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All Journal VANOS Journal of Mechanical Engineering Education JOURNAL OF MECHANICAL ENGINEERING, MANUFACTURES, MATERIALS AND ENERGY Jurnal Teknik Mesin Indonesia
Rahmad Samosir
Universitas Kristen Indonesia
Aerospace Engineering Automotive Engineering Control & Systems Engineering Education Energy Industrial & Manufacturing Engineering Mechanical Engineering

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Perancangan Turbin Angin Vertikal Modifikasi Gabungan Savonius dan Darrieus Menggunakan Geometri Naca 0018 Rahmad Samosir; Medyawanti Pane; Joko Herman Lumbantoruan
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol 5, No 1 (2021): EDISI JUNI
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v5i1.4108

Abstract

Desain gabungan antara modifikasi Savonius dan modifikasi Darieus (menggunakan geometri airfoil NACA 0018) dirancang memanfaatkan kecepatan angin rendah yang akan di konversi menjadi energi listrik alternatif sehingga dapat dimanfaatkan untuk rumah tangga dan komersil. Dikarenakan kedua jenis turbin ini memiliki kelebihan dan kekurangan masing-masing, maka dirancang pengabungan dari modifikasi kedua turbin ini yang mampu memberikan daya yang lebih besar. Pada kecepatan yang sama yaitu 6,1 m/s dilakukan pengujian dan diperoleh daya yang dihasilkan oleh turbin modifikasi Savonius ialah 3,32 Watt dan daya yang dihasilkan oleh turbin modifikasi Darrieus ialah 14,62 Watt, sementara daya yang dihasilkan oleh turbin modifikasigabungan lebih tinggi yaitu17,86 Watt. Dari hasil tersebut dapat disimpulkan bahwa turbin modifikasigabungan 1,2 kali lebih besar dari modifikasi Darieus, dan daya yang dihasilkan oleh turbin modifikasi gabungan 5,38 kali lebih besar dari modifikasi Savonius. Sementara koefisien daya dihasilkan oleh turbin modifikasi gabungan 1 kali lebih besar dari modifikasi Darieus, dan koefisien daya yang dihasilkan oleh turbin modifikasi gabungan 5,05 kali lebih besar dari modifikasi Savonius. Sehingga penggabungan modifikasi turbin Darieus-Savonius pada satu poros dapat meningkatkan efisiensi dalam mengkonversi energi angin menjadi daya listrik.
Analisis ketahanan pompa dengan penggerak arus listrik direct current Rahmad Samosir; Medyawanti Pane; Kimar Turnip; Rio Parluhutan
Jurnal Teknik Mesin Indonesia Vol. 17 No. 1 (2022): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36289/jtmi.v17i1.271

Abstract

Saat pompa air DC sudah banyak diproduksi, namun masih jarang digunakan masyarakat umum. Penggunaan dengan arus DC sangat potensial karena dapat menggunakan listrik langsung dari panel surya, akan tetapi masyarakat umum belum mengetahui keandalan pompa tersebut. Untuk mengetahui keandalan pompa tersebut, dilakukan kajian ini. Berdasarkan pengujian yang dilakukan untuk mengetahui ketahanan pompa menggunakan pompa DC dengan spesifikasi sebagai berikut: daya masimum 180 W, head maksimum 15 m, kapasitas maksimum 1,5 m3/jam dengan 12 V. Dari hasil pengujian selama 5 x 24 jam dengan head 4,9 m diperoleh hasil yaitu pada voltage 12,04 V dan 4,09 A didapat kapasitas pompa yaitu 23 liter/menit, daya pompa 50,7 W. Pada tegangan 7,7 V dan 6,02 A didapatkan kapasitas pompa yaitu 10 liter/menit, daya pompa 46,4 W. Pada tegangan 12,06 V dan 4,1 A didapatkan kapasitas pompa yaitu 20 liter/menit daya pompa 49,4 W. Sehingga dapat diambil kesimpulan bahwa dari hari pertama sampai hari ke tujuh, performa pompa dapat dinilai hanya mengalami sedikit perubahan dari 23 liter/menit menjadi 20 liter/menit.
Utilization of Solar Panels To Distribute Clean Water In Saibi Samukop Village Rahmad Samosir; Berlianto Daud Immanuel; Medyawanti Pane
VANOS Journal of Mechanical Engineering Education Vol 7, No 2 (2022)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v7i2.16860

Abstract

Water as one of the important elements of life is a problem in its availability in nature. The availability of water used is only 3% fresh water compared to seawater. Saibi Samukop Village is a village located in the Mentawai Islands with minimal development including the construction of a clean water supply for community needs. To obtain clean water easily, the researchers designed a clean water distribution system by utilizing solar energy as an energy source to drive DC pumps. 2 solar panels used 100 Wp to charge 2 batteries as power storage. The pump specifications used have a maximum power of 180 Watts with a 15 meter Head with 12 Volts. From the test results an 8.1 pump head operating for 6,4 hours/day with a required power of 100,5 Watt and an electric current of 53,6 Ah. The pump is able to distribute water to the Pangasaat hamlet community in the range of 100,50 liters/day.
Design of Micro Hydro Power Plant In Girimulyo Village Rahmad Samosir; Medyawanti Pane; Lionardo Lionardo; Kimar Turnip
VANOS Journal of Mechanical Engineering Education Vol 7, No 2 (2022)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v7i2.16778

Abstract

The utilization of water as a natural resource from renewable energy for power generation is an alternative solution to replace the need for fossil fuels. In Girimulyo village, Ngargoyoso sub-district, there is a river that can be potential to become a Micro Hydro Power Plant. From field observations and calculations using the GPS (Global Positioning System) application, the water discharge Q = 0,2 m3/s. and the height of the waterfall H = 16,5 m. Based on the height and the existing water flow, it is determined that the turbine used is the Pelton turbine. From the calculation of the effective head of 15,81 m. With the water discharge used to rotate the Pelton turbine, the power obtained is 20,162 kW. From this power, it can be calculated that the shaft diameter is 38 mm. To make it easier to adjust the rotation between the generator and the Pelton turbine rotation, a flat belt type belt transmission with a width of 300 mm and a thickness of 9 mm is used while the maximum belt tension is 39 kg with a tangent angle between the pulley and the belt 7,180.
Thrust Analysis of 250 Watt DC Motor With 12 Volt And 24 Volt Medyawanti Pane; Billy Christian Wendo Dwisanda; Rahmad Samosir
VANOS Journal of Mechanical Engineering Education Vol 7, No 2 (2022)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v7i2.16772

Abstract

To reduce damage to plantation gutters due to water shock from the propeller, the team tried to make a thrust test using air as a fluid. By using a 250 Watt DC motor which gets its power from the sun's heat to drive the boat, then testing the propeller with variations in the diameter of the propeller 660 mm, 762 mm, and 812,8 mm, and testing the voltage variations at 12 volts, 18 volts and 24 volts at each propeller. Analysis of the use of solar panels required obtained as many as 2 solar panels 170 WP. From the calculation of the size of the shaft diameter that is suitable for use, it is obtained that the size of the shaft diameter is 10 mm. The results of the thrust testing obtained vary, depending on the size of the propeller diameter and voltage variations, so an adequate diameter size is obtained by using a diameter of 812,8 mm with a power of 218,2 Watt where the thrust generated is equal to 5,8 Kg. The highest current produced is 9.1 amperes, this value is qualified because it does not exceed 10 amperes. From the test results of the thrust test of the propeller, it can be concluded that the design and analysis meet the needs.
Design of Clean Water Distribution System in Saibi Samukop Village Medyawanti Pane; Amos Amos; Rahmad Samosir
VANOS Journal of Mechanical Engineering Education Vol 7, No 2 (2022)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v7i2.16771

Abstract

In Saibi Samukop Village some wells are used by the community for daily needs, but the water is drawn from the wells using a bucket simultaneously, so the water becomes cloudy. For this reason, researchers designed a clean water distribution system using 2 100 Wp solar panels to charge 2 batteries to turn on the pump. The pump specifications used have a maximum power of 180 Watts, a Head of 15 meters with 12 Volts. From the test results with a head of 9.32 meters, the required power is 67 Watts and a strong current of 5.5 Ampere so that it can run the pump for 17 hours. Based on the need for clean water in Saibi Samukop Village for Massogunei Hamlet of 1053 liters/day and Pangasaat Village of 9420 liters/day, the pump is required to operate for 6.03 and 6.4 hours/day with pump efficiency of 34%.
Perancangan Turbin Angin Vertikal Modifikasi Darrieus Menggunakan Geometri Airfoil Naca 2414 Medyawanti Pane; Andreas; Rahmad Samosir
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 7 No. 2 (2023): Edisi Desember 2023
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v7i2.9456

Abstract

The National Energy General Plan policy is one of the government's focuses on controlling the use of renewable energy in line with the development of the need for energy use for the community, especially in the electricity sector. Electrical energy is energy that is very important for human needs, where every human being is very dependent on electricity for their daily needs. Currently, there is a crisis of fossil resources, so renewable energy can be developed. One renewable energy that is easy to develop is a wind turbine by utilizing the energy of the wind that blows. Indonesia has started to pay attention to increasing the efficiency of electricity generation, especially wind power. The type of turbine planned is the Darrieus type vertical axis wind turbine (VAWT) using a modified NACA Airfoil 2414 geometry with variations in wind speed. At a speed of 7,61 m/s from the test results obtained the power produced by the turbine is 20,78 watts with a voltage of 11,61 Volts and an electric current of 1,79 Amperes and at 354 rpm generator rotation. from the results obtained, the higher the wind speed, the higher the rotation produced by the turbine.
Utilization of Solar Power Plants to Drive Organic Waste Shredding and Grinding Machines Rahmad Samosir; Bambang Widodo; Budiarto Budiarto; Manogari Sianturi; Medyawanti Pane
VANOS Journal of Mechanical Engineering Education Vol 9, No 1 (2024)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v9i1.25014

Abstract

Solar power plants continues to experience good development and even PLTS can be used to overcome environmental problems, so this research aims to utilize renewable energy as a driving force for waste processing machines by designing organic waste chopping and grinding equipment. The specified motor power is 2 HP or 1.5 kW with 275 rpm, so the number of panels required is 12 pieces which are converted into AC from DC by the inverter. Based on power and rotation, the torque calculation results obtained are 2760 kg cm, the shaft diameter is 18.86 mm, the belt type is type A with a top belt width of 12.5 mm and a thickness of 8 mm, and transverse pegs with a width of 8 mm, a thickness of 7 mm. and 40 mm long based on ISO 2292 (according to pulley hub thickness). Based on the calculations and transmission design, a waste processing tool was built and then tested. From the tests, it was found that the power produced by PLTS was 1.5583 kW at 2239 Lux light to chop up 2 kg of organic waste. 
Co-Authors Amos Amos Andreas Bambang Widodo Berlianto Daud Immanuel Billy Christian Wendo Dwisanda Budiarto Joko Herman Lumbantoruan Kimar Turnip Lionardo Lionardo Manogari Sianturi Medyawanti Pane Rio Parluhutan