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All Journal Jurnal Silvikultur Tropika (JST) Jurnal Teknik Mesin Reaktor Prosiding Semnastek Jurnal Energi dan Lingkungan (Enerlink) Indonesian Journal of Computing, Engineering, and Design Makara Journal of Technology
Yulianto Sulistyo Nugroho
Departemen Teknik Mesin, Fakultas Teknik Universitas Indonesia Kampus UI Depok, Depok 16424
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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Journal : Makara Journal of Technology

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Kinetic Modeling Study of Laminar Burning Velocity of Gasoline–Ethanol–Methanol Blends at Elevated Temperature and Pressure Auzani, Ahmad Syihan; Wibowo, Cahyo Setyo; Anggarani, Riesta; Nugroho, Yulianto Sulistyo; Sugiarto, Bambang
Makara Journal of Technology Vol. 25, No. 2
Publisher : UI Scholars Hub

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Gasoline–ethanol–methanol (GEM) blends have been considered to replace pure gasoline as spark ignition engine fuel. Their physical and chemical properties and performance and emission measurements from real engines have been reported previously. However, a fundamental study that can explain the unique results of GEM compared with those of pure gasoline is lacking. This study aims to compare the laminar burning velocity of GEM blends at different mixtures, equivalence ratios, temperatures, and pressures with that of pure gasoline. A laminar flame propagation model and reaction mechanisms from the literature were were for a numerical simulation. In this study, the chemical components of real gasoline are simplified using a binary surrogate mixture. Results show that the laminar burning velocity of the GEM increased with the increase in temperature, ethanol, and methanol concentration, and it decreased with the increase in pressure. Sensitive reactions to laminar burning velocity are presented through a sensitivity analysis.
Self-ignition Properties of Peat, Palm Shell Fibre and Woods Nugroho, Yulianto Sulistyo
Makara Journal of Technology Vol. 6, No. 3
Publisher : UI Scholars Hub

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Self-ignition properties of peat, palm shell fibre and woods. Forest fire is one of the greatest environmental problems faced by Indonesia. Forest fires have destroyed million hectares of forest and land which cause economic loss, social problems including smoke related diseases and environmental disaster with long time consequences. The exothermic reactions of forest fuels that lead to fire can be initiated by a piloted flame and low-temperature oxidation mechanism. This paper presents the results of low temperature oxidation studies using forests fuel samples i.e. palm shell fibre, peat, woods and low-rank coal. The measured values of the critical oven temperatures and the kinetic oxidation parameters are used to analyze the intrinsic properties of the samples to self-ignite. Thermal runaway reactions leading to ignition are indicated for all forest fuels tested. This reaction is affected by various factors including oven temperature, moisture content, chemical and physical properties as well as basket sizes. Attempt to extrapolate the results of these laboratoryscaled experiments for real fires still require further tests and assessments.
Co-Authors Adi Surjosatyo Adrianus Pangaribuan, Adrianus Almi Ramadhi Anggarani, Riesta Ati Dwi Nurhayati Auzani, Ahmad Syihan Bambang Sugiarto Cahyadi Cahyadi Cahyadi Cahyadi Dwika Budianto Dwika Budianto Eko Setianto Erianto Indra Putra Fadhil Fadhil, Fadhil Fajri Vidian Hery Prabowo I Made Kartika Dhiputra Kooshartoyo, Meddy Muhammmad Agung Santoso, Muhammmad Agung Pane, Invranza Zuhdi Purnomo, Dwi Marhaendro Jati Santoso, Muhammad Agung Sulistio Rizky Iskandar Thareq, Achmad Efrizal Verda Emmelinda Satyawan Wardana Wardana Wibowo, Cahyo Setyo Widodo Wahyu Purwanto Widodo Wahyu Purwanto Yulianto . Yuliusman Yuliusman