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All Journal Piston: Journal of Technical Engineering JAPEPAM, Jurnal Pengabdian kepada Masyarakat
Rama, Hilfama
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Aerospace Engineering Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mechanical Engineering Social Sciences

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Pelatihan Menggambar Mesin (CAD 3D Modeling Dan CAM) Untuk Mahasiswa Jurusan Teknik Mesin Universitas Muhammadiyah Sumbar Sumiati, Ruzita; Adriansyah, Adriansyah; Nusyirwan, Nusyirwan; Rama, Hilfama; Nasirwan, Nasirwan
JAPEPAM, Jurnal Pengabdian kepada Masyarakat Vol. 4 No. 2 (2025): JAPEPAM
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat

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Abstract

Penguasaan teknologi Computer-Aided Design (CAD) dan Computer-Aided Manufacturing (CAM) merupakan kompetensi penting bagi mahasiswa Teknik Mesin dalam menghadapi tantangan industri modern yang mengutamakan automasi, presisi, dan efisiensi. Namun, keterbatasan fasilitas laboratorium dan sumber daya manusia di Universitas Muhammadiyah Sumatera Barat (UM Sumbar) menjadi kendala dalam penerapan pembelajaran berbasis CAD dan CAM. Oleh karena itu, kegiatan pengabdian ini bertujuan untuk memberikan pelatihan praktis dalam menggambar mesin menggunakan CAD 3D Modeling dan aplikasi CAM kepada mahasiswa Jurusan Teknik Mesin UM Sumbar, yang dilaksanakan melalui kolaborasi dengan Politeknik Negeri Padang (PNP). Pelatihan ini mencakup pemahaman konsep dasar CAD dan CAM, praktik pembuatan model 3D komponen mesin, dan proses integrasi model CAD ke dalam sistem CAM untuk simulasi pemesinan. Metode pelatihan yang diterapkan meliputi pendekatan teori dan praktik langsung di laboratorium Teknik Mesin PNP, yang telah dilengkapi dengan perangkat lunak CAD/CAM serta mesin CNC. Hasil kegiatan menunjukkan peningkatan signifikan dalam keterampilan mahasiswa dalam memodelkan komponen mekanik serta pemahaman mereka terhadap alur kerja CAD-CAM yang terintegrasi. Melalui pelatihan ini, mahasiswa memperoleh keterampilan teknis yang relevan dengan kebutuhan industri dan dapat mendukung kompetensi profesional mereka di bidang rekayasa desain dan manufaktur. Kegiatan ini juga mendorong peningkatan kualitas pembelajaran berbasis praktik di UM Sumbar melalui transfer pengetahuan dan kolaborasi antara perguruan tinggi.
Performance Analysis of a Two-Stage Savonius Rotor Using Numerical Methods Aziz, Abdul; Rama, Hilfama; Al-Huda, M. Firash; Zahndi, Mirwan; Sumiati, Ruzita
Piston: Journal of Technical Engineering Vol. 9 No. 2 (2026)
Publisher : Program Studi Teknik Mesin Universitas Pamulang

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Abstract

The POCREN system is a hybrid renewable energy device that integrates wind, solar, and water current energy sources to generate electrical power. The main objective of developing POCREN is to provide a sustainable electricity supply, particularly for floating fish farmers in coastal regions where the average wind speed ranges from 3 to 5 m/s. Currently, most floating cage farmers rely heavily on diesel engines to meet their electricity needs, which are costly and environmentally unsustainable. This study focuses on one of the key components of the POCREN system, namely a two-stage Savonius wind turbine, to evaluate its performance in power generation. The analysis was conducted numerically using ANSYS Fluent software. The results show that the maximum power coefficient (Cp) of the two-stage turbine was achieved at a wind speed of 5 m/s with a tip speed ratio (TSR) of 0.7, yielding a Cp value of 0.26. At a lower wind speed of 3 m/s, the maximum Cp reached 0.22 at the same TSR of 0.7. Pressure contour analysis indicates that the two-stage Savonius turbine can operate effectively at low wind speeds of approximately 3 m/s. The pressure distribution shows higher pressure on the concave side of the advancing blade compared to the convex side, generating torque that drives rotor rotation. This confirms that the two-stage configuration enhances torque continuity and enables stable operation under low wind conditions. Based on these findings, the two-stage Savonius turbine in the POCREN system is suitable for renewable energy applications in coastal environments, offering a promising alternative to reduce dependence on diesel-powered generators for floating fish farming activities.
Co-Authors Abdul Aziz Adriansyah Adriansyah Al-Huda, M. Firash Nasirwan Nasirwan Nusyirwan Nusyirwan Ruzita Sumiati Zahndi, Mirwan