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Syamsul Maarif
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Jurnal Engine: Energi, Manufaktur, dan Material
Published by Universitas Proklamasi 45 Yogyakarta
ISSN : 25797433     EISSN : 25797433     DOI : http://dx.doi.org/10.30588/jeemm
Core Subject : Science, Engineering,
Control & Systems Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
Jurnal Engine: Energi, Manufaktur, dan Material is registered with ISSN 2579-7433 (online) on The Indonesian Institute of Sciences (LIPI). This journal is under publishment of the Mechanical Engineering Department, Universitas Proklamasi 45 Yogyakarta. It is a scientific journal focusing on Energy, Manufacturing, Material, Mechanical, and Software Simulation. It provides a publishing platform for scientists and academicians to share, publish, and discuss all aspects of the latest outstanding development in the field of Mechanical Engineering.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 12 Documents
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Search results for , issue "Vol. 9 No. 2 (2025)" : 12 Documents clear
Upaya Pengendalian Kualitas pada Proses Produksi Roti Tawar dengan Statistic Process Control (SPC) dan Failure Mode and Effects Analysis (FMEA) (Studi Kasus Pabrik Roti RV) Wahyudi, Rizqi; Vebriyanti, Ria
Jurnal Engine: Energi, Manufaktur, dan Material Vol. 9 No. 2 (2025)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v9i2.2170

Abstract

RV Bakery faces challenges in maintaining product quality due to fluctuating defect rates, particularly in white bread production. This issue has the potential to undermine customer trust and result in market losses. This study aims to analyse defect levels, identify the root causes of defects, and develop corrective solutions to reduce product defects. The methods employed include Statistical Process Control (SPC) to statistically monitor production process variations and Failure Modes and Effects Analysis (FMEA) to prioritize corrective actions based on Risk Priority Number (RPN) values. The 5W+1H approach was used to formulate improvement steps. The analysis results revealed that burnt defects dominated at 78% compared to collapsed defects at 22%. Through control charts, it was found that burnt defects exceeded the Upper Control Limit (UCL) at two points, specifically on October 15 and 17, 2024. The root causes of defects were identified using a cause-and-effect diagram, encompassing human, material, machine, and method factors. Corrective measures included adjusting baking time using timers, utilizing thermometers to ensure stable oven temperatures, and implementing stricter Standard Operating Procedures (SOP). The implementation of these improvements significantly reduced the number of defective products, with defect rates consistently remaining within control limits.
Analisis Perkembangan Artificial Photosynthesis dengan Metode Bibliometrik Database Scopus Eikel Kanaya; Ahmad Meiza; Akbar Haryo Wicaksono; Mathias Nobel; Alif Safril; Nasywa Callista
Jurnal Engine: Energi, Manufaktur, dan Material Vol. 9 No. 2 (2025)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v9i2.2176

Abstract

Artificial photosynthesis is one of the innovative technologies that mimics the natural photosynthesis process, aiming to convert solar energy into chemical energy that can be utilized as clean fuel. This innovative technology is regarded as a potential solution to address the energy crisis and climate change caused by high carbon dioxide (CO₂) emissions. Although artificial photosynthesis shows remarkable progress as a future energy solution, to date there has been no comprehensive bibliometric study to map the direction and potential of research in this field, hence, this study was conducted to fill the research gap. This study aims to analyze the development of research in artificial photosynthesis as a sustainable energy solution through a bibliometric approach based on the Scopus database for the period 2004–2024. The study utilized Biblioshiny and VOSviewer software, followed by analysis of publication trends, international collaborations, main keywords, institutional affiliations, as well as author impact based on the H-Index. The results of this study reveal a significant increase in the number of publications with an average annual growth of 5.37%. China, the United States, and Japan are recorded as the most active countries in publishing and collaborating research on artificial photosynthesis. This study also identifies dominant keywords and thematic trends reflecting research focuses on renewable energy, catalyst technology, and CO₂ emission reduction. The findings of this study are expected to serve as a strategic reference for the development of further research in the field of clean energy based on artificial photosynthesis.    
Pengaruh Penggunaan Koil Aftermarket terhadap Kinerja Mesin Pembakaran Internal dengan Variasi Nilai Oktan Bahan Bakar Kristian Hubra Kadu; Yosua Heru Irawan; Dandung Rudy Hartana; Aris Warsita
Jurnal Engine: Energi, Manufaktur, dan Material Vol. 9 No. 2 (2025)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v9i2.2180

Abstract

Penelitian ini bertujuan untuk menganalisis pengaruh penggunaan koil aftermarket terhadap kinerja mesin pembakaran internal dengan variasi nilai oktan bahan bakar. Pengujian dilakukan pada sepeda motor Yamaha Vixion 150 cc menggunakan koil standar dan koil aftermarket dengan tiga jenis bahan bakar, yaitu oktan 90, 92, dan 98. Parameter yang diukur meliputi daya, torsi, dan konsumsi bahan bakar spesifik (SFC). Hasil penelitian menunjukkan bahwa koil aftermarket menghasilkan daya tertinggi sebesar 16.6 HP pada putaran 9232 rpm dengan bahan bakar oktan 98, sementara koil standar mencapai daya maksimal sebesar 16.1 HP. Torsi tertinggi yang dihasilkan oleh koil aftermarket sebesar 14.47 N.m dengan bahan bakar oktan 92. Penggunaan koil aftermarket cenderung meningkatkan daya dan torsi, namun juga menyebabkan kenaikan konsumsi bahan bakar dibandingkan koil standar. Penelitian ini memberikan wawasan tentang optimalisasi performa mesin melalui modifikasi koil pengapian dan pemilihan bahan bakar yang sesuai.
Analisis Kinerja Dehydrator Berbahan Bakar Briket Kayu dalam Pengeringan Daun Salam (Eugenia polyantha) Rizkia Rahmawati; Muhammad Nasiruddin; Ahmad Egy Mursalin; Mahmud Yasin; Muji Juherwin
Jurnal Engine: Energi, Manufaktur, dan Material Vol. 9 No. 2 (2025)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v9i2.2184

Abstract

Drying is an essential method for preserving food materials to extend shelf life and maintain product quality. This study aims to analyze the performance of a wood briquette-fueled dehydrator in drying bay leaves (Eugenia polyantha). The research focuses on the effect of the quantity of wood briquettes on temperature stability, drying duration, and product quality. The results indicate that the amount of wood briquettes significantly affects the maximum temperature achieved, with the highest temperature recorded at 70.69°C over 8 hours. The wood briquette-fueled dehydrator effectively reduced the moisture content of bay leaves by more than 60%, producing a dried texture suitable for long-term storage, particularly within a drying duration of 6–8 hours at an optimal temperature range of 40–60°C. Furthermore, the use of wood briquettes as a renewable energy source provided even heat distribution and reduced dependence on fossil fuels, making it an energy-efficient and environmentally friendly solution.
Metode Peningkatan Kekuatan Lentur Material Komposit Resin Polyester yang diberi Penguat Serat Bambu Nusyirwan; Mutya Rani; Muhammad Surya
Jurnal Engine: Energi, Manufaktur, dan Material Vol. 9 No. 2 (2025)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v9i2.2213

Abstract

One of the polymer materials widely used as a matrix material in the manufacture of composites is unsaturated polyester, which is widely used in engineering fields such as ships, vehicles and also widely used in engineering fields in general. This polyester material for direct use in the construction field still has low mechanical strength and cannot experience good tensile deformation, and is difficult to experience bending loads and can break if it gets a large amount of flexibility. To increase its bending strength, this polyester material is mixed with reinforcing material from bamboo fibre material, which is first refined with various percentages of the mixture ranging from 10% to 30%. After mixing, flexural testing is carried out by applying a flexural load in the middle of the test sample and both ends of the sample are supported with flexural strength that increases along with the resistance of the test material. From the research for flexural testing, it was found that a polyester polymer mixed with bamboo fiber with a percentage of 20% obtained a maximum flexural stress value of σ = 97.35 MPa. When compared with the value of the pure polyester flexural stress of σ = 37.29 MPa, there was an increase in flexural strength of 261.16%. 
Proximate Analysis of Rice Husk Waste Briquettes and Dried Leaves as Alternative Fuel Syaiful Mansyur; Andri Prasetyo Nugroho
Jurnal Engine: Energi, Manufaktur, dan Material Vol. 9 No. 2 (2025)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v9i2.2310

Abstract

One of the uses of rice husk waste is to make it into fuel, not only to replace firewood as fuel for cooking in the household but also to grill various types of food tailored to its application. Then, to optimize rice husk into fuel, it needs to be compacted or densified into charcoal briquettes, because with a good densification process, the calorific value of rice husk can be higher than before it is compacted. Densification of biomass or other solid fuels can increase the energy density, making it more efficient as an energy source. In this study, an experimental analysis process was carried out to optimize the briquette-making process so that it could improve combustion efficiency and quality according to Indonesia standards. The results showed that the addition of dry leaf charcoal to make briquettes of a mixture of rice husks and leaves significantly, with a value of F = 0.0346, can increase the calorific value of briquettes according to Indonesian Standards. For proximate test values of water content and volatile content, significant values of 0.039 and 0.012 were obtained, respectively, so these results show the effect of adding dry leaves and reducing the percentage of husk charcoal significantly. While other test results, namely the value of ash content and bound carbon, did not have a significant effect both when adding leaf charcoal and reducing husk charcoal with a significance value of 0.21 and 0.054, respectively, this is because husk charcoal has silica, which can increase ash content, and the physical structure of the two materials is less dense.
Perancangan Sistem Smart Grid Dinamis Berbasis Internet of Things (IoT) untuk Optimasi Distribusi Beban Listrik Chiesa Virgiawan Pasya; Aan Burhanuddin; Agus Mukhtar
Jurnal Engine: Energi, Manufaktur, dan Material Vol. 9 No. 2 (2025)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v9i2.2420

Abstract

The rapid increase in electricity demand, driven by population growth and industrialization, leads to imbalances in load distribution in conventional power systems. Traditional grids, designed for one-way energy flow, are unable to respond to real-time load fluctuations, resulting in outages and reduced operational efficiency. This research aims to design a dynamic IoT-based smart grid system for optimizing electricity load distribution efficiently. The methodology involves the development of an integrated system architecture with sensors to measure voltage, current, and frequency, along with an IoT-based load management algorithm to automatically regulate energy flow. Testing results show that the PZEM-004t and ACS712 sensors provide highly accurate readings with minimal deviation compared to conventional measurement tools. Additionally, the integration of solar panels (PLTS) in the system showed increased utilization of renewable energy, although PLN still dominated. The findings indicate that an IoT-based smart grid can optimize load distribution and improve energy efficiency by reducing reliance on conventional electricity while supporting the use of renewable energy
Prototype Listrik Tenaga Pikohidro (PPT 1.0) untuk Alat Bantu Identifikasi Potensi dan Praktikum Mahasiswa Energi Masrur Alatas; Ucik Ika Fenti Styana; Dimas Taufiq Ridlo; Fifin Hindarti; Adi Kurniawan
Jurnal Engine: Energi, Manufaktur, dan Material Vol. 9 No. 2 (2025)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v9i2.2422

Abstract

Indonesia's energy needs continue to rise, while its fossil fuel resources are limited. The national energy mix for renewable energy programs is planned to reach 31% by 2030. Indonesia's pico-hydro potential is substantial, found in mountainous areas, rural areas, suburbs, and islands. Potential is also found in primary, secondary, and tertiary irrigation areas, small rivers, waterfalls, pond circulation, and even in rainwater gutters. The research method for identifying potential in the field used a Portable Pico-hydro Turbine (PPT 1.0) with direct testing and student laboratory experiments. The results of the pico-hydro prototype study can be used to identify 26 potential pico-hydro points, which can function as 100-watt street lighting and support student energy laboratory equipment.
The Simulation of Radiation Shielding Made of Portland Material in a 230 MeV 300 NA Cyclotron Room for Proton Therapy Facility Using PHITS Code System Damar Adhiwidya Suyanto; Aditya Tri Oktaviana; Yohannes Sardjono; Gede Sutresna Wijaya; Isman Mulyadi Triatmoko
Jurnal Engine: Energi, Manufaktur, dan Material Vol. 9 No. 2 (2025)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v9i2.2339

Abstract

This study investigates the effectiveness of radiation shielding made from Portland material in a 230 MeV, 300 NA cyclotron room for a proton therapy facility. Proton therapy is an advanced treatment method for cancer that uses protons to irradiate tumors with high precision. However, the high energy of protons requires effective shielding to protect the surrounding environment and personnel from radiation exposure. In this research, the radiation shielding performance of Portland material was evaluated using the PHITS (Particle and Heavy Ion Transport System) version 3.351 simulation software. The study focuses on assessing the attenuation of radiation within the cyclotron room under various operational conditions. The results from PHITS simulations provide insights into the potential of Portland material in reducing radiation levels in proton therapy rooms, contributing to the safety and efficiency of such facilities. This analysis is essential for optimizing shielding design.
Teknologi dan Karakterisasi dalam Proses Produksi Arang Sekam Padi untuk Berbagai Aplikasi: Tinjauan Pustaka Muhamad Muhajir; Adhielia Noer Syaief; Pratama Yoga Wica
Jurnal Engine: Energi, Manufaktur, dan Material Vol. 9 No. 2 (2025)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v9i2.2356

Abstract

Sekam padi merupakan limbah pertanian yang melimpah dengan potensi tinggi untuk diolah menjadi arang (biochar) melalui pirolisis sebagai bagian dari strategi pengelolaan biomassa berkelanjutan. Studi ini bertujuan untuk meninjau secara komprehensif teknologi dan karakterisasi yang terlibat dalam produksi arang sekam padi, serta mengevaluasi aplikasinya di berbagai sektor. Tinjauan ini dilakukan dengan pendekatan naratif, menganalisis literatur ilmiah terkini (2019–2024) yang relevan dengan sistem pirolisis berbasis tungku kisi miring dan metode karakterisasi biochar, seperti morfologi, kristalinitas, dan analisis gugus fungsi. Hasil penelitian menunjukkan bahwa sistem tungku kisi miring memberikan kontrol termal yang optimal, menghasilkan biochar berkualitas tinggi dengan struktur pori yang berkembang baik, stabilitas karbon yang baik, dan potensi tinggi untuk adsorpsi dan retensi hara. Biochar yang berasal dari sekam padi juga terbukti efektif sebagai amandemen tanah, penyerap polutan, penopang katalis, aditif semen, dan bahan bakar alternatif. Karakteristik ini sangat dipengaruhi oleh parameter proses dan desain reaktor. Temuan ini menggarisbawahi pentingnya pendekatan interdisipliner dalam mengoptimalkan teknologi biomassa. Studi ini berkontribusi pada pengembangan strategi produksi biochar yang lebih efisien dan menyediakan dasar untuk penelitian lebih lanjut tentang stabilitas jangka panjang dan dampak lingkungan dari penerapannya.

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