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R.E.M (Rekyasa Energi Manufaktur) Jurnal
Published by Universitas Muhammadiyah Sidoarjo
ISSN : 25275674     EISSN : 25283723     DOI : https://doi.org/10.21070/r.e.m
Core Subject : Engineering,
Engineering
Focus and Scope Aim: to facilitate scholar, researchers, and teachers for publishing the original articles of review articles. Scope: Mechanical Engineering include: Energy Conversion Renewable Energy Manufacturing Materials and Design Engineering Mechatronics
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 8 Documents
 1 
Search results for , issue "Vol 7 No 2 (2022): December" : 8 Documents clear
Aftermarket Wheels Numerical Simulation To Get Maximum Stress and Deformation Values Mulyadi Mulyadi; Akhmad Surya Wijianto; Iswanto
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 7 No 2 (2022): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/r.e.m.v7i2.1568

Abstract

The purpose of this research is to get wheels with offset variants of -15, +20, and +35 made of aluminum alloy with a maximum load of 690 kg. Autocad 2018 and Unigraphic NX 8 were used to create all three designs. The load was calculated using the SAE J2530 standard and simulated using the ANSYS Workbench 14.5 application's numerical simulation method. As a result, the car rim is designed with a spoke form that becomes steeper (Concave) as the offset decreases. Methods a) Dynamic Cornering Fatigue Test, b) Dynamic Radial Fatigue Test, and c) Impact test consecutively at offset -15 of a) 62.33 MPa, b) 111.61 MPa, and c) 1.58 mm can be used to obtain numerical simulation results. For offsets of +20 of 70.91 MPa, 75.75 MPa, and 1.6 mm. And a) 90.33 MPa, b) 78.13 MPa, c) 1.61 mm at offset +35.
The Hardness and Microstructure of a Mixture of Used Plastic Waste HDPE, PET and Iron Filings Wawan Trisnadi Putra; Aliyadi; Kuntang Winangun
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 7 No 2 (2022): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/r.e.m.v7i2.1636

Abstract

Plastik memegang peranan penting dalam kehidupan manusia, karena plastik merupakan salah satu bahan yang sering digunakan dalam kehidupan sehari-hari sebagai tempat makanan, botol minuman, dll. Plastik sering digunakan karena ringan, fleksibel, dan mudah dibentuk. Namun di era sekarang ini, plastik kini menjadi masalah baru karena menyebabkan sampah plastik membutuhkan waktu yang lama untuk terurai. Selain itu, sampah tidak hanya terkait dengan plastik, tetapi logam juga dapat menjadi limbah, seperti debu besi yang dihasilkan selama pemotongan dan pengeboran material besi. Dan solusi yang ditawarkan adalah dengan memanfaatkan seluruh limbah yang ada untuk dijadikan bahan baru berupa campuran plastik dan serbuk besi dengan metode pengepresan menggunakan panas/suhu, jenis plastik yang digunakan dalam penelitian ini adalah high density polyethylene, polyethylene terephthalate dan serbuk besi, kemudian komposisi pada kisaran HDPE 30% 50%, PET 30% 50% dan serbuk besi 10% 20% Made. Hasil persentase tersebut digunakan sebagai pedoman dalam pembuatan sampel, yang kemudian diuji kekerasan dan struktur mikronya. Setelah dilakukan pengujian nilai kekerasan tertinggi yaitu 2,63 Kgf/mm², dan nilai kekerasan terendah adalah 1,93 Kgf/mm², maka pada pengujian struktur mikro menunjukkan material dengan nilai tertinggi dan terendah, terdapat perbedaan udara yang terperangkap dalam material dan densitas dari hasil pengepresan.
Cofiring Effect of Using Sawdust on Exhaust Emissions at the Steam Power Plant Muhammad Farras Ilham; Nazaruddin Sinaga
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 7 No 2 (2022): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/r.e.m.v7i2.1644

Abstract

Achieving the national energy mix in 2025 requires accelerating capacity development in new and renewable energy.Utilization of new and renewable energy potential aims to achieve the national energy mix target. One of the new renewable energy that has the potential to be developed in Indonesia is Biomass for fuel. One of the efforts to increase the use of biomass is by Cofiring. Biomass can be an effective alternative energy, in order to minimize the use of fossil fuels. The biomass is mixed into the coal bunker. The fuel mixture is flowed into the combustion chamber or furnace. Some of the advantages of doing biomass in PLTU include relatively lower investment and better environmental impact when compared to 100% coal. Cofiring PLTU has an effect on exhaust emissions, in evaluating the impact of exhaust emissions as a benchmark for environmental parameters, cofiring testing is carried out with reference to the Emission Quality Standard (BME).As a result, the effect of cofiring using 5% sawdust still has no significant effect on exhaust emissions at the CEMS (Continuous Emissions Monitoring System) PLTU. It is very possible that the type of coal used is still very influential on emission conditions, considering that the percentage of biomass used is still very small.
Design of Gasifier with Microwave-Based Technology with Steam and CO2 As Gas Agent To Produce Syngas Imron Rosyadi; Shofiatul Ula; Rivaldi; Kurniawan Putra Yudha
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 7 No 2 (2022): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/r.e.m.v7i2.1645

Abstract

This research is motivated by the increasing gas emissions produced by industrial, automotive and household activities which mostly use fossil energy as an energy source. CO2 capture is introduced to the use of gasification technology in an effort to reduce CO2 emissions which are one of the causes of the greenhouse effect. The role of microwave is also introduced as an effort to increase thermal efficiency and increase production and quality of syngas and its role in reducing tar which is known to be high in biomass gasification. The utilization of water vapor is also clearly disclosed and its effect on syngas products, especially hydrogen gas. The role of the parameters that affect the gasification process is analyzed to see which variant has the best role in improving the quality and quantity of syngas. Research development opportunities are presented by looking at research gaps and future prospects
Potential and Challenges of Hydrogen Development as New Renewable Energy in Indonesia Efrando Manullang; Nazaruddin Sinaga
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 7 No 2 (2022): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/r.e.m.v7i2.1647

Abstract

The use fossil energy consumption in Indonesia is increasing along with population growth and industrial development. Fossil energy oil and coal can produce greenhouse gas emissions and environment pollution. The largest producer of CO2 emissions comes from exhaust gases in the production process and motor vehicles. Indonesia's energy mix target in 2025 is around 23% from New and Renewable Energy (NRE). Given the importance of using NRE, Indonesia is starting to look for alternative energy that is environmentally and sustainable, like hydrogen energy. Green hydrogen technology has the potential to be developed in Indonesia. Hydrogen production processes commonly carried out are through the electrolysis of water, methanol, and biomass. The use of hydrogen can be applied to motor vehicles and power plants. Hydrogen can reduce greenhouse gas emissions. However, Indonesia has problems in developing green hydrogen technology, one of which is the high production cost, so it requires other parties to develop it.
Layer Height, Temperature Nozzle, Infill Geometry and Printing Speed Effect on Accuracy 3D Printing PETG Amirur Ridho Muhammad; Rahma Rei Sakura; Dedi Dwilaksana; Sumarji; Muhammad Trifiananto
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 7 No 2 (2022): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/r.e.m.v7i2.1649

Abstract

The manufacturing industry has grown rapidly in the last few decades. 3D printing is one of the technologies of manufacturing, this technology makes products by adding filaments that are stacked systematically to become a finished product. PETG filament is a polymer with the name polyester but with glycol modification. This study aims to determine and understand the effect of the process parameters layer height, nozzle temperature, infill geometry and printing speed. This research method uses the Taguchi method with L16 and various parameters; layer height 0.12mm; 0.16mm; 0.2mm; 0.28mm, infill geometry cross; cubic; tri-hexagonal; triangles, nozzle temperature 220ºC; 230ºC; 240ºC; 250ºC and printing speed 40mm/s; 50mm/s; 60mm/s; 70mm/s. After testing, it can be concluded that the most influential parameters are sequentially; layer height, nozzle temperature, printing speed, and infill geometry with layer height parameters have the dominant influence, nozzle temperature and printing speed parameters have a balanced influence and infill geometry parameters have the least influence.
Design and Fabrication of a Semi- Automatic Shoe Polishing Machine for Small Scale Business Taiwo Semiu Amosun; Shedrak E. Azike
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 7 No 2 (2022): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/r.e.m.v7i2.1652

Abstract

Shoe is generally made from leather which requires extreme care and regular polishing to maintain its shiny appearance. This work attempts to develop a semi-automatic shoe polishing machine for small scale enterprises. The machine is intended to grip the shoe at the right place, apply a layer of polishing wax all around the shoe and perform buffing action to obtain a shiny and assure minimum damage to the shoe. This semi-automatic shoe polishing machine is designed to consist of screw mechanism, a shaft, two bearings, two pulleys, belt, two fibred brushes, an electric motor and springs for gripping the shoe. The developed machine is limited to standard shoe sizes and capable of polishing a pair of shoes in 175 seconds.
Composite Floor Chair Waste Mangrove Fruit Flour Pungkas Prayitno; Joni Arif; Syaiful Arif
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 7 No 2 (2022): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/r.e.m.v7i2.1654

Abstract

One of the business sub-sectors that is capable of driving trade and development in Indonesia is the Handicraft Industry. One such craft industry is to utilize the potential of mangrove forests as economic management that manages with expertise, as well as creative, innovative, and commercial ideas so that it fosters interest and encourages people to develop ideas. Seeing from the potential availability of raw materials, this innovation is intended to utilize propagules as composite reinforcing materials, this innovation is carried out with the aim to model the floor chairs with propagules (Rhizophora mangrove fruit). This modeling uses the mixing of resin and powder propagules. The results show that it can be done by modeling floor chairs MangKoe using molds. This chair can hold back loads up to 70 kg.

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