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All Journal JST ( Jurnal Sains Terapan ) JTT (Jurnal Teknologi Terpadu) Turbo : Jurnal Program Studi Teknik Mesin MATRIK : Jurnal Manajemen, Teknik Informatika, dan Rekayasa Komputer INTEK: Jurnal Penelitian Sainstek : Jurnal Sains dan Teknologi BERDAYA: Jurnal Pendidikan dan Pengabdian Kepada Masyarakat Jurnal Pengabdian dan Edukasi Sekolah (Jubaedah) Jurnal Abdimas Bina Bangsa Asean Journal of Science and Engineering (AJSE) Jurnal Teknik Mesin Sinergi Jutek JAGO Jurnal Pengabdian Ahmad Yani Jurnal Pengabdian Kreativitas Pendidikan Mahakam (JPKPM) Jurnal Pendidikan dan Pengabdian Masyarakat Jurnal Taguchi : Jurnal Ilmiah Teknik dan Manajemen Industri International Journal of Multidisciplinary Approach Research and Science Journal of Multidisciplinary Research and Innovation (JMRI) AutoMech : Jurnal Teknik Mesin

Ahmad Yani

Sekolah Tinggi Teknologi Industri Bontang

Author-ID : 2581827

Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Transportation Veterinary Other

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Effect of variations in blade width on vertical shaft kinetic water turbine power Yani, Ahmad; Ratnawati, Ratnawati; Anoi, Yano Hurung; Patabang, Yonatan; Risaldi, Risaldi; Zulkifli, Zulkifli
International Journal of Multidisciplinary Approach Research and Science Том 1 № 03 (2023): International Journal of Multidisciplinary Approach Research and Science
Publisher : PT. Riset Press International

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59653/ijmars.v1i03.224

Various studies and observations have been carried out to produce a turbine design that suits the needs and the relatively low flow speed is a challenge that currently still requires further research. ThereforeThe aim of this research is to determine the effect of variations in the width of the bowl blade on the vertical shaft kinetic water turbine power.The research method used is an experimental method with an experimental design on a laboratory scale. Tests were carried out on three variations of blade width, from the results of the study it can be concluded that increasing the water flow rate, turbine rotation, and the ratio of tangential speed to the turbine blade width can increase the kinetic water turbine power. In this study, variations in blade width were 10 cm, 11 cm, and 12 cm. Increasing turbine blade sheets increased turbine power due to the additional mass of the flow hitting the turbine blades thereby affecting the kinetic water turbine power. Analysis of the water flow rate shows that the maximum turbine power occurs at a blade width of 12 cm and a discharge of 0.017 m3/second with a turbine power value of 25.455 Watt. Analysis of turbine rotation, Maximum turbine power occurs at a blade width of 12 cm and rotation of 80 rpm with a turbine power value of 23,864 Watts. Meanwhile, analysis of the tangential speed ratio shows that the maximum turbine power occurs at a blade width of 12 cm and at a tangential speed ratio of 0.5 rad/s2 with a turbine power value of 23,864 Watts. Keywords: Blade width, power, kinetic turbine, vertical shaft.

Rancang Bangun dan Pengujian Instalasi Pompa Air Type Centrifugal Untuk Alat Praktikum Mesin Fluida STTI Bontang Yani, Ahmad; Istiqomah, Nurul; Armiyanto, Eko; Raharjo, Dwi; Hariyadi, Hanif
AutoMech : Jurnal Teknik Mesin Vol 2, No 02 (2022): Nopember
Publisher : Universitas Muhammadiyah Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24269/jtm.v2i02.5798

Pompa sentrifugal adalah suatu alat atau mesin untuk memindahkan cairan dari satu tempat ke tempat lain dengan menggunakan gaya sentrifugal yang diakibatkan gerak impeller dan sekaligus mengubah tenaga kinetik fluida menjadi tenaga tekan pada cairan yang dipindahkan dan berlangsung secara terus menerus. Penelitian ini bertujuan untuk menghasilkan produk berupa prototype instalasi pompa sentrifugal yang dapat digunakan untuk alat praktikum mahasiswa STTI Bontang sehingga dapat meningkatkan pengetahuan dan kemampuan berpikir ilmiah mahasiswa dalam pembelajaran matakulaih mesin-mesin fluida. Metode yang digunakan pada penelitian ini yaitu metode eksperimental dengan merangcang alat, membuat alat dan melakukan pengujian langsung terhadap alat yang telah dibuat. Hasil rancang bangun instalasi pompa air type centrifugal bekerja secara normal. Hasil pengujian tersebut didapatkan nilai head dikoreksi (H) sebesar 10,4563 m. sedangkan nilai debit (Q) sebesar 5,320621 m3/jam, untuk nilai daya poros pompa (PS) sebesar 0,4527 hp, nilai daya hidrolis (PH) sebesar 0.2019 hp, dan nilai effisiensi pompa (ηp) sebesar 42,90%.

Studi Eksperimental Variasi Tekanan Keluar (Discharger) Terhadap Kinerja Pompa Air Sentrifugal: Pada Alat Praktikum Mesin Fluida STTI Bontang Yani, Ahmad; Istiqomah, Nurul; Junaini, Junaini; Hariyadi, Hanif; Raharjo, Dwi
AutoMech : Jurnal Teknik Mesin Vol 2, No 02 (2022): Nopember
Publisher : Universitas Muhammadiyah Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24269/jtm.v2i02.5992

RANCANG BANGUN MESIN PENGIRIS SINGKONG DENGAN SISTEM KEAMANAN MENGGUNAKAN SENSOR INFRARED Tumaggor, Daniel; Yani, Ahmad; Siregar, Lisa A.
JMRI Journal of Multidisciplinary Research and Innovation Vol. 2 No. 3 (2024): December
Publisher : Lembaga Riset dan Pengembangan Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61240/jmri.v2i3.79

Pengolahan singkong menjadi produk olahan seperti keripik membutuhkan proses pengirisan yang cepat dan efisien. Pengirisan secara manual sering memakan waktu lama, memerlukan tenaga ekstra, serta berpotensi menimbulkan kecelakaan akibat penggunaan alat tajam. Mesin pengiris singkong konvensional biasanya tidak dilengkapi sistem keamanan yang memadai, sehingga berisiko menyebabkan kecelakaan, terutama ketika pengguna tidak berhati-hati. Oleh karena itu, penelitian ini bertujuan merancang dan membangun mesin pengiris singkong yang dilengkapi dengan sistem keamanan menggunakan sensor infrared. Sensor ini mendeteksi keberadaan tangan atau objek lain yang mendekati area pisau, sehingga mesin akan berhenti secara otomatis untuk menghindari kecelakaan. Hasil perancangan menunjukkan bahwa mesin ini tidak hanya mampu meningkatkan efisiensi produksi, tetapi juga memberikan perlindungan lebih kepada operator, menjadikannya lebih aman dan efisien dibandingkan mesin pengiris konvensional. Kesimpulannya, penggunaan teknologi sensor infrared dalam sistem keamanan mesin ini efektif dalam mengurangi risiko kecelakaan serta meningkatkan produktivitas.

Enhanced Hydrogen Production from Biomass Pyrolysis using Surfactant-Modified Na-Bentonite Catalyst Irawan, Dwi; Wijayanti, Widya; Wahyudi, Slamet; Kusumo, Herma Nugroho Rono Adi; Yani, Ahmad; Wardana, I.N.G.
ASEAN Journal of Science and Engineering Vol 5, No 3 (2025): AJSE: December 2025
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ajse.v5i3.88898

This study investigates the improvement of hydrogen gas production in biomass pyrolysis through the use of Na-bentonite catalysts modified with methyl ester sulfonate (MES), a biodegradable anionic surfactant. Corn cob powder was used as the biomass feedstock in a fixed-bed pyrolysis reactor at 550°C. The MES modification introduced alkyl, ester, and sulfonate functional groups, increasing the catalyst porosity, surface area, and acidity. Structural and chemical changes were confirmed by FTIR, XRD, UV-Vis, SEM, and EDX analyses. The MES-modified Na-bentonite catalyst significantly enhanced hydrogen production, reaching 876 ppm (a 25.11% increase compared to pyrolysis without a catalyst) and also lowered the reaction temperature and shortened the reaction time. Methane production decreased as MES improved catalyst selectivity toward dehydrogenation pathways. The results indicate that MES-modified Na-bentonite is a low-cost, efficient, and environmentally friendly catalyst suitable for improving hydrogen yields in biomass pyrolysis, offering a promising alternative to conventional metal-based catalysts.

Blade Shape Analysis on The Performance of The Pelton Turbine Prototype Yani, Ahmad; Irianto, Irianto; Triyatno, Joko; Fitria, Fitria; Sobah, Saripah
INTEK: Jurnal Penelitian Vol 7 No 1 (2020): In Press
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/intek.v7i1.2055

Water turbine is one of the driving machines where the working fluid is water that is used directly to spin the turbine runner. This research was conducted using a pelton type water turbine installastion with variations In the shape of the turbine blade. The research method used is an experimental method with a laboratory scale experimental design as well as the results of the design of this water turbine used as a practical tool for students majoring in mechanical engineering. The results showed the influence of turbine blade shape on the performance of the pelton water turbine prototype, so it can be concluded that the maximum tangential velocity is 12.141 rad/s, the hydraulic power value is 2.64 Watts, the kinetic power value is 3.886 Watts, maximum turbine power 99.141 Watts, maximum electric generator power 99.141 Watts, maximum turbine efficiency 25.512 %, and maximum electric generator efficiency 0.661 %.

Co-Authors Adam Tires, Brian Adelia Zepty Azzahra Ammar Fauzan Andrian Ramadhani Ardyanto Darmanto Arief Muliawan Armiyanto, Eko Ashar Ashar Ashar Bayu Asmoro Seto Budi Susanto Dedy Daud Dimas Ifnu Pratama Dwi Irawan Dwi Raharjo Eko Armiyanto Faiqah Luthfiyah Fenriyati Faiqah Luthfiyyah Fenriyati Fitra Firdaus Fitria Fitria Hariyadi, Hanif Hendra Poeswanto Heni Pujiastuti I.N.G. Wardana Irianto Irianto Irianto Joko Triyatno, Joko Joni Kasmara Junaini, Junaini Kusumo, Herma Nugroho rono adi Marhatang Marhatang Masagus Moch. Yusuf Mihdar Mihdar Miswan Prastiawan Muhammad Abdul Aziz Muhammad Yusuf Mustafa, Dedi Nuhardin, Irhamni Nurul Istiqomah Ratnawati Rezki Nur Aoliah risaldi, risaldi Ristyohadi Ristyohadi Rosmiati Rosmiati Rosmiati Rosmiati Rudi Erianto Saat Ardani Saripah Sobah Septiani, Mimin Siregar, Lisa A. Slamet Wahyudi Suliono Suliono Syahrul Mubaraq Taqwa, Taqwa Toni Hendrawan. R Tumaggor, Daniel W, Yunanri Widya Wijayanti Wildan Hamdani Yano Hurung Anoi Yenindarti Yiyin Klistafani Yonatan Patabang

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