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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) Tedc
Erdiansyah 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 Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Transportation Veterinary

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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 SB. Widia Rezaly Biharu Hayati; Erdiansyah Erdiansyah; Win Hendrawan
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.
Co-Authors Andres Budiono Diki Ismail Permana Kristyadi, Tarsisius SB. Widia Rezaly Biharu Hayati Undang Syarifudin Win Hendrawan Yana aditia gerhana