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All Journal Operations Research: International Conference Series JURNAL KEBANGSAAN REPUBLIK INDONESIA
Suryaman
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Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Industrial & Manufacturing Engineering Mathematics Social Sciences Other

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PENGUATAN KEBANGSAAN MELALUI PRODUK RANCANG BANGUN MESIN PENCACAH PLASTIK SINGLE SHAFT SKALA RUMAH TANGGA Kasyafullah, Muhammad Salik; Suryaman
JURNAL KEBANGSAAN RI Vol. 1 No. 1 (2023): JURNAL KEBANGSAAN RI
Publisher : LEMBAGA PUSAT KAJIAN KEBANGSAAN/PUSKAB UKRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31848/jkri.v1i1.3362

Abstract

The use of plastic as a packaging material and other equipment has caused environmental problems. The longer it accumulates, because plastic waste is not easily destroyed by rain and sun or microbes that live in the soil, this increasing environmental damage. In order to overcome this environmental problem, you can apply 3R (Reduce, Reuse, Recycle) by recycling plastic waste and reprocessing it into plastic ore or into plastic molding products. The purpose of this research is to produce a plastic shredder capable of chopping plastic waste according to the target to be achieved with a Shredder Machine design system with two edge cutters for cutting plastic waste, Solidworks is used to produce blade geometry and shape, blade material used is SS400 which has been carburized to make it stronger and more resilient, from the calculation process the plastic chopper obtained 0.45 Hp With a rotation of 47 RPM and a shaft diameter of 28 mm with a total of 14 Rotating Blades and 40 Silent Blades the production process obtained 62 kg/hour
Failure Mode and Effect Analysis (FMEA) for Improving the Efficiency of a Two Combustion Chamber Downdraft Gasification Stove Suryaman; Zakaria, Kiki; Yuningsih, Siti Hadiaty
Operations Research: International Conference Series Vol. 6 No. 2 (2025): Operations Research International Conference Series (ORICS), June 2025
Publisher : Indonesian Operations Research Association (IORA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47194/orics.v6i2.387

Abstract

The growing energy demand in areas lacking access to modern infrastructure drives the development of biomass-based thermal technologies, such as the dual-chamber downdraft gasification stove. This stove offers higher efficiency and lower emissions compared to direct combustion but still poses failure risks in various system components. This study aims to identify critical failure modes affecting the thermal efficiency of the stove through the Failure Mode and Effect Analysis (FMEA) approach. The analysis involved mapping the system's structure and functions, followed by evaluating failure modes using three parameters: Severity (S), Occurrence (O), and Detection (D) to obtain the Risk Priority Number (RPN). Results indicate the highest risk occurs in the combustion system (RPN 180), followed by the air control system (RPN 160). Key causes include suboptimal secondary air distribution and valve blockage. Other systems such as insulation, maintenance access, safety, and fabrication had lower RPNs but still require design and quality control improvements. Recommendations focus on improving airflow design, using high-temperature-resistant materials, and adopting precision fabrication procedures. Using the FMEA approach, the gasification stove can be enhanced in terms of reliability, efficiency, and user safety, making it more feasible as a small-scale renewable energy solution for communities.
Co-Authors Kasyafullah, Muhammad Salik Yuningsih, Siti Hadiaty Zakaria, Kiki