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All Journal RELE: Rekayasa Elektrikal dan Energi Jurnal Teknik Elektro Sisfo: Jurnal Ilmiah Sistem Informasi jes
Nasution, Elvy Sahnur
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Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Engineering Library & Information Science Mechanical Engineering

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Journal : Sisfo: Jurnal Ilmiah Sistem Informasi

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PEMBUATAN HYDROFOIL TURBIN DARRIEUS M, Muharnif; Nasution, Elvy Sahnur
Sisfo: Jurnal Ilmiah Sistem Informasi Vol 2, No 1 (2018): Sisfo: Jurnal Ilmiah Sistem Informasi, Mei 2018
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/sisfo.v2i1.1004

Abstract

Hydrokinetic water turbines do not require high water pressure (head) to work.Another advantage of the Darrieus turbine is that it is less sensitive to turbulencebut sensitive to flow direction. Among some forms of turbine turbine turbinegeometry, straight-angled geometry (or H-Darrieus) is more popular due to easierfabrication and simpler construction. The number of blades using the NACA type0012 H-rotor has the best self-starting effect but not for all azimuth blade positions.If the blade is fixed and unregulated then the angle of charge will change at anytime depending on the position of the blade which consequently alters thedynamic force of the water to the blade and therefore tends to occur in the lowtorque of the tubin and decrease the turbine effiency. One disadvantage of theDarrieus turbine is its low self-starting torque. So the problem in this research ishow the turbine produced performance with variation of the number of blades.The study was conducted to analyze the perforamance of low-speed darrieusturbines shown by self-starting characteristics, dynamic torque, power, andefficiency produced by turbines. The test rig comprises two main components: amodel of stream flow made of acrylic and a model of the Darrieus turbine. Rivermodels from upstream shelters, canals and downstream water reservoirs. Waterfrom upstream flows into the runner through the incoming side. Then waterflowed into the downstream storage basin. In the construction of this model is notmunggunakan draft tube. The runner house has a fully enclosed top casing with nodraft tube and wall, the water flow rate and Head of water level are set by the feedwater pump. The difference between the water level in the upstream reservoir andthe water level in the canal is kept constant. Once the above is achieved then it canbe tested. The shaft rotation is measured by the rotation sensor and the shafttorque force is measured using a load cell. Experiments carried out with variationsof torque loads with constant flow rate of water The manufacture of the Darrieousturbine model testing apparatus has been completed. This model comes with aData acquisition Tool using arduino UNO with DAQ PLX that works according toplan. In taking the research dataKey word: Darrieus turbine, hydrofoil,manufacture
RANCANG BANGUN ALAT PENJEMUR TERASI OTOMATIS BERBASIS MICROCONTROLER Nasution, Elvy Sahnur; Hasibuan, Arnawan; Rifai, M.
Sisfo: Jurnal Ilmiah Sistem Informasi Vol 2, No 2 (2018): Sisfo: Jurnal Ilmiah Sistem Informasi, Oktober 2018
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/sisfo.v2i2.1016

Abstract

Salah satu usaha pengolahan hasil perikanan berupa pembuatan terasi. Terasi(shrimp paste) merupakan salah satu produk awetan ikan-ikan kecil atau rebonyang telah diolah melalui proses pemeraman atau fermentasi, penggilingan ataupenumbukan dan penjemuran. Persoalan terasi lainnya adalah tempat untukpenjemuran dan tingkat kekeringan terasi. Dalam penelitian dirancanglah alatpengering terasi otomatis yang diharapkan dapat meningkatkan hasil produksiterasi oleh masyarakat. Hasil dari penelitianini diperoleh hasil prototype alatpengering terasi otomatis yang tepat guna sehingga dapat mengurangipenggunaan tenaga manusia dan dapat terlaksana walau cuaca tidakmemungkinkan.Kata kunci : Terasi, Pengeringan), Ardiuno Uno.
Pengaturan Kecepatan Motor Induksi 3 Phasa Dengan Merubah Frekuensi Menggunakan Inverter ALTIVAR 12P Nasution, Elvy Sahnur; Hasibuan, Arnawan
Sisfo: Jurnal Ilmiah Sistem Informasi Vol 2, No 1 (2018): Sisfo: Jurnal Ilmiah Sistem Informasi, Mei 2018
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/sisfo.v2i1.1001

Abstract

Dewasa ini mesin listrik yang sering digunakan pada dunia industri adalah motorinduksi, hal ini karena motor induksi memiliki beberapa keunggulan dibandingkan jenis motor lain, diantaranya memiliki efisiensi yang relatif tinggi, konstrusi yang sederhana dan kuat, serta mudah dan murah dalam perawatannya. Salah satu kelemahan dari motor induksi adalah mengatur kecepatan putaran motor. Kecepatan putaran motor induksi dapat diubah dengan cara mengubah frekuensi dengan menggunakan inverter. Penelitianini bertujuan mengetahui pengaruh perubahan frekuensi terhadap kecepatan putaran motor induksi 3 phasa menggunakan inverter. Hasil penelitian ini adalah perubahan frekuensi pada inverter dapat menyebabkan perubahan kecepatan putaran motor induksi 3 phasa. Perubahan frekuensi inverter dengan cara mengatur tegangan input inverter dengan mengubah-ubah tahanan (potensio meter ) pada inverter dapat merubah kecepatan motor induksi 3 phasa.Kunci : Motor Induksi 3 Phasa, Inverter (VFD), Frekuensi, Tegangan, Putaran.
Co-Authors Ali, Masri ARHAMI Arnawan Hasibuan Azhar Azmi, Saddam Evalina, Noorly Gapy, Mansur Hasibuan, Akbar Kurnia M, Muharnif M. Rifai Masri Ibrahim Nasution, Lita Pasaribu, Faisal Irsan Rasidy, Muhammad S Suherman Suhaeri Suriadi