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All Journal Rekayasa Mesin Jurnal Technopreneur (JTech) Otopro
Adrian Maidangkay
Jurusan Teknik Mesin, Politeknik Negeri Manado
Agriculture, Biological Sciences & Forestry Automotive Engineering Computer Science & IT Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Other

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Pengaruh Sudut Pengarah Aliran dan Jumlah Sudu Radius Berengsel Luar Roda Tunggal terhadap Kinerja Turbin Kinetik Maidangkay, Adrian; Soenoko, Rudy; Wahyudi, Slamet
Jurnal Rekayasa Mesin Vol 5, No 2 (2014)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (673.985 KB)

Abstract

The aimof this research was to know kinetic turbine performance feat influence onguide angle of the water input flow and the amount of outter radius blade hinged of single wheel. Kinetic turbine was used in this research, it has vertical axes with three guide angle variations of 150, 250, and 350 and also the amount of blades is 8, 10 and 12. The results showed that the guide angle of flow and the amount of blades influence the kinetic turbine performance (power, efficiency, and torque). The guide angle of flow and the amountof blade out hinged radius of single wheel influences the kinetic turbine performance. From several angle variation of guide angle and the amount of blade out hinged radius of single wheel under observation, the turbine performance with guide angle of flow 350 higher than 250 and 150. The performance of 12 blades turbine is higher than turbine with blades of 10 and 8. The higher guides angle the more blades, the higher tangential force, torque, power and efficiency. The maximum performance of kinetic turbine occurs at the guide angle of flow 350, the blades amount 12, revolution 90 rpm, water capacity 50m3/hour and with produced power, efficiency and torque are 21.365 Watt, 33,241 %, and 3.864 N.m respectively.Keywords: Kinetic Turbine, Performance, Guide Angle of Flow, Amount of Blade
RANCANG BANGUN TURBIN KINETIK SUDU BERENGSEL LUAR SEBAGAI PEMBANGKIT LISTRIK SKALA PIKOHIDRO Silvy Dollorossa Boedi; Alfred Noufie Mekel; Adrian Maidangkay
Otopro Vol 17 No 2 Mei 2022
Publisher : Jurusan Teknik Mesin Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/otopro.v17n2.p69-75

Abstract

The problem of energy shortages is still a global problem which is especially felt in developing countries whose residents live in villages, which still require the development of more efficient energy sources. The problem of meeting the availability of electricity in rural areas by utilizing water energy as new and renewable energy is a long-term goal in this research.  The goal is to obtain the value of the turbine power from the turbine design which is designed to later be able to fulfill a picohydro scale power plant. The current research on kinetic turbines is a combination of two types of waterwheels, which have a vertical axis (overshot turbine and pusher turbine). Most water turbines have fixed blades. In this research, the target of the novelty is a kinetic turbine with a vertical shaft which has a hinged blade. Hinged blades are blades that can move when the flow of water hits the blades, so that on one side of the turbine it will reduce negative torque and on the other hand it will increase turbine rotation. The results of the research that became the target were to obtain a turbine design that has more optimal turbine power and efficiency, compared to a turbine that has a fixed blade, so that this externally hinged blade kinetic turbine can contribute to the provision of rural electrical energy. The optimum value in this study is the number of blades 10 and turbine power 59.01 Watt.
ANALISIS PENGARUH VARIASI BENTUK SAMBUNGAN LAS LISTRIK TERHADAP SIFAT MEKANIK PELAT STAINLESS STEEL 304L Nodi Poluan Sompie; Jedithjah Naapia Tamedi Papia; Adrian Maidiangkay
Jurnal Technopreneur (JTech) Vol 10 No 2 (2022): JURNAL TECHNOPRENEUR (November)
Publisher : UPPM Politeknik Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30869/jtech.v10i2.944

Abstract

Tujuan penelitian ini adalah untuk mengetahui Pengaruh Variasi Sambungan Las Listrik Terhadap Sifat Mekanik Pelat Stainless Steel 304L. Kegiatan penelitian dilakukan di Laboratorium Teknik Mesin Politeknik Negeri Manado. Pembentukan specimen uji tarik disesuaikan standar ASTM-E8. Penelitian ini dapat disimpulkan bahwa pemilihan diameter elektroda dan arus las sangat mempengaruhi kekuatan tarik las. Tegangan tarik maksimum rata-rata tertinggi untuk bahan tanpa las (bahan normal) sebesar ( σu ) = 657,6 (N/ mm2) .atau 65.7 (Kg/mm2). Untuk bahan hasil pengelasan lap joint tegangan tarik maksimum sebesar ( σu ) = 385,6 (N/ mm2) untuk sambungan butt joint tegangan tarik maksimum sebesar ( σu ) = 675,2 (N/ mm2) dan untuk sambungan fillet joint tegangan tarik maksimum rata-rata sebesar ( σu ) =672,2(N/ mm2). Dari pengelasan tersebut dapat diketahui dimana sambungan las sudut (Fillet joint) lebih tinggi nilai kekuatan tarik dibandingkan sambungan,las tumpang (lap joint), las Temu (Butt joint) dan benda uji tanpa lasan.
Co-Authors Alfred Noufie Mekel Jedithjah Naapia Tamedi Papia Nodi Poluan Sompie Rudy Soenoko Silvy Dollorossa Boedi Slamet Wahyudi