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All Journal Rekayasa Mesin Jurnal Fisika FLUX Info-Teknik Turbo : Jurnal Program Studi Teknik Mesin Civil and Environmental Science Journal (CIVENSE) Multitek Indonesia : Jurnal Ilmiah Jurnal Elemen Scientific Journal of Mechanical Engineering Kinematika Buletin Profesi Insinyur JTAM ROTARY JMIO: Jurnal Mesin Industri dan Otomotif International Journal of Mechanical Engineering Technologies and Applications (MECHTA) Jurnal Pengabdian Ilung (Inovasi Lahan Basah Unggul)
Andy Nugraha
Program Studi Teknik Mesin Fakultas Teknik Universitas Lambung Mangkurat
Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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PENGARUH VARIASI PENDINGIN DAN MATA PAHAT TERHADAP KEKASARAN PERMUKAAN BAJA ST 37 PADA MESIN BUBUT KONVENSIONAL Annafi, Helmi Hafidz; Nugraha, Andy
JTAM ROTARY Vol 6, No 1 (2024): JTAM ROTARY
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jtam_rotary.v6i1.11699

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh variasi pahat HSS dan Carbide serta media pendingin (air kelapa, radiator coolant, dan tanpa pendingin) terhadap nilai kekasaran permukaan baja ST 37 dengan menggunakan mesin bubut konvensional.  Metode penelitian ini menggunakan metode eksperimental, yaitu spesimen dipotong sesuai ukuran kemudian dilakukan pembubutan dengan pendinginan yang ditentukan dan selanjutnya dilakukan pengujian. Setelah dilakukan pengujian, didapatkan nilai kekasaran terendah pada pahat tanpa menggunakan media pendingin, dibandingkan dengan menggunakan media pendingin air kelapa dan Radiator Coolant. Sedangkan pada mata pahat, kekasaran terendah diperoleh dengan menggunakan mata pahat HSS dibandingkan dengan menggunakan mata pahat Carbide. This study aims to determine the effect of HSS and Carbide tool variations and cooling media (coconut water, coolant radiator, and no cooling) on the surface roughness value of ST 37 steel using a conventional lathe. This research method uses an experimental method, namely the specimen is cut to size then turned with specified cooling and then tested. After testing, the lowest roughness is obtained without using cooling media, compared to usings coconut water cooling and Radiator Coolant. While on the tool blade, the lowest roughness was obtained by using the HSS tool blade compared to using the Carbide tool blade.
AN EXPERIMENTAL STUDY OF THE EFFECT OF VARIATION OF IMPACT LEVELS ON WORKING EFFICIENCY OF ARCHIMEDES SCREW TURBINE ON MICRO-HYDRO POWER PLANT Nugraha, Andy; Silalahi, Dani Surya Hamonangan; Ansyah, Pathur Razi; Ramadhan, Muhammad Nizar; Amrullah, Apip; Cahyono, Gunawan Rudi
International Journal of Mechanical Engineering Technologies and Applications Vol. 4 No. 1 (2023)
Publisher : Mechanical Engineering Department, Engineering Faculty, Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/MECHTA.2023.004.01.1

Abstract

Micro-hydro power plants take advantage of the energy potential of low-head airflow. with the development of technology that can support it, namely the Archimedes screw turbine as the driving force. Various parameters must be considered to determine the performance of micro hydro power plants with Archimedes screw turbines. A design is carried out with a discharge parameter flow rate of 2 l/s, a turbine slope of 300, and an immersion level variation of 0.3, 0.5, and 0.7, where the final result shows the value of torque, hydraulic power, mechanical power, generator, and efficiency, which decreases with the level of water immersion in the last blade.
Pengaruh Fraksi Volume pada Hybrid Komposit Serat Bemban – Purun Tikus Bermatriks Polyester terhadap Kekuatan Tekan dan Impak syarief, akhmad; Anugrahto, Ripal; Tamjidillah, Mastiadi; Ma’ruf, Ma’ruf; Nugraha, Andy; Ramadhan, Muhammad Nizar; Fadliyanur, Fadliyanur
Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat Vol 22, No 1 (2025): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v22i1.21626

Abstract

Material komposit dipahami sebagai salah satu jenis inovasi material maju yang terbentuk berdasarkan hasil penggabungan antara matrik dan satu atau beberapa penguat (reinforced) dengan memiliki karakteristik tertentu. Riset yang dilakukan bertujuan untuk mengetahui pengaruh fraksi volume hybrid composite serat bemban (Donax caniformis) – serat purun tikus (Eleocharis dulcis) bermatriks polyester terhadap kekuatan tekan dan kekuatan impak. Pembuatan sampel uji komposit dilakukan menggunakan teknik hand lay up, yaitu proses pencampuran antara matriks dan serat kedalam jenis cetakan terbuka dilakukan dengan penuangan langsung secara manual. Pengujian tekan menggunakan standar ASTM D1621-00 dan pengujian impak menggunakan standar ASTM D6110-10. Hasil penelitian menunjukkan bahwa variasi fraksi volume 18% serat bemban dan 2% serat purun tikus berpengaruh terhadap kekuatan tekan dan kekuatan impak. Variasi fraksi volume 18% serat bemban dan 2% serat purun tikus menunjukkan kekuatan tekan tertinggi dengan rata – rata nilai kekuatan tekannya sebesar 48,286 MPa dan rata – rata beban maksimal 46.433,33 N dan pada variasi fraksi volume yang sama menunjukkan kekuatan impak tertinggi dengan rata – rata kekuatan impaknya sebesar 0,1486 Joule/mm2 dan rata – rata energi impak 19,16 Joule. Nilai yang didapatkan menyatakan bahwa dengan variasi fraksi volume penguat yang didominasi oleh muatan serat bemban akan meningkatkan nilai kekuatan tekan dan impak. Hal tersebut dipengaruhi oleh perbedaan karakteristik serat. 
AN EXPERIMENTAL STUDY OF THE EFFECT OF VARIATION OF IMPACT LEVELS ON WORKING EFFICIENCY OF ARCHIMEDES SCREW TURBINE ON MICRO-HYDRO POWER PLANT Nugraha, Andy; Silalahi, Dani Surya Hamonangan; Ansyah, Pathur Razi; Ramadhan, Muhammad Nizar; Amrullah, Apip; Cahyono, Gunawan Rudi
International Journal of Mechanical Engineering Technologies and Applications Vol. 4 No. 1 (2023)
Publisher : Mechanical Engineering Department, Engineering Faculty, Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/MECHTA.2023.004.01.1

Abstract

Micro-hydro power plants take advantage of the energy potential of low-head airflow. with the development of technology that can support it, namely the Archimedes screw turbine as the driving force. Various parameters must be considered to determine the performance of micro hydro power plants with Archimedes screw turbines. A design is carried out with a discharge parameter flow rate of 2 l/s, a turbine slope of 300, and an immersion level variation of 0.3, 0.5, and 0.7, where the final result shows the value of torque, hydraulic power, mechanical power, generator, and efficiency, which decreases with the level of water immersion in the last blade.
Co-Authors Achmad Azhar Basyir Achmad Febrian Hidayat Agung Sugeng Widodo Aji Nihin Akhmad Ghiffary Budianto Akhmad Syarief Akhmad Syarief Annafi, Helmi Hafidz Anugrahto, Ripal Apip Amrullah Aris Fadilah Aufa Ramadhasari, Aulia Bayu Setiawan Dwi Suci Adianto Fadliyanur Fadliyanur, Fadliyanur Geovani Glen Supit Gunawan Rudi Cahyono Herry Irawansyah Isworo, Hajar M. Zainul Rusdi Mastiadi Tamjidillah Mastiadi Tamjidillah, Mastiadi Ma’ruf, Ma’ruf Moh Noer Afifudin Muhammad Arzy Satria Muhammad Muhammad Muhammad Nizar Ramadhan Nihin, Aji Nugroho, Wisnu Setyo Pathur Razi Ansyah Pratama, Trendy Rachmat Subagyo Rizqi Nor Al’Arisko Rusdi, M. Zainul Silalahi, Dani Surya Hamonangan Slamet Wahyudi Suryanta, Dhanu Taufik Irfansyah Sofian Trendy Pratama