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Mandra, Mohammad Ahsan S
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Aerospace Engineering Automotive Engineering Control & Systems Engineering Education Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering Other

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Studi eksperimental kinerja mesin TV-1 (engine research test) berbahan bakar campuran diesel-biodiesel Musa, Muhammad Iskandar; Paloboran, Marthen; Rahim, Ismail; Mandra, Mohammad Ahsan S; Herman
Jurnal Teknik Mesin Indonesia Vol. 19 No. 1 (2024): 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.v19i1.566

Abstract

This research is a laboratory experimental research that uses research testing machines. Using biodiesel fuel, a mixture of oil and diesel fuel. The composition of the biodiesel mixture used in this research was B35, B40, and B50 into diesel fuel in millilitres (ml). Tests were carried out by varying the load and compression ratio (CR), namely loads of 3 kg, 5 kg, 8 kg, and compression ratios of 14, 16, and 18. Data collection used observation techniques using tables to record the study results obtained. By using descriptive analysis techniques in the form of graphs and tables to make it easier to find out the study results. The results of the study from the engine performance research tests obtained were that performance increased with increasing loading at low compression ratios with the addition of biodiesel to diesel fuel, while at high compression ratios, the greatest power was obtained from B35 mixed fuel. However, the lowest fuel consumption in the mixture composition is the B35 mixture. Meanwhile, the lowest emission density opacity obtained was in the mixture of B35 and B40 biodiesel.
Penerapan Teknologi Tepat Guna dalam Pengolahan Industri Kecil Gula Aren di Sulawesi Selatan Mandra, Mohammad Ahsan S; Aswar, Aswar; Mustarin, Amirah
UNM Environmental Journals Vol 7, No 2 (2024): April
Publisher : Pascasarjana Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26858/uej.v7i2.74587

Abstract

Kajian pustaka ini menganalisis penerapan teknologi tepat guna (TTG) pada industri pengolahan gula aren skala kecil di Sulawesi Selatan. Industri gula aren tradisional menghadapi berbagai inefisiensi, termasuk produktivitas rendah, kualitas produk yang tidak konsisten, pemasaran terbatas, risiko produksi, dan kendala sumber daya manusia dan modal. Penerapan TTG, seperti tungku modifikasi, evaporator vakum, mesin kristalisasi/granulator, dan oven pengering, telah terbukti secara signifikan meningkatkan efisiensi produksi, kualitas produk (terutama gula aren granul), dan nilai tambah ekonomi. Secara ekonomi, TTG berkorelasi positif dengan peningkatan pendapatan dan penciptaan lapangan kerja. Secara sosial, TTG memberdayakan masyarakat, mengubah pola pikir dari konsumsi nira mentah menjadi produk olahan bernilai tinggi, dan mendorong pembentukan kelompok usaha. Aspek keberlanjutan lingkungan juga ditekankan melalui pemanfaatan pohon aren yang multiguna. Keberhasilan adopsi dan keberlanjutan TTG sangat bergantung pada kolaborasi erat antara pemerintah daerah, lembaga pendidikan dan penelitian, serta organisasi nonpemerintah dan kelompok masyarakat. Meski demikian, tantangan seperti rendahnya kualitas sumber daya manusia, terbatasnya akses permodalan, dan ketersediaan bahan baku masih perlu diatasi melalui rekomendasi strategis yang komprehensif untuk mencapai industri gula aren yang tangguh dan berkelanjutan.
Co-Authors Amirah Mustarin Aswar Aswar Herman Marthen Paloboran Muhammad Iskandar Musa Rahim, Ismail