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Azwinur
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Control & Systems Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Design and manufacture of coconut shell charcoal crusher for briquette Azwinur; Andi Gilang Wira Pratama; Zaini
Journal of Mechanical Engineering and Fabrication Vol. 1 No. 1 (2024): Maret
Publisher : Journal of Mechafa Engineering and Fabrication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64273/jmef.v1i1.5

Abstract

Coconut shell waste in the community is often not utilized, so a solution is needed, one of which is by processing it into briquettes. Charcoal briquettes are solid fuels that contain carbon, have high calorific value, and can burn for a long time. These briquettes are made from organic waste, such as dry leaves, coconut shells, rice husks, and sawdust. The purpose of this study was to design a coconut shell charcoal crusher as a raw material for briquettes, with the hope of reducing coconut shell waste, increasing its economic value, and providing an alternative fuel for household needs. The process of making the tool begins with frame design, iron cutting, welding using the SMAW method, assembly, and finishing. The results of the study showed that the results of making a coconut shell charcoal crusher for briquette raw materials can function well. The distribution of the resulting size shows that the machine has a consistent ability to produce fine particle sizes, which are in accordance with the needs of briquette raw materials. The efficiency of time per kilogram of material processed tends to vary depending on the capacity used
Fabrication and performance testing of direct flow heat exchanger using baffle and without baffle Azwinur; Darussalam Bahri; Al Fathier
Journal of Mechanical Engineering and Fabrication Vol. 1 No. 1 (2024): Maret
Publisher : Journal of Mechafa Engineering and Fabrication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64273/jmef.v1i1.6

Abstract

Heat Exchangers atau alat penukar/pemindah panas adalah alat-alat yang digunakan untuk mengubah temperatur fluida atau mengubah fasa fluida dengan cara mempertukarkan panasnya dengan fluida lain. Pada sebuah penukar panas, kemampuan mempertukarkan panas sangat ditentukan oleh jenis aliran fluida dan fluida yang melewati penukar panas. Tujuan penelitian untuk mengukur dan menganalisis peningkatan koefisien perpindahan panas dengan adanya baffle dibandingkan dengan heat exchanger tanpa baffle. Metode penelitian yang dilakukan adalah dengan fabrikasi alat heat exchanger menggunakan proses las SMAW, hasil pengelasan dilakukan inspeksi secara visual untuk mendeteksi cacat pengelasan pada sambungan. Hasil pemeriksaan tidak ditemukan cacat las. Berdasarkan data pengujian didapatkan data inlet fresh air dan outlet fresh air temperature dan velocity tanpa menggunakan baffle 33.30C  menjadi 47,1oC pada kecepatan 3,19 m/s – 3,26 m/s, inlet fresh air dan outlet fresh air temperature dan velocity menggunakan baffle 38,60C menjadi 53,30C pada kecepatan 2,27 m/s – 2,58 m/s dan sisi lain inlet fresh air dan outlet fresh air temperature dan velocity menggunakan baffle II  memiliki temperature 36,10C menjadi 50,30C pada velocity 2,27 m/s – 2,58 m/s
The effect of variation in E7018 electrode current on the bending strength of carbon steel material Azwinur; Muhammad Arga Syahandra; Saifuddin
Journal of Mechanical Engineering and Fabrication Vol. 1 No. 1 (2024): Maret
Publisher : Journal of Mechafa Engineering and Fabrication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64273/jmef.v1i1.7

Abstract

Welding is one of the essential metal joining methods in modern industry. In carbon steel welding such as ASTM A36, SMAW is often chosen because of its ability to produce strong joints with economical operating costs. However, the mechanical properties of the welded joints on this steel are greatly influenced by the welding process parameters, such as the type of electrode and the welding current setting. The purpose of this study was to evaluate the effect of variations in welding current with E7018 electrodes on the bending properties of ASTM A36 carbon steel material. The stages of the study were material welding, visual and penetrant non-destructive tests and bending tests. The results of the study showed that the best results were obtained on the cover side with a current of 110A, where the heat generated was sufficient to create a strong and flexible joint against deformation. While on the root pass side the highest bending value was at a current of 120A
Co-Authors Al Fathier Andi Gilang Wira Pratama Azwinur Azwinur Darussalam Bahri Muhammad Arga Syahandra Saifuddin