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All Journal Jurnal Pengabdian kepada Masyarakat Nusantara Jurnal Polimesin
Amir D
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Automotive Engineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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Investigation of mechanical properties and dynamic characteristics of OPEFB Fiber Composite Zuhaimi Zuhaimi; Misran Misran; Indra Mawardi; Darmein Darmein; Nurlaili Nurlaili; Zaini AK; Hanif Hanif; Amir D
Jurnal POLIMESIN Vol 21, No 4 (2023): August
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v21i4.4247

Abstract

Composite materials is increasingly experiencing an increa- sing trend, the manufacture of composites currently uses a lot of natural fiber reinforcement, Oil Palm Empty Fruit Bunches (OPEFB) fiber is a fiber that comes from oil palm empty fruit bunches waste that grows a lot in Indonesia and has the potential to be used as reinforcement in the manufacture of composites. With natural fiber reinforcement. The manufacture of composites in this study varied the fiber volume fraction by 5%, 15%, and 25%. Many previous studies on composite materials have focused on studying the physical and mechanical properties of composites. Even though damage to a structure or material is not only caused by static loads but also by dynamic loads. Vibration is a dynamic load experienced by material or structure, so it is necessary to determine the dynamic character of composite materials, one of the dynamic characteristics of materials is their natural frequency, the determination of the natural frequency in this study was carried out by using the finite element method in the ANSYS software. The results of the analysis in the form of tensile strength values and modulus of elasticity were obtained from tensile testing and dynamic characters in the form of natural frequencies and vibration modes were obtained from the analysis modal simulation process. From the results of the tensile test, it was found that the composite with a variation of 15% OPEFB fiber volume had the highest tensile strength and modulus of elasticity, as well as the results of the analysis modal simulation, a composite with 15% OPPEFB fiber, had the highest natural frequency value among the other two variations.
The Penerapan Teknologi Mesin Chopper Otomatis pada Pemanfaatan Pelepah Sawit dan Limbah Biogas untuk Mewujudkan Peternakan Sapi Berbasis Green Economy Rahmawati, Gunawan; Rahmawati; Amir D; Eka Kurniasih; Juhan, Nawawi; Syarif, Jenne
Jurnal Pengabdian kepada Masyarakat Nusantara Vol. 5 No. 4 (2024): Jurnal Pengabdian kepada Masyarakat Nusantara (JPkMN) Edisi September - Desembe
Publisher : Lembaga Dongan Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55338/jpkmn.v5i4.4756

Abstract

Peternakan sapi di Desa Sekrak Kiri, Aceh Tamiang, dikelola secara tradisional dengan masalah pengelolaan limbah biogas dan ketersediaan pakan yang efisien. Pengelolaan limbah yang buruk menyebabkan pencemaran, sementara penyediaan pakan manual menghambat produktivitas. Program Pemberdayaan Berbasis Masyarakat (PBM) bertujuan menerapkan ekonomi hijau melalui pemanfaatan limbah biogas dan pelepah sawit untuk meningkatkan efisiensi dan keberlanjutan peternakan. Metode yang digunakan meliputi pengenalan teknologi mesin chopper untuk mencacah pelepah sawit sebagai pakan silase, serta pelatihan pengolahan limbah biogas menjadi pupuk cair dan padat. Pengembangan sistem kontrol kecepatan pada mesin chopper menggunakan teknik pengaturan daya listrik berbasis pulsa width modulation (PWM) untuk efisiensi energi dengan menyesuaikan kecepatan motor secara otomatis. Pelaksanaan kegiatan dilakukan melalui tahapan sosialisasi, pelatihan, pendampingan, dan evaluasi. Hasil program menunjukkan peningkatan keterampilan mitra dalam penggunaan mesin chopper dan produksi pupuk organik adalah 90% dan 85%, diiringi penurunan dampak pencemaran dari limbah ternak. Simpulan dari program ini adalah bahwa pemanfaatan limbah biogas dan pelepah sawit secara optimal tidak hanya meningkatkan efisiensi produksi peternakan sapi, tetapi juga mendukung terciptanya peternakan yang ramah lingkungan dan berkelanjutan di tingkat masyarakat. Program ini berhasil menciptakan sistem peternakan yang mendukung ekonomi hijau, mengurangi dampak lingkungan, dan meningkatkan pendapatan masyarakat lokal. Dengan inovasi ini, peternakan sapi di Desa Sekrak Kiri mampu menjadi lebih berkelanjutan dan produktif.
Co-Authors Darmein Darmein Eka Kurniasih Hanif Hanif Indra Mawardi Juhan, Nawawi Misran Misran Nurlaili Nurlaili Rahmawati Rahmawati, Gunawan Syarif, Jenne Zaini AK Zuhaimi Zuhaimi