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All Journal Info-Teknik Turbo : Jurnal Program Studi Teknik Mesin Civil and Environmental Science Journal (CIVENSE) Jurnal Elemen Jurnal IMPACT: Implementation and Action International Journal of Education, Science, Technology, and Engineering (IJESTE) Scientific Journal of Mechanical Engineering Kinematika JTAM ROTARY International Journal of Mechanical Engineering Technologies and Applications (MECHTA) Jernih : Jurnal Tugas Akhir Mahasiswa
Akhmad Syarief
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Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Other

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Experimental Study of Updraft Gasification of Rice Husk and Coal to Produce Syngas Nugroho, Fiqrei Akbar; Syarief, Akhmad; Mikhael, Allexyus; Supit, Geovani Glen
International Journal of Mechanical Engineering Technologies and Applications Vol. 2 No. 2 (2021)
Publisher : Mechanical Engineering Department, Engineering Faculty, Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/MECHTA.2021.002.02.4

Abstract

Limited resource of fossil fuel inspires many research activities to search for alternative energy. This work offers alternative solution to address this problem through charcoal gasification. The goal of this research is to find the amount of syngas produced in the gasification is process. The alternative fuel was produced from the mixing rice husk and low quality coal due to their abundant resource in South Kalimantan. The mixture was then gasified at 500 °C. The highest syngas volume at 29.56 L was in the sample of SP 200 gr and BB 0 then followed at 25.7 L for ratio SP 180 gr : BB 20 gr. The lowest produced syngas 19.45 was produced from the sample with ratio SP 100 gr : BB 100 gr. This gasification process also resulted in side product, i.e. tar component which varies from 22.5 mL to 58.75 mL.
Influence of Mixture Composition and Compaction Pressure of Briquette Made from Ironwood (Eusideroxylon Zwageri) Charcoal and Gelam (Melaleuca Cajuputi ) on Combustion Characteristic Syarief, Akhmad; Awaly, Nuryasin Qadimil; Yusuf, Muhammad; Iberahim, Jerry
International Journal of Mechanical Engineering Technologies and Applications Vol. 2 No. 2 (2021)
Publisher : Mechanical Engineering Department, Engineering Faculty, Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/MECHTA.2021.002.02.6

Abstract

In recent few years, many works have been dedicated to search for new source of renewable energy. In this study, new source of renewable energy is based in the briquette made from mixture of ironwood (Eusideroxylon zwageri) powder and gelam (Melaleuca leucadendron) wood powder. The mixture was carbonized at temperature of 500 oC ± 10 oC for 120 minutes. The size of the particles used was 50 mesh while the ratio between wood powder adhesives, i.e. starch powder, used in the study was 1:1. The composition variations between ironwood charcoal and gelam were 100% ironwood charcoal powder and 0% gelam, 70%: 30%, 50%: 50%, 30%: 70%, 0% ironwood: 100% gelam. The compaction pressure during briquette production was varied at 100 kg/cm2, 125 kg/cm2 and 150 kg/cm2.  The highest combustion temperature at 205 oC occurred in the specimen with composition of 30% ironwood powder and 70% gelam wood powder with compaction pressure of 100 kg/cm2. The longest burning duration 140 minutes (2 hours 20 minutes) occurred at composition of 50% ironwood powder and 50% gelam wood powder at compaction pressure of 150 kg/cm2. The fastest initial ignition time was 7 minutes and occurred for mixture with composition of 70% ironwood powder and 30% gelam wood powder at compaction pressure of 125 kg/cm2.
Effect of Compaction Pressure and Sawdust Size on Briquette Made from Ulin Wood (Eusideroxylon Zwageri) and Gelam Wood (Melaleuca Cajuputi) to Combustion Characteristics Pratama, Bagus Harits; Syarief, Akhmad; Saputra, M. Reynaldi Perdana; Azis, Alif Putra
International Journal of Mechanical Engineering Technologies and Applications Vol. 3 No. 2 (2022)
Publisher : Mechanical Engineering Department, Engineering Faculty, Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/MECHTA.2022.003.02.4

Abstract

In Kalimantan, gelam (Melaleuca cajuputi)  grows naturally in the swamp forest reaching 40 m with a diameter around 35 cm. Gelam wood is very resistant to acid soil in the swamp forest. Despite of it’s small diameter, gelam wood is very strong. This wood is usually used as the main house, as mold or mall support in casting concrete. Ulin (Eusideroxylon zwageri) is a typical plant of Kalimantan. In this study, the ignition duration, burning speed, and ash weight from briquette made from mixture of ulin and gelam sawdust was investigated. Size of sawdust used for briquette was varied for 40, 50, and 60 mesh while compaction pressure during briquette production was varied for 100, 125 and 150 kg/cm2. The study shows that the highest combustion temperature at 178 oC occurred for briquette with compaction pressure of 150 kg/cm2. Meanwhile, the lowest combustion temperature was obtained in briquette witch compaction pressure of 100 kg/cm2.
Experimental Study of Updraft Gasification of Rice Husk and Coal to Produce Syngas Nugroho, Fiqrei Akbar; Syarief, Akhmad; Mikhael, Allexyus; Supit, Geovani Glen
International Journal of Mechanical Engineering Technologies and Applications Vol. 2 No. 2 (2021)
Publisher : Mechanical Engineering Department, Engineering Faculty, Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/MECHTA.2021.002.02.4

Abstract

Limited resource of fossil fuel inspires many research activities to search for alternative energy. This work offers alternative solution to address this problem through charcoal gasification. The goal of this research is to find the amount of syngas produced in the gasification is process. The alternative fuel was produced from the mixing rice husk and low quality coal due to their abundant resource in South Kalimantan. The mixture was then gasified at 500 °C. The highest syngas volume at 29.56 L was in the sample of SP 200 gr and BB 0 then followed at 25.7 L for ratio SP 180 gr : BB 20 gr. The lowest produced syngas 19.45 was produced from the sample with ratio SP 100 gr : BB 100 gr. This gasification process also resulted in side product, i.e. tar component which varies from 22.5 mL to 58.75 mL.
Influence of Mixture Composition and Compaction Pressure of Briquette Made from Ironwood (Eusideroxylon Zwageri) Charcoal and Gelam (Melaleuca Cajuputi ) on Combustion Characteristic Syarief, Akhmad; Awaly, Nuryasin Qadimil; Yusuf, Muhammad; Iberahim, Jerry
International Journal of Mechanical Engineering Technologies and Applications Vol. 2 No. 2 (2021)
Publisher : Mechanical Engineering Department, Engineering Faculty, Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/MECHTA.2021.002.02.6

Abstract

In recent few years, many works have been dedicated to search for new source of renewable energy. In this study, new source of renewable energy is based in the briquette made from mixture of ironwood (Eusideroxylon zwageri) powder and gelam (Melaleuca leucadendron) wood powder. The mixture was carbonized at temperature of 500 oC ± 10 oC for 120 minutes. The size of the particles used was 50 mesh while the ratio between wood powder adhesives, i.e. starch powder, used in the study was 1:1. The composition variations between ironwood charcoal and gelam were 100% ironwood charcoal powder and 0% gelam, 70%: 30%, 50%: 50%, 30%: 70%, 0% ironwood: 100% gelam. The compaction pressure during briquette production was varied at 100 kg/cm2, 125 kg/cm2 and 150 kg/cm2.  The highest combustion temperature at 205 oC occurred in the specimen with composition of 30% ironwood powder and 70% gelam wood powder with compaction pressure of 100 kg/cm2. The longest burning duration 140 minutes (2 hours 20 minutes) occurred at composition of 50% ironwood powder and 50% gelam wood powder at compaction pressure of 150 kg/cm2. The fastest initial ignition time was 7 minutes and occurred for mixture with composition of 70% ironwood powder and 30% gelam wood powder at compaction pressure of 125 kg/cm2.
Effect of Compaction Pressure and Sawdust Size on Briquette Made from Ulin Wood (Eusideroxylon Zwageri) and Gelam Wood (Melaleuca Cajuputi) to Combustion Characteristics Pratama, Bagus Harits; Syarief, Akhmad; Saputra, M. Reynaldi Perdana; Azis, Alif Putra
International Journal of Mechanical Engineering Technologies and Applications Vol. 3 No. 2 (2022)
Publisher : Mechanical Engineering Department, Engineering Faculty, Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/MECHTA.2022.003.02.4

Abstract

In Kalimantan, gelam (Melaleuca cajuputi)  grows naturally in the swamp forest reaching 40 m with a diameter around 35 cm. Gelam wood is very resistant to acid soil in the swamp forest. Despite of it’s small diameter, gelam wood is very strong. This wood is usually used as the main house, as mold or mall support in casting concrete. Ulin (Eusideroxylon zwageri) is a typical plant of Kalimantan. In this study, the ignition duration, burning speed, and ash weight from briquette made from mixture of ulin and gelam sawdust was investigated. Size of sawdust used for briquette was varied for 40, 50, and 60 mesh while compaction pressure during briquette production was varied for 100, 125 and 150 kg/cm2. The study shows that the highest combustion temperature at 178 oC occurred for briquette with compaction pressure of 150 kg/cm2. Meanwhile, the lowest combustion temperature was obtained in briquette witch compaction pressure of 100 kg/cm2.
Analisa Pengaruh Metode Pengurangan Kadar Air terhadap Kualitas Pemipilan Jagung menggunakan Mesin Pemipil Type Spiral Rotary Aswar, Aswar; Parekke, Simon; Ristiawan, Ichsan; Arifin, Zulkarnain; Fathirahman, Muhammad; Shopie, Dwilma; Surono, Bambang; Syarief, Akhmad
TURBO [Tulisan Riset Berbasis Online] Vol 14, No 2 (2025): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v14i2.4539

Abstract

Penelitian ini bertujuan untuk menganalisis pengaruh pengurangan kadar air terhadap kualitas pemipilan jagung menggunakan mesin pemipil tipe spiral rotary. Jagung hibrida Bima 9 diuji dengan empat perlakuan pengeringan yang berbeda, yaitu tanpa pengeringan (S0), dijemur selama 8 jam (S1), dioven selama 1 jam pada suhu 90°C (S2), dan dioven selama 2 jam pada suhu 90°C (S3). Sampel jagung dipipil menggunakan mesin pemipil tipe spiral rotary, dan hasil pemipilan dianalisis berdasarkan efisiensi mesin, kualitas pemipilan, dan kerusakan biji. Hasil penelitian menunjukkan bahwa pengurangan kadar air meningkatkan efisiensi mesin dan kualitas pemipilan, dengan kadar air 18.3% (S3) menghasilkan rata-rata efisiensi mesin tertinggi sebesar 85% dan pemipilan yang bersih, meskipun dengan sedikit kerusakan pada biji. Kadar air yang lebih tinggi, seperti pada S1 (24.4%), menghasilkan efisiensi mesin yang rendah dan banyak biji yang tertinggal pada tongkol. Penelitian ini menyarankan bahwa kadar air optimal untuk pemipilan jagung menggunakan mesin pemipil spiral rotary adalah sekitar 18–22%. Temuan ini memberikan kontribusi dalam meningkatkan efisiensi pemipilan jagung di industri pengolahan pakan ternak.
PERANCANGAN MESIN PENGOLAH SERAT DAUN NANAS (ANANAS COMOSUS L) Syarief, Akhmad; Sukoco, Krisna Enos
JTAM ROTARY Vol 8, No 1 (2026): JTAM ROTARY
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jtam_rotary.v8i1.18208

Abstract

Pengolahan serat daun nanas masih didominasi oleh metode manual sehingga kurang efisien dari segi waktu dan kapasitas produksi. Penelitian ini bertujuan untuk merancang mesin pengolah serat daun nanas (Ananas comosus L.) serta mengevaluasi kelayakan mekanisnya melalui perhitungan analitik dan simulasi metode elemen hingga (Finite Element Analysis/FEA). Komponen utama yang dirancang meliputi motor listrik, sistem transmisi V-belt dan pulley, poros, mata pisau, serta rangka mesin. Mesin menggunakan motor berdaya 1,5 kW dengan putaran 1450 rpm yang menghasilkan putaran poros sebesar 614 rpm. Hasil simulasi menunjukkan bahwa tegangan Von Mises maksimum pada poros sebesar 10,2 MPa dengan perpindahan 0,004 mm dan faktor keamanan 5,19. Pada rangka, tegangan maksimum sebesar 9,66 MPa dengan perpindahan 0,150 mm yang menunjukkan kestabilan struktur yang baik. Mesin memiliki kapasitas pengolahan sebesar 17,5 kg/jam dengan 12 mata pisau. Hasil ini menunjukkan bahwa mesin yang dirancang memenuhi kriteria kekuatan dan keamanan serta layak secara teknis untuk meningkatkan efisiensi pengolahan serat daun nanas. The processing of pineapple leaf fibers is predominantly carried out manually, resulting in low efficiency in terms of processing time and production capacity. This study aims to design a pineapple leaf fiber processing machine (Ananas comosus L.) and evaluate its structural feasibility using analytical calculations and finite element analysis (FEA). The design includes key components such as an electric motor, V-belt and pulley transmission system, shaft, cutting blades, and supporting frame. The machine utilizes a 1.5 kW motor operating at 1450 rpm, producing a shaft speed of 614 rpm. Simulation results show that the maximum Von Mises stress on the shaft is 10.2 MPa with a displacement of 0.004 mm and a safety factor of 5.19. The frame exhibits a maximum stress of 9.66 MPa and a displacement of 0.150 mm, indicating adequate structural stability. The machine achieves a processing capacity of 17.5 kg/h using 12 cutting blades. These results confirm that the designed machine meets mechanical safety criteria and is technically feasible to improve the efficiency of pineapple leaf fiber processing.
Co-Authors Achmad Febrian Hidayat Aditya Eko Kristanto Akhmad Ghiffary Budianto Akhmad Robittah Andy Nugraha Arifin, Zulkarnain Aswar Aswar Atmana, Fendy Ari Aufa Ramadhasari, Aulia Awaly, Nuryasin Qadimil Azis, Alif Putra Bayu Setiawan Chairul Abdi Dali Dali Fadilah, Aris Fadliyanur Fadliyanur, Fadliyanur Fathirahman, Muhammad Fauzi, Dimas Habib Geovani Glen Supit Gunawan Rudi Cahyono Iberahim, Jerry Ma'ruf, Ma'ruf Miftach Secha Mikhael, Allexyus Muhammad Nizar Ramadhan Muhammad Wal Mursalin Muhammad Yusuf Mulgi, M Abdul Nugroho, Fiqrei Akbar Nugroho, Wisnu Setyo Parekke, Simon Pathur Razi Ansyah Pratama, Bagus Harits Raliannoor Ralianoor Ramadhasari, Aulia Aufa Ristiawan, Ichsan Saputra, M. Reynaldi Perdana Shopie, Dwilma Sukoco, Krisna Enos Supit, Geovani Glen Surono, Bambang Suryanta, Dhanu Tumanggor, Agustina Hotma Uli Zuhri Simanjuntak, Rinal Fadel