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All Journal VANOS Journal of Mechanical Engineering Education JOURNAL OF MECHANICAL ENGINEERING, MANUFACTURES, MATERIALS AND ENERGY GERVASI: Jurnal Pengabdian kepada Masyarakat Jurnal Teknik Mesin Indonesia Jurnal ComunitA Servizio Jurnal Abdimas Maduma
Medyawanti Pane
Universitas Kristen Indonesia
Aerospace Engineering Humanities Automotive Engineering Control & Systems Engineering Education Energy Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Library & Information Science Mathematics Mechanical Engineering Nursing Social Sciences Other

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Wing Simulation Using Naca 2412 and 2415 Airfoils with Variations in Angle of Attack for Lift and Drag Medyawanti Pane
VANOS Journal of Mechanical Engineering Education Vol 8, No 2 (2023)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v8i2.22321

Abstract

The geometry of an airfoil plays a critical role in shaping an aircraft's performance, especially during maneuvering. This study emphasizes the necessity of conducting a comprehensive geometric analysis to better understand the effects of airfoil design. In pursuit of optimizing airfoil performance, we conducted extensive tests on NACA 2412 and 2415 series airfoil geometries using the ANSYS Fluent software. The tests employed Aluminum Alloy 1067 material and a wind speed of 300 m/s, encompassing a range of angle of attack variations from 0 to 180 degrees. The simulation results provided valuable insights into the velocity and pressure distributions surrounding the airfoil. Of particular interest, at an angle of 15 degrees, the NACA 2412 airfoil exhibited a maximum drag force of 69.670 N and a maximum lift force of 550.300 N. The corresponding drag and lift coefficients were 0,1516378 N and 1,1977364 N. For the NACA 2415 airfoil, the maximum drag and lift forces were 71.470 N and 564.500 N, respectively, with corresponding drag and lift coefficients of 0,1541963 N and 1,2179072 N.
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. 
Comparative CFD Analysis of NACA 0012 and NACA 4415 Airfoils at Varying Angles of Attack on Aircraft Wings Using ANSYS Fluent Medyawanti Pane
VANOS Journal of Mechanical Engineering Education Vol 10, No 1 (2025)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v10i1.31929

Abstract

During takeoff and approach to land, all aircraft move at low speed and high lift so that the wing is one of the main components of an airplane that has the basic function of being able to produce good aerodynamic performance characteristics so that objects can be lifted and maintain their position in the sky. In this study, an airfoil geometry with the NACA 0012 and NACA 4415 series was tested using ANSYS Fluent software at a speed of 200 m/s. To obtain maximum performance in this geometry, a variation of the angle of attack from 0° to 20°, was given so that the lift and drag force were obtained from each angle of attack. From the simulation and calculation results, the highest lift coefficient and drag coefficient in the NACA 0012 Airfoil simulation are at an angle of attack of 20°, is 0.5106 and 0.07829. Meanwhile, in the NACA 4415 Airfoil simulation, the highest lift coefficient is at an angle of attack of 20°, is 0.64623 and 0.08238.
Optimal Design of Gorlov Turbine Using Computational Fluid Dynamics and Taguchi Method Medyawanti Pane; Riswanton Saragih
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.v9i1.24496

Abstract

Wind energy for electricity generation presents a promising alternative to fossil fuels, driving the development of renewable energy technologies. Computational Fluid Dynamics (CFD) stands out as a powerful tool in this domain. This study focuses on optimizing the design of Gorlov turbines through a combination of CFD simulations and the Taguchi method. The research identifies four key factors influencing turbine performance: twist angle, chord length, number of blades, and aspect ratio. These factors are systematically varied using an orthogonal array, resulting in nine distinct blade configurations. Subsequently, simulations are conducted using ANSYS Fluent software under transient conditions at a wind speed of 5 m/s. Simulation results reveal that the maximum angular velocity achieved is 29.8187 deg/s, accompanied by a torque of 0.426 Nm, leading to a calculated maximum power output of 12.73 Watts. Furthermore, Taguchi analysis and ANOVA are employed to assess the significance of each factor. The analysis highlights the aspect ratio as the most influential factor, accounting for 99.7% of the observed variation. This study underscores the potential of CFD and the Taguchi method in optimizing wind turbine design for enhanced performance. The findings emphasize the critical role of the aspect ratio in determining turbine efficiency, paving the way for more efficient renewable energy generation.
Sosialisasi Pemanfaatan Molding Lilin Aromaterapi Karakter sebagai Stimulator Kegiatan Berwirausaha Anak Berkebutuhan Khusus di SLB B-C Bina Karya Insani, Pondok Bambu, Jakarta Timur Nelius Harefa; Medyawanti Pane; Jendri Mamangkey; Zefanya Sipahelut; Ivan Julius Rajagukguk; Santhya Anaomi Tamansa; Ripaldo Sihombing; Tesalonika Febriani Zebua
JURNAL Comunità Servizio : Jurnal Terkait Kegiatan Pengabdian kepada Masyarakat, terkhusus bidang Teknologi, Kewirausahaan dan Sosial Kemasyarakatan Vol. 6 No. 2 (2024): OKTOBER
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM), Univesitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/cs.v6i2.6258

Abstract

The socialization activity of the use of character aromatherapy candle molding is intended as an effort to stimulate the entrepreneurial activities of ABK in the context of providing options for economically valuable products that can be marketed on digital platforms. The participants of the activity numbered 25 people consisting of 17 ABK students, 8 educators and education personnel, which was carried out at SLB B-C Bina Karya Insani, Pondok Bambu, East Jakarta. The form of activity is in the form of socialization of the essence of entrepreneurship and socialization of the use of character aromatherapy candle molding in the context of producing specific products that have economic value and are worthy of being marketed on digital platforms. In the socialization process, random interviews were conducted with participants regarding their responses to the essence of entrepreneurial activities and the contribution of character aromatherapy candle molding. Based on the interview data, 61.11% of ABK students think that entrepreneurial activities are very important activities for them to do. 77.78% of ABK students think that the product is very suitable to be used as one of the product options that can be marketed on digital platforms, while 100% of educators and education personnel think that character aromatherapy candles are very suitable to be used as one of the entrepreneurial products that can be marketed on digital platforms. In the context of optimizing the use of molding, structured and continuous socialization and training are needed so that the contribution of molding can be increased.
Experimental Study of the Effect of Water Pressure Variations and Number of Nozzles on Pelton Turbine Power and Efficiency in a Laboratory-Scale Micro Hydropower System Medyawanti Pane
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 10 No. 1 (2026): June 2026 Edition
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v10i1.17463

Abstract

Micro-Hydropower (MHP) is a renewable energy source that can be utilized to generate electricity on a small scale. This study aims to analyze the effect of water pressure variations on the performance of a laboratory-scale Pelton turbine and compare the performance of a single-nozzle and a double-nozzle system. The research method used was an experimental method with pressure variations of 2, 2.5, and 3 kg/cm² and electrical loads of 5–25 watts. Observed parameters included turbine rotation, voltage, current, output power, and system efficiency. Test results showed that increasing water pressure increased turbine output power and efficiency in both nozzle configurations. In the single-nozzle configuration, the maximum output power reached 15.19 W with a peak efficiency of 9.8% at a pressure of 3 kg/cm². Meanwhile, in the double-nozzle configuration, the maximum output power was 11.12 W with an efficiency of 7.2% at the same pressure. In general, the single-nozzle configuration performed better than the double-nozzle configuration in a laboratory-scale Pelton turbine system due to a more optimal water jet distribution and lower hydraulic losses.
PEMANFAATAN LIMBAH PLASTIK UNTUK PENGEMBANGAN USAHA BANK SAMPAH NUSA INDAH PADA PEMBUATAN PAVING BLOCK Sudarno P Tampubolon; Medyawanti Pane; Sesmaro Max Yuda; Togu Tri Saputra Lumban Gaol; Gresia Enjelina Siahaan; Luice Raymon Nainggolan; Melky Hendrik Kelo
GERVASI: Jurnal Pengabdian kepada Masyarakat Vol. 10 No. 1 (2026): GERVASI: Jurnal Pengabdian Kepada Masyarakat
Publisher : LPPM IKIP PGRI Pontianak

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31571/gervasi.v10i1.10041

Abstract

Akumulasi sampah plastik menyebabkan pencemaran tanah dan perairan, memicu polusi udara, serta berkontribusi terhadap peningkatan emisi gas rumah kaca yang memperburuk pemanasan global dan perubahan iklim. Volume sampah plastik yang terus meningkat tidak diimbangi dengan sistem pengelolaan yang efektif, sehingga kapasitas Tempat Pembuangan Akhir (TPA) semakin terbatas dan pencemaran lingkungan meluas hingga ke lautan. Daur ulang plastik yang masih rendah, hanya berkisar 5–10%, menunjukkan perlunya inovasi pengolahan limbah. Sosialisasi dan pelatihan pembuatan paving block dengan campuran plastik PET menjadi alternatif inovatif untuk meningkatkan nilai guna sampah plastik sekaligus mengurangi dampak negatif terhadap lingkungan. Kegiatan ini menghasilkan paving block mutu C dengan f’c 12,5–15 MPa dengan campuran plastik yang memiliki daya serap air yang lebih rendah dibandingkan dengan paving normal, karena sifat plastik yang hidrofobik. Paving block dengan campuran plastik memberikan pengaruh minimal pada perendaman, sedangkan paving mormal peningkatan serapan lebih signifikan akibat struktur pori yang lebih terbuka.
Sosialisasi, Pelatihan, dan Pemanfaatan Daur Ulang Limbah Plastik Sebagai Campuran Pembuatan Paving Block di Bank Sampah Berkah Srikandi Jakarta Timur Sudarno P Tampubolon; Medyawanti Pane; Martinus Nifotuho Fau; Charly David Hutagalung; Prestasi Aswinda Zebua; Yohan K. Kafolapada; Zefanya Tomaluweng
JURNAL ABDIMAS MADUMA Vol. 4 No. 3 (2025): Oktober, 2025
Publisher : English Lecturers and Teachers Association (ELTA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52622/jam.v4i3.526

Abstract

Limbah plastik merupakan salah satu permasalahan lingkungan yang serius karena sulit terurai dan volumenya terus meningkat. Bank Sampah Berkah Srikandi merupakan salah satu bank sampah pengolahan limbah plastik yang belum optimal di dalam pengelolaan sampah, sehingga nilai ekonominya masih rendah. Program Pengabdian kepada Masyarakat ini bertujuan memberikan solusi melalui sosialisasi, pelatihan, dan daur ulang limbah plastik sebagai bahan campuran pembuatan paving block ramah lingkungan. Metode pelaksanaan meliputi persiapan, sosialisasi mengenai bahaya limbah plastik, pelatihan penggunaan mesin pencacah, dan praktik pembuatan paving block dengan campuran limbah plastik PET. Hasil kegiatan menunjukkan antusias dari warga untuk mengetahui bagaimana proses pengolahan limbah plastik menjadi material campuran dalam pembuatan paving block karena hal ini masih inovasi yang baru bagi masyarakat. Di dalam praktik pembuatan paving block digunakan 1,64 kg plastik PET yang sudah di cacah untuk bahan campuran pembuatan paving block. Produk paving block yang dihasilkan memiliki daya serap air relatif tidak signifikan, berbeda dengan paving normal yang lebih porus sehingga sangat baik untuk digunakan dan memiliki nilai ekonomis serta ramah lingkungan. PkM ini membangun kesadaran masyarakat terhadap konsep ekonomi sirkular serta membuka peluang usaha mikro berbasis daur ulang plastik. Kata Kunci : Limbah plastik; PET; Mesin Pencacah; Sosialisasi; Pelatihan; Paving Block
Pelatihan Pengoperasian Mesin CNC Milling di SMTK Sabu Raijua, Nusa Tenggara Timur Aryantono Mortowidjojo; Sesmaro Max Yuda; Medyawanti Pane; Stepanus; Ivan Julius Rajagukguk; Zefanya Sipahelut; Melky Hendrik kelo; Maria Helena Putri Nira; Jonathan Oliver Kislew Tanuwidjaja
JURNAL Comunità Servizio : Jurnal Terkait Kegiatan Pengabdian kepada Masyarakat, terkhusus bidang Teknologi, Kewirausahaan dan Sosial Kemasyarakatan Vol. 7 No. 2 (2025): OKTOBER
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM), Univesitas Kristen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/cs.v7i2.7034

Abstract

The development of technology is increasingly rapid, especially in the world of machinery or industry, so improving the competence of student graduates is very important to prepare the workforce needed in the industrial environment. SMTK Sabu Raijua East Nusa Tenggara is currently unable to have a craft technique based on science and technology that supports the industrial era 4.0. as an initial competency in the production process for small and medium industries in the field of manufacturing technology and engineering. Therefore, the Universitas Kristen Indonesia through the PkM Team, conducted CNC milling machine programming training for teachers and students. This training aims to improve the abilities or competencies of students in preparation for entering the industrial world which is packaged in extracurricular lessons. The method of implementing this PkM activity uses the training and evaluation method. This training activity includes selecting milling eyes, a simple product design process on Vetric software, creating G-Code files on Vetric software, calibration between system coordinates and machine coordinates, and operating CNC machines. The training was attended by 36 participants consisting of students and teachers of SMK HKBP Pematang Siantar on January 27-29, 2025. After training and observation, it was concluded that participants were able to produce simple products such as key chains based on CNC machines according to the standards determined by the team.
Co-Authors Abdi Usia Siahaan Amos Amos Andreas Antonius, Dikky Aryantono Mortowidjojo Bambang Widodo Berlianto Daud Immanuel Billy Christian Wendo Dwisanda Budiarto Charly David Hutagalung Edward Baringin Oloan Sihite Frengky Elyes Gresia Enjelina Siahaan Ivan Julius Rajagukguk Jendri Mamangkey Joko Herman Lumbantoruan Jonathan Oliver Kislew Tanuwidjaja Kimar Turnip Lionardo Lionardo Luice Raymon Nainggolan Maria Helena Putri Nira Martinus Nifotuho Fau Melky Hendrik Kelo Melya Dyanasari Sebayang Nelius Harefa Prestasi Aswinda Zebua Rahmad Samosir Rio Parluhutan Ripaldo Sihombing Riswanton Saragih Santhya Anaomi Tamansa Sesmaro Max Yuda Sianturi, Manogari Stepanus Stepanus Sudarno P Tampubolon Tesalonika Febriani Zebua Togu Tri Saputra Lumban Gaol Yohan K. Kafolapada Zefanya Sipahelut Zefanya Tomaluweng