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All Journal Jurnal Rekayasa Material, Manufaktur & Energi Sisfo: Jurnal Ilmiah Sistem Informasi
M, Muharnif
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Aerospace Engineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Library & Information Science Mechanical Engineering

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Analisis Termoelektrik Generator (TEG ) Sebagai Pembangkit Listrik Bersekala Kecil Terhadap Perbedaan Temperatur M, Muharnif; Umuani, Khairul; Nasution, Firman AlwiArif
Rekayasa Material, Manufaktur dan Energi Vol 5, No 1: Maret 2022
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v5i1.10260

Abstract

Electrical energy has now become a major need for the community, so it is necessary to develop alternative sources of electrical energy that are environmentally, not only on a large scale but also on a small scale. Thermoelectric Generator is a power plant that works based on the Seebeck effect, where the temperature difference between the hot and cold surfaces of these 2 electronic components is converted into electrical energy on a small scale. This study aims to analyze the effect of temperature differences that occur on the electrical energy produced in a thermoelectric. This research was studied by comparing the difference in heat generated from 1, 2 and 3 candles with Peltier elements connected in series to the power and efficiency produced with a time duration of 120 seconds. Based on thos research, it shown that this thermoelectric generator is capable to producing 0.01200 Watt with a temperature difference of 10 oC for 1 candle, and producing 0.02920 Watt with a 12 oC temperature for 2 candles and generating 0.04107 Watt with a temperature difference of 14 oC for 3 candles. While the resulting efficiency is 0.033%, 0.057% and 0.092% each using 1, 2 and 3 candles for 120 seconds.
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
Co-Authors Nasution, Elvy Sahnur Nasution, Firman AlwiArif Umuani, Khairul