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All Journal JURNAL ISTEK Jurnal Teknik Mesin Indonesia JTTM: Jurnal Terapan Teknik Mesin Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse) Journal of Innovation Research and Knowledge Tedc JURNAL KEBANGSAAN REPUBLIK INDONESIA
Erdiansyah Erdiansyah
Teknik Mesin Universitas Kebangsaan
Religion Aerospace Engineering Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Transportation Veterinary Other

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Simulasi atom mekanika retakan material alumunium dengan pembebanan singkat Andres Budiono; Erdiansyah Erdiansyah
Jurnal Teknik Mesin Indonesia Vol 16 No 2 (2021): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36289/jtmi.v16i2.236

Abstract

Penelitian ini bertujuan untuk mem-validasi hasil eksperimen pada uji ketangguhan retak material paduan aluminium di bawah pembebanan dinamik dengan simulasi atom. Model retakan yang digunakan adalah material Alumunium dengan orientasi atom [111], [110], dan [112] dengan jumlah atom 17.402 dan kondisi batas periodik untuk mempresentasikan kondisi regangan bidang. Hasil yang diperoleh menunjukkan beberapa dislokasi yang dipancarkan dari ujung retak, nukleasi dan pertumbuhan lubang kecil (micro void) terjadi di depan ujung retak. Lubang kecil dimulai dari inti dislokasi saat beban dijaga konstan yang tidak pernah bersatu dengan retak utama karena jarak antara lubang kecil dan celah utama terlalu jauh secara atom dan pertumbuhan lubang menjadi stabil. Validasi secara kualitatif dapat diberikan oleh simulasi atom ini.
PENILAIAN RESIKO TEKNOIOGI INFORMASI & KEAMANAN SISTEM INFORMASI DENGAN MENGGUNAKAN FRAMEWORK COBIT 4.1 DAN GUIDELINES NIST SP 800-30 ( Studi Kasus : Rumah Sakit Umum Dr Slamet Garut ) Yana aditia gerhana; Erdiansyah Erdiansyah Erdiansyah; Undang Syarifudin
JURNAL ISTEK Vol 5, No 1-2 (2011): ISTEK
Publisher : JURNAL ISTEK

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Abstract

Every organization have a goal. In the digital era, organization use automated information technology to process their information for better support for their goals, and risk management plays and important role to protect information assets of organization and for that purpose can be accomplished. An effective risk management process is an important component of the success of information technology security program. The principle objectives of an organization’s risk management should be protect organization and the ability to perform their purpose is not to protect information technology assets only. For this risk management process should not be treated purely as a function but the technique is the basis of the management functions of the organization.
ANALISA RASIO KERUGIAN ALIRAN FLUIDA PADA ELBOW PVC DENGAN VARIASI SPASING DAN MODE ALIRAN MENGGUNAKAN COMPUTATIONAL FLUID DYNAMICS Erdiansyah .
Jurnal TEDC Vol 15 No 3 (2021): JURNAL TEDC
Publisher : UPPM Politeknik TEDC Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (424.431 KB)

Abstract

Penggunaan pipa PVC dalam kehidupan sehari-hari untuk memenuhi kebutuhan air bersih telah menjadi kebutuhan yang tidak bisa diabaikan. Selain karena kemudahan dalam instalasi, pipa PVC juga dikenal kuat dan mempunyai daya tahan di lingkungan indoor dan outdoor. Walau demikian pipa PVC mempunyai batas kekuatan akan tekanan yang bekerja terutama dalam varian elbow PVC. Dalam tulisan ini penulis akan mencoba analisa perbandingan (rasio) kerugian aliran air perhitungan manual pada elbow dengan perhitungan menggunakan Computational Fluid Dynamics dengan variasi spasing mesh dan mode perhitungan. Kata kunci: pipa pvc, elbow, software, meshing
TINJAUAN PRODUKSI HIDROGEN DAN OPTIMASI FUEL CELL DALAM HYDRO-POWER PLANT Erdiansyah .
Jurnal TEDC Vol 15 No 1 (2021): JURNAL TEDC
Publisher : UPPM Politeknik TEDC Bandung

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Abstract

Kebutuhan Hidrogen sebagai solusi dari Sistem Energi Baru dan Terbarukan dari tahun ke tahun semakin meningkat. Indonesia yang berada di daerah katulistiwa dan sebagian besar wilayahnya berupa kepulauan mempunyai potensi yang sangat besar dalam menghasilkan hidrogen. Menjadi tantangan bagaimana kita dapat memanfaatkan hal tersebut dengan salah satu cara memproduksi hidrogen yang di integrasikan dengan pembangkit listrik tenaga air (Hydro Power) dengan varian teknologi elektrolisis yang tersedia. Hidrogen yang diproduksi oleh hydro-power dapat langsung digunakan dalam sistem pembangkit Fuel Cell, sehingga dapat menghasilkan listrik lebih besar. Penelitian dan pengembangan prototype jenis-jenis fuel cell sangat diperlukan untuk meningkatkan daya saing kita sebagai bangsa. Pemanfaatan sensor dan teknologi informasi dalam meningkatkan optimalisasi kerja fuel cell menjadi kebutuhan dalam era revolusi industri 4.0. Kata kunci: hidrogen, elektrolisis, hydro-power, fuel cell, sensor
Solar energy utilization in desalination power plan Erdiansyah; Kristyadi Tarsisius; Diki Ismail Permana
JTTM : Jurnal Terapan Teknik Mesin Vol 4 No 1 (2023): JTTM: Jurnal Terapan Teknik Mesin
Publisher : Teknik Mesin - Sekolah Tinggi Teknologi Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/jttm.v4i1.527

Abstract

A steam power plant (PLTU) uses demin water to generate 3x350 MW of electrical energy. Reverse Osmosis Desalination system is used to treat the 190 m3/hour of desalinated water that is produced from seawater. Solar energy will replace the 225.41 kW of electrical energy required for the RO desalination pump in order to lessen pollution and the greenhouse effect caused by PLTU. The PLTU is situated in Pelabuhan Ratu Sukabumi, West Java. This region has a solar radiation potential of 3.189 kWp/day/m2 and a deployment space for PV modules of 6,167 m2, divided into two zones: the ground and the roof. The needs analysis is carried out by utilizing software simulations that estimate the power requirements of desalination pumps and the potential of electrical energy from solar radiation based on land availability. According to the modeling findings, PLTS can produce 1024 MWh/year of electrical energy with 1,458 pieces of 450 Wp PV modules and 5 units of 120 kW inverters.
Morphological Characterization and Optical Properties of CIGS/TiO2 Thin Films Using Sputtering Technique Hayati, SB. Widia Rezaly Biharu; Erdiansyah, Erdiansyah; Hendrawan, Win
Journal of Ocean, Mechanical and Aerospace -science and engineering- Vol 68 No 3 (2024): Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Publisher : International Society of Ocean, Mechanical and Aerospace -scientists and engineers- (ISOMAse)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36842/jomase.v68i3.374

Abstract

Solar energy as a renewable energy source, is currently an important alternative to meet energy needs because of its unlimited amount and environmentally friendly. Almost the entire surface of the earth receives sunlight optimally, so breakthroughs are needed to transform the solar energy into electricity. In the research development process that was to develop advanced materials to support the development of alternative energy. Thin film synthesis was carried out using the Physical Vapor Deposition (PVD) of Direct Current (DC) Sputtering method on Indium Tin Oxide (ITO) substrates using Copper Indium Gallium Selenide (CIGS) and TiO2 with deposition time variations of 30, 45, and 60 minutes. Based on the test results, thin film surface with the largest grain size is 266.75 nm at CIGS/TiO2 45 minutes. This shows that more CIGS and TiO2 atoms are released from the target surface, forming clumps that cover the substrate surface along with the addition of deposition time. The longer the deposition time shows the higher the absorbance value. The highest absorbance value is 4.60873, which was achieved by 60 minutes CIGS/TiO2 sample with wavelength of 271 nm.
PENGARUH DEFLEKTOR DAN DIFFUSOR TERHADAP PERFORMA TURBIN ANGIN SUMBU VERTIKAL DARRIEUS H BLADE DENGAN AIRFOIL NACA 5317 Nurmand Bernard Adrianto; Erdiansyah, Erdiansyah; Alika Putra Demi Laksa
Journal of Innovation Research and Knowledge Vol. 4 No. 7: Desember 2024
Publisher : Bajang Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53625/jirk.v4i7.9072

Abstract

This study analyzes the effect of using a deflector and diffuser on the performance of a vertical axis wind turbine (VAWT) Darrieus H-Blade with NACA 5317 airfoil. The deflector is a flat plate (600 mm x 600 mm), and the diffuser is a semicircle (575.2 mm in diameter), tested with wind speeds varying from 3–5 m/s and a blade pitch angle of 50°. The tests involve SolidWorks simulation and direct testing, focusing on torque, power, power coefficient, rotational speed, and efficiency. Results show that adding the deflector and diffuser increases torque from 1.456 N.m to 1.92 N.m and efficiency from 49.27% to 88.07% at a wind speed of 5 m/s. This combination also extends the optimal TSR range and enhances power output.
RANCANG BANGUN KHASANAH KEKAYAAN LOKAL MELALUI MESIN PENCACAH JERAMI PADI SEBAGAI MEDIA TANAM JAMUR TIRAM suryaman; Erdiansyah; Zakaria, R. Lutfi; Maulana, Syahlan
JURNAL KEBANGSAAN RI Vol. 3 No. 1 (2025): Edisi 5
Publisher : LEMBAGA PUSAT KAJIAN KEBANGSAAN/PUSKAB UKRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31848/jkri.v3i1.4375

Abstract

The availability of sawdust as a growing medium for oyster mushrooms is becoming increasingly limited, thus alternative raw materials are needed. Rice straw, as an abundant agricultural waste, has potential for use, but requires chopping to an ideal size of 2–5 mm. This research designed and built a rice straw chopper with a 1 HP electric motor drive and a pulley-belt transmission system. The research methods included observations of mushroom farmers, literature studies, design planning, technical calculations (torque, power, capacity), prototype fabrication, and performance testing. The test results show that the machine's production capacity reaches 2.78–3.24 kg/hour with efficiency between 94–97% depending on the number of blades. The machine operates stably, produces cuts according to standards, and is easy to operate. These findings provide a practical solution for mushroom farmers in utilizing straw waste as an economically valuable growing medium.
Effect of Deposition Time on CIGS/TiO2 Solar Cell Fabrication Using PVD Sputtering Method Hayati, SB. Widia Rezaly Biharu; Erdiansyah, Erdiansyah
Journal of Ocean, Mechanical and Aerospace -science and engineering- Vol 69 No 3 (2025): Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Publisher : International Society of Ocean, Mechanical and Aerospace -scientists and engineers- (ISOMAse)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36842/jomase.v69i3.569

Abstract

The CIGS (Copper Indium Gallium Selenide) thin film solar cells have been widely studied for a long time and have achieved an important position in the photovoltaic (PV) market. CIGS is one of the most promising materials for thin film solar cell applications. In this study, a thin film synthesis process was carried out on an ITO (Indium Tin Oxide) substrate using CIGS and TiO2 (titanium Dioxide) with deposition time variations of 30. 45 and 60 minutes using the PVD DC (Physical Vapor Deposition Direct Current) Sputtering method. Based on the test results, there was a shift in the diffraction peak along with the addition of the TiO2 layer, which indicated that the crystallization of ITO began to decrease and the TiO2 peak began to appear at deposition times of 45 minutes and 60 minutes. The formation of polycrystalline indicates good crystallization and surface uniformity. The highest layer thickness was obtained at a deposition time of 60 minutes, which was 426 nm, due to the particle agglomeration process on the substrate surface. The larger the particle agglomerates formed, the thicker the layer on the substrate surface. The results of the UV-Vis (Ultraviolet Visible) spectrophotometer test also showed that the overall band gap energy value corresponds to the ideal value for photovoltaic thin films, namely in the range of 1.04 eV to 3.5 eV.
Co-Authors Alika Putra Demi Laksa Andres Budiono Diki Ismail Permana Kristyadi, Tarsisius Maulana, Syahlan Nurmand Bernard Adrianto SB. Widia Rezaly Biharu Hayati Suryaman, Suryaman Undang Syarifudin Win Hendrawan Yana aditia gerhana Zakaria, R. Lutfi