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All Journal Jurnal Teknologi Industri Pertanian Jurnal Elemen
Yusuf Akbar
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Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Energy Engineering Industrial & Manufacturing Engineering

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Diesel Oil Biodegradation Process By Mixed Culture Of Hydrocarbon Degrader Bacteria Mohamad Yani; Yusuf Akbar
Jurnal Teknologi Industri Pertanian Vol. 19 No. 1 (2009): Jurnal Teknologi Industri Pertanian
Publisher : Department of Agroindustrial Technology, Bogor Agricultural University

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Abstract

Three isolates name as Pseudomonas aeruginosa (PA), Pseudomonas pseudomallei (PP) and Enterobacter agglomerans (EA) are petroleum hydrocarbon degrader bacteria. They were grown in mineral medium and 10% diesel oil as carbon source. The diesel oil biodegradation by PAEA and PPEA are better than single or other mixed cultures. The diesel oil compounds are oxidized to intermediate product and detected as fatty acids ranged of nC18 to nC8, organic acids, and then it was mineralized. The mineralized products measured as methane, carbon dioxide, and carbon monoxide. This result showed that during hydrocarbon biodegradation of aliphatic compounds by those isolates through fatty acids formation, simple organic acids, and simple volatile organic carbon. The mineralized product of methane, carbon dioxide, and carbon monoxide were emitted to the environment. Keywords: Biodegradation, diesel oil, Pseudomonas, Enterobacter, minerallized
ANALISA VARIASI UKURAN VENTURI KARBURATOR TERHADAP KONSUMSI BAHAN BAKAR PADA SEPEDA MOTOR YAMAHA RX-KING 135cc Kurnia Dwi Artika; Yusuf Akbar
ELEMEN : JURNAL TEKNIK MESIN Vol 3 No 1 (2016)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (681.614 KB) | DOI: 10.34128/je.v3i1.12

Abstract

Penggunaan sepeda motor saat ini mengalami peningkatan yang sangat pesat. Dampaknya adalah konsumsi bahan bakar yang juga meningkat. Teknologi sepeda motor semakin maju dan berkembang, dari mesin 2 tak menjadi 4 tak, dari sistem bahan bakar karburator menjadi injeksi. Sepeda motor RX-King masih menggunakan mesin 2 tak dan sistem karburator. Di dalam karburator terdapat lubang/pipa venturi yang pengaruhnya sangat besar terhadap putaran mesin dan konsumsi bahan bakar sesuai besarnya diameter venturi. Dari latar belakang tersebut, maka dapat dilakukan analisa pengaruh ukuran venturi terhadap konsumsi bahan bakar. Penelitian dilakukan dengan variasi ukuran venturi karburator 26,3 mm, 27,8 mm dan 28,8 mm dengan putaran mesin 4000 rpm (54 km/jam) dan bahan bakar premium. Pengujian dilakukan dengan mengukur dan mencatat waktu dari konsumsi bahan bakar, kemudian menganalisa venturi standart, perbesaran dan pengecilan diameter venturi. Adapun hasil dari setiap diameter venturi karburator terhadap konsumsi bahan bakar adalah masing-masing venturi 26,3 mm adalah 8,48 menit, pada venturi 27,8 mm (standart) adalah 7,14 menit dan pada venturi 28,8 mm adalah 6,15 menit. Sehingga pengecilan diameter venturi karburator dapat mengurangi konsumsi bahan bakar 18,77% tanpa mengurangi kinerja/performa kendaraan.
Co-Authors Kurnia Dwi Artika Suprihatin, Mohammad Yani, dan Dewi Ratnasari