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All Journal Rekayasa Mesin Journal of Applied Agricultural Science and Technology
Rahayuningtyas , Ari
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Agriculture, Biological Sciences & Forestry Mechanical Engineering

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Development of Flat Burr Coffee Grinding Machine for Small and Medium Enterprises Scale Warandi, Rofandi Rori Aditiar; Furqon , Maulana; Gandara, Dadang; Yudhi, Taufik; Rosadi, Ade; Santoso, Santoso; Setyawan, Azis Budi; Noor, Subardiya; Samsu, Samsu; Rahayuningtyas , Ari
Journal of Applied Agricultural Science and Technology Vol. 8 No. 4 (2024): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jaast.v8i4.290

Abstract

This study was conducted to develop an improved coffee grinder tailored for small and medium enterprises (SMEs) to address challenges due to limited resources. The development phase included a broad description, sizing, defining main components, developing technical drawings, manufacturing, and conducting functional tests. The machine had an overall dimension of 743 mm in length, 367 mm in width, and 580 mm in height. It was powered by a 1 HP induction motor with a rotation speed of 1400 rotations per minute (RPM) and a shaft diameter of 19 mm. The prototype achieved a grinding capacity of 23.8 kg/h for acceptable coffee grounds while maintaining a constant grind size, essential for achieving the best flavor and aroma. However, the noise level reached 86.5 dB, requiring hearing protection for prolonged usage. Future investigations should focus on exploring alternative materials and developing noise mitigation strategies, as noise reduction efforts can enhance operator physical and mental health in the coffee production process.
DESIGN AND ANALYSIS OF AN AXIAL FLUX PERMANENT MAGNET GENERATORS WIND TURBINE FOR AUTOMATIC STACKING CRANES Maharani, Aisyah Aira Putri; Wahid, Muhamad Rizalul; Gianti, Mahmudah Salwa; Mulya, Tri Seda; Rahayuningtyas , Ari
Jurnal Rekayasa Mesin Vol. 16 No. 1 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v16i1.1984

Abstract

Automatic Stacking Cranes are indispensable tools in modern ports that can transfer containers between the landside and the waterside. These cranes are powered by electricity and consume significant amounts of energy to meet annual production demands. This substantial electricity consumption often strains the port's power grid during voltage and current fluctuations, which can destabilize the ASC's power supply. Wind turbines offer a promising alternative energy source to address these problems. This study delves into the analysis of the optimal Axial Flux Generator structure for wind turbines and calculates the associated energy losses to determine the feasibility of a wind turbine system capable of supporting the ASC's power demands. The findings reveal that employing an AFG-based wind turbine can generate the required 88,497 Watts of power for the ASC, with an average rotational speed of 1,655 rpm. This represents an annual electricity cost saving for the port of approximately 39,701,029 Rupiah.
Co-Authors Furqon , Maulana Gandara, Dadang Gianti, Mahmudah Salwa Maharani, Aisyah Aira Putri Mulya, Tri Seda Noor, Subardiya Rosadi, Ade Samsu Samsu SANTOSO SANTOSO Setyawan, Azis Budi Wahid, Muhamad Rizalul Warandi, Rofandi Rori Aditiar Yudhi, Taufik