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All Journal SIGMA EPSILON - Majalah Ilmiah Teknologi Keselamatan Nuklir Teknika: Jurnal Sains dan Teknologi Media Teknika Jurnal Taman Vokasi AL-JAZARI JURNAL ILMIAH TEKNIK MESIN Journal of Physics and Its Applications J-Dinamika: Jurnal Pengabdian Kepada Masyarakat Jurnal Bakti Masyarakat Indonesia Jurnal Teslink : Teknik Sipil dan Lingkungan International Journal of Research in Vocational Studies (IJRVOCAS) Automotive Experiences AKSONA IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Jurnal Teknologi Maritim Cylinder : Jurnal Ilmiah Teknik Mesin
Hadi Sutanto
Program Studi Teknik Mesin, Fakultas Biosains, Teknologi, Dan Inovasi, Universitas Katolik Indonesia Atma Jaya Jakarta
Aerospace Engineering Agriculture, Biological Sciences & Forestry Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Neuroscience Physics Social Sciences Transportation Other

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DESAIN INSTALASI PENGOLAH AIR LIMBAH INDUSTRI MINUMAN TEH DENGAN MENGGUNAKAN SISTEM AEROBIK Oei Tjin-Swan; Hadi Sutanto
Cylinder : Jurnal Ilmiah Teknik Mesin Vol. 1 No. 2 (2014): OKTOBER 2014
Publisher : Department of Mechanical Engineering Atma Jaya Catholic University of Indonesia

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Abstract

Air merupakan kebutuhan mutlak manusia yang ada di planet bumi ini. Berbagai macam kegiatan yang dilakukan oleh manusia memerlukan air, baik untuk kegiatan sehari-hari di rumah tangga, bisnis atau berbagai macam industri. Hasil sampingan dari penggunaan air mengakibatkan air menjadi tercemar, sehingga diperlukan industri pengolahan air limbah (ipal) agar diperoleh air dengan kualitas baku sesuai standar. Makalah ini akan membahas desain ipal yang digunakan untuk mengolah air limbah industri minuman teh dengan menggunakan sistem aerobik. Hasil perancangan menunjukkan bahwa untuk air limbah sebanyak kurang lebih 450 m3 per hari atau 20 m3 per jam diperlukan 2 (dua) unit kolam oksidasi (oxidation ditch). Luaran ipal hasil rancangan menunjukkan bahwa air limbah olahan (effluent) sudah sesuai dengan standar yang dipersyaratkan sebagai air baku.
Desain dan Investigasi Dinamometer 3 Sumbu di Mesin CNC Router untuk Material Polimer dengan metode VDI 2221 Archi Kun Cahyo Utomo; Hadi Sutanto; Marsellinus Bachtiar Wahju; Novi Misgi P. Adi; Taji Harya Prakosa; Dikky Kusuma Wijaya
AL-JAZARI JOURNAL SCIENTIFIC OF MECHANICAL ENGINEERING Volume 9, Issue 1, Mei 2024
Publisher : Universitas Islam Kalimantan Muhammad Arsyad Al Banjari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31602/al-jazari.v9i1.14568

Abstract

Kepuasan pelanggan dapat tercapai dengan kualitas produk yang baik. Sistem pengendalian sangat diperlukan untuk menjamin mutu suatu produk. Metode desain VDI (Verein Deutcher Ingenieure) 2221 digunakan untuk mencari solusi terbaik, optimalisasi penggunaan material, dan optimalisasi teknologi. Tahapan perancangan cover dinamometer menggunakan VDI 2221 adalah klarifikasi tugas, perancangan konseptual, perwujudan konsep, dan perancangan detail. Proses pembuatan, perakitan, pemasangan, dan pengoperasiannya relatif mudah. Yang terpilih adalah varian desain 3 dengan proses 3D printing PLA karena lebih kuat, murah, dan mudah dari varian desain lainnya. Dinamometer menggunakan loadcell sebagai sensor berat dan arduino uno sebagai controller. Beban penyayatan yang terbesar terdapat pada sumbu Z, semakin besar kedalaman pemakanan semakin tinggi beban penyayatan.
Pengaruh Variasi Geometri Sudu Impeler Radial Semi Terbuka Terhadap Efisiensi Mini Pompa Sentrifugal: Pengaruh Variasi Geometri Sudu Impeler Radial Semi Terbuka Terhadap Efisiensi Mini Pompa Sentrifugal Anwar, Zainuri; Hadi Sutanto; Anthon De Fretes; Sandra Octaviani
Jurnal Taman Vokasi Vol 11 No 2 (2023): Vol. 11 No. 2 (2023)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30738/jtvok.v11i2.16258

Abstract

Salah satu yang mempengruhi peningkatan efisiensi pompa adalah geometri sudu impeler. Tujuan dari penelitian ini adalah untuk mendapatkan desain geometri impeler terbaik pada mini pompa sentrifugal. Geometri impeler yang digunakan dalam penelitian ini memiliki tiga variasi yaitu: tipe impeller radial miring, radial melengkung, dan radial airfoil. Sudu impeler didesain selanjutnya dibuat mengunakan mesin 3D print dengan bahan filamen PLA. Motor penggerak pompa yang digunakan adalah dinamo 775 DC 12Volt dengan kecepatan putaran pompa diatur menggunakan potensio pada 2000 rpm, 2150 rpm, 2300 rpm, 2450 rpm, 2600 rpm, dan 2700 rpm. Hasil pengujian menunjukkan bahwa perbedaan geometri sudu impeler mempengarui efesiensi mini pompa sentrifugal. Efisiensi tertinggi terjadi pada tipe impeler radial melengkung dengan nilai efesiensi mencapai 19,35% pada putaran 2700 rpm. Kondisi ini lebih baik daripada tipe impeler lainnya dengan trend kenaikan efesiensi meningkat seiring dengan peningkatan putaran pompa.
MINI SOLAR WATER HEATER SEBAGAI PEMANAS AIR BERKELANJUTAN BAGI YAYASAN ODGJ KEMAH PEDULI SAHABAT KASIH Filian Arbiyani; Christiand; Yeremia Steven Aufey; Julianus Armanda Putra Tarigas; Hadi Sutanto
Jurnal Bakti Masyarakat Indonesia Vol. 8 No. 3 (2025): Jurnal Bakti Masyarakat Indonesia
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/jbmi.v8i3.35534

Abstract

In daily life, the availability of hot water is essential for supporting health, comfort, and various general activities. Hot water is produced by supplying a certain amount of thermal energy to water until it reaches a desired temperature. This energy is typically derived from sources such as gas, oil, or electricity. At the Kemah Peduli Sahabat Kasih Foundation, the availability of hot water is particularly crucial, as the facility serves individuals with mental health disorders. Basic activities such as bathing, and the preparation of food and beverages, inherently require hot water. The operational funding of the facility relies heavily on donations and social contributions. Therefore, the cost of procuring fuel to ensure the continuous supply of hot water becomes a significant concern and represents a recurring expenditure that demands special attention. To alleviate the financial burden on the foundation's management, a mini solar water heater system utilizing solar energy was designed and developed for use at the Kemah Peduli Sahabat Kasih Foundation. The system primarily consists of temperature sensors, a water storage tank, solar heat-absorbing pipes, and other supporting equipment to ensure proper circulation of hot water. The system was installed at the Kemah Peduli Sahabat Kasih Foundation building located in Cisauk, Tangerang Regency, Banten. This initiative is expected to reduce the foundation’s expenses associated with water heating. Moreover, the presence of this system is anticipated to better support the daily activities of the facility’s residents. Ultimately, the developed water heating system may serve as a model for other similar applications requiring cost-effective hot water solutions.
Structural Analysis of Brake Shoe under Static Load Using Al Alloy, Cast Iron, Mg Alloy for Main Components, and Carbon Variants for Brake Linings Dony Eko Prasetyo; Hadi Sutanto; Arka Dwinanda Soewono
Automotive Experiences Vol. 7 No. 3 (2024)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.11207

Abstract

The research is motivated by the issue faced by motorcycle users, namely the wear and tear of brake shoes, which can reduce braking effectiveness and increase the risk of accidents. The main objective of this study is to analyze the structural properties of motorcycle brake shoes with three different materials (aluminum alloy, cast iron, and magnesium alloy) and brake linings made of different carbon variants (alumina-carbon composite, carbon ceramics, and carbon fiber) under static pressures. Additional design aspects including weight and production cost are also evaluated during the material selection process for the motorcycle’s brake shoe and brake lining. The 3D modeling of the brake shoe and lining was done in Solidworks using measurement data from a Coordinate Measuring Machine (CMM). The finite element analysis was performed using ABAQUS software. Considering the results from the finite element analysis, weight, and economic aspects, the study found that aluminum alloy (Al alloy) and carbon composite can be suitable materials for brake shoes and brake lining. The Al alloy brake shoe provides 62.7% weight saving while exhibiting good structural properties under static load and a moderate increase in production cost compared to cast iron. Similarly, brake lining with alumina-carbon composite showed the least deformation under static load while maintaining modest production costs compared to the other carbon variants.
Analysis of Vowel Formants and Frequencies for Cognitive Health Assessment: A Preliminary Study Kevin Kristian; Bryan Santoso; Novelya Indrawan; Nicholas Hardi; Djoko Setyanto; Hadi Sutanto; Yvonne Suzy Handajani; Yuda Turana
AKSONA Vol. 6 No. 2 (2026): JULY 2026
Publisher : Universitas Airlangga

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Abstract

Highlight: Voice parameters did not differ between cognitive impairment groups Combined speech analysis may better assess cognition than voice alone.   ABSTRACT Introduction: Recent studies have shown that, in addition to being cost-effective and non-invasive, voice and speech analysis may play an important role in detecting cognitive impairment, such as dementia. Although numerous studies have investigated this topic, the relationship between voice-related abnormalities and cognitive impairment has not been completely captured. Objective: To investigate the relationship between voice-related abnormalities and cognitive impairment. Methods: A total of 100 participants aged >60 years were selected through purposive sampling. Cognitive function was assessed using the Indonesian version of the Montreal Cognitive Assessment (MoCA-INA), and participants were divided into cognitive impairment and non-cognitive-impairment groups. Acoustic analysis of sustained vowels was conducted using audio analysis software, focusing on formant frequencies, formant centralization ratio, fundamental frequency, and amplitude. Data were analyzed using an independent-samples t-test. Results: The cognitive impairment group demonstrated lower mean values for most formant frequencies. However, no statistically significant differences (p > 0.05) were observed between the groups in formant frequencies, formant centralization ratio, fundamental frequency, or amplitude. Conclusion: No significant association was found between voice-related abnormalities and cognitive impairment. However, subtle variations in voice parameters may still indicate other underlying neurological problems.
Proses Penggantian Superheater Tube Pada Takuma Boiler N-900 R Ar Rasyid Fathon'D; Hadi Sutanto; Tino Hermanto
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 3 No 3 (2024): Desember
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v3i3.173

Abstract

This research aims to provide a detailed guideline for the replacement process of superheater tubes in the Takuma Boiler N-900 R. The superheater tube is a critical component in a boiler that increases the temperature of the steam exiting the boiler to achieve higher temperatures. Superheaters have been utilized since the early 20th century, coinciding with the initial use of steam engines. The research employed direct observation to analyze the causes of failure in the superheater tubes. The primary objective is to present the necessary processes and steps for replacing superheater tubes. The findings indicate that the primary cause of failure in the superheater tubes is overheating, necessitating their replacement. The replacement process involves several stages, including disassembling old superheater tubes, installing new ones, and testing hydrostatic and steam. The results of this replacement process show improved efficiency in the superheater and prevention of further failures in the superheater tubes.
Composition-Dependent Structural and Dynamical Properties of Mixed DPPC/DLPC Bilayers: An Atomistic Molecular Dynamics Study Gregoria Illya; Hadi Sutanto
Journal of Physics and Its Applications Vol 8, No 3 (2026): August 2026
Publisher : Diponegoro University Semarang Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jpa.v8i3.31465

Abstract

Moderate chain-length mismatch in saturated lipid mixtures provides a useful model for understanding how structural perturbations influence membrane behavior. Here, all-atom molecular dynamics simulations were used to investigate DPPC/DLPC bilayers across compositions at 50 °C, focusing on the coupled evolution of structure, dynamics, and hydration. Increasing DLPC content leads to a systematic increase in area per lipid and a reduction in bilayer thickness, indicating weakened packing within the hydrophobic core. These structural changes are accompanied by enhanced interleaflet coupling and decreased acyl-chain ordering. The lateral diffusion behavior is composition-dependent: DLPC mobility increases steadily with concentration, whereas DPPC exhibits a non-monotonic trend, reflecting competing effects of increased free volume and heterogeneous packing. Mean squared displacement analysis in log–log representation reveals persistent subdiffusive dynamics for both lipid species, with diffusion exponents α ≈ 0.30–0.35 across all compositions. This indicates that lipid motion remains governed by transient confinement and spatial heterogeneity, even as overall mobility increases. In parallel, water density profiles show enhanced penetration of water into the bilayer interior with increasing DLPC fraction, driven by packing defects and increased free volume rather than pore formation. These results demonstrate that moderate chain-length mismatch induces a coupled structural and dynamical response that governs membrane transport properties.
Co-Authors Albert Christian Wanandi Alfian Wijaya Alfian Wijaya Anthon de Fretes Anwar, Zainuri Ar Rasyid Fathon'D Archi Kun Cahyo Utomo Arka Dwinanda Soewono Bryan Santoso Christefa Hendy Setianto Christiand Dikky Kusuma Wijaya Djoko Setyanto Dony Eko Prasetyo Edi Mawardi Fahrisa Irdianto Fatahul Arifin Filian Arbiyani Frederikus Wenehenubun Gregoria Illya Hendri - Kusumawijaya Isdaryanto Iskandar Isdaryanto Iskandar Julianus Armanda Putra Tarigas Kevin Kristian Marsellinus Bachtiar Wahju Marten Darmawan Mohd Sofiyan Sulaiman Muhammad Hidayat Nicholas Hardi Novelya Indrawan Novi Misgi P. Adi Oei Oei Tjin-Swan Oei Tjin-Swan Ronald Sukwadi Roziq - Himawan Roziq Himawan Sandra Octaviani B. Widiarto Sheila Tobing Taji Harya Prakosa Tino Hermanto Tobing, Sheila Yeremia Steven Aufey Yuda Turana Yvonne Suzy Handajani Zainuri Anwar