pemahanan Guru dan Siswa SAIM yang dapat dilihat dari hasil uji tulis di akhir program.
Study of Using Mixture of Bintaro and Coconut Shell Charcoal Powder as Pack Carburizing Media on ST 41 Steel Ridhotullah, Aji; Ashari, Rahmat; Sulistijono, Sulistijono; Andiana, Rocky; Rizky, Yoel
IPTEK Journal of Proceedings Series No 4 (2018): The 3rd International Conference On Materials and Metallurgical Engineering and Technol
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2018i4.3837

Abstract

Pack carburizing is one method of adding carbon into the steel surface. This method is done to improve the mechanical properties of steel so as to reduce the risk of material failure due to static and dynamic load. It has been done in this research about pack carburizing with mixed bintaro charcoal media with coconut shell on ST 41 steel. Carburizing method is done by heating steel which is given a mixture of charcoal at 900 celsius temperature with variation of holding time (1h, 1.5h, 2h) And variation of the charcoal mix ratio with BaCO3 (90: 10, 85: 15, 80: 20). Conducted testing of microstructure, jominy, and the composition so it is known that the mixture of bintaro charcoal and coconut shell quite effectively used as a media pack carburizing. It can be seen that the hardness value of carbon steel has increased with the highest value of 65 HRC, metallographic test results showed good carburizing coating with the best thickness value of 30.9 µm, in jominy testing showed the low hardness carbon steel ability increased with the highest distance from the specimen quench-ends about ¾ inch and on the compositional test results showed an increase in carbon content in steel more than 200%.
PENGARUH KONDISI TANAH ASAM DAN CACAT GORES BERBENTUK PERSEGI PANJANG PADA LAPIS LINDUNG TERHADAP KEBUTUHAN ARUS PROTEKSI SISTEM IMPRESSED CURRENT CATHODIC PROTECTION (ICCP) DENGAN MENGGUNAKAN BAJA AISI 1045 Tubagus Noor Rohmannudin; Sulistijono Sulistijono; Faris Putra Ardiansyah
Teknoin Vol. 21 No. 1 (2015)
Publisher : Faculty of Industrial Technology Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/.v21i1.3696

Abstract

Corrosion is degradation of the metal due to an oxidation reaction between the metal with many substances that exist in the environment around them and form undesirable compounds. Corrosion can not be prevented, but still can be controlled its speed. One of the corrosion control process in a material can be used a  coating and cathodic protection by providing a forced flow. At this time the research conducted will learn about the effect of the rectangular scratch defect and the acid soil pH to the needs of current protection in the impressed current cathodic protection system (ICCP). The variation of given scratch is rectangular with each area of 10 mm2, 50 mm2, 100 mm2, 150 mm2, 250 mm2 and 500 mm2. While the differences in soil pH use is pH 3, pH 5, and pH 7. Then there is also a specimen without scratch and without layers of protection that is used as a comparison. In the ICCP system installation, AISI 1045 steel is used as the cathode and graphite as the anode. The system used a rectifier that is useful for current rectifier. The flow of the ICCP protection is set such that the value of the potential difference can reach -850 mV against the reference electrode Cu / CuSO4. Measurement of the current protection on the ICCP system performed during the 7 days with daily data retrieval. After obtained the measurement of the current protection value, showed that the greatest current protection value with 500 mm2 defect area in acidic soils (pH 3) that is equal to 1.696 mA. While the smallest current protection in area of 10 mm2 with normal soil that is equal to 0.032 mA. The influence of these two variables were calculated using multiple regression statistical analysis so as to get the equation Y = 0,11 + 0,008 X1 + 0,0004 X2. Where the value of X1 as soil pH conditions, X2 as scratch defect, and Y as current protection.
Co-Authors Adiyaksa, Muhammad Agung Budi Kurniawan Agung Purniawan Andiana, Rocky Andini, Risa Ashari, Rahmat Asih, Wentika Putri Kusuma Awali, Jatmoko Azmi Mahiri Bintang Ayu Nuraeni Chusururi, Mochamad Alvan Mifta Diah Susanti Diego Pramanta Harvianto Fakhreza Abdul Faris Hizrian Maulana Faris Putra Ardiansyah Faris Putra Ardiansyah H Purwaningsih Handis Zuniandra Haniffudin Nurdiansyah Haniffudin Nurdiansyah Haniffudin Nurdiansyah Hariyati P Hariyati Purwaningsih Irbabulluba Ismail, Ika J.A. Hakim Jatmoko, Awali Jr., Teodoro A. Amatosa, Kikin Hermanto L. Noerochim Laisa, Muhammad Ikbal Laksono, Andromeda Dwi Lukman Noerochim M Rizal Pambudi M. Rizal Pambudi Mas Irfan Purbawanto Hidayat Mavindra Ramadhani Mega Ulimaz Menasita Mayantasari Menasita Menasita Mirnawati Mirnawati Mirnawati Mirnawati Moamar Al Qathafi Moh. Farid Naufal Gati Furqon Pambudi, M Rizal R. Fajarain Rahmah, Linta Atina Ridhotullah, Aji Rinda, Sari Shaimah Rizky, Yoel Rohmannudin, Tubagus N Rohmannudin, Tubagus Noor Sa?adiyah, Devy Setiorini Sidiq, Firman Sitorus, Hilda Pebrianti Octaviana Trendy Leo Pratama Tubagus N Rohmannudin Tubagus Noor R Tubagus Noor Rohmanuddin Vania Mitha Pratiwi Yunita Triana, Yunita Zaid Sulaiman Zaid Sulaiman