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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 15 Documents
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Search results for , issue "Vol. 9 No. 2 (2025)" : 15 Documents clear
Pengembangan Mesin Pembentuk Ekor Peluru pada Senjata Sumpit dengan Pemakanan Otomatis Leo Dedy Anjiu; Erwin; Suhendra; Feby Nopriandy; Irma Fahrizal B.N.
Jurnal Engine: Energi, Manufaktur, dan Material Vol. 9 No. 2 (2025)
Publisher : Universitas Proklamasi 45

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v9i2.2366

Abstract

Sumpit merupakan senjata tradisional suku Dayak yang saat ini telah mengalami perkembangan, terutama dalam proses produksi sumpit atau peluru sumpit. Selama ini proses produksi khususnya untuk peluru sumpit masih dilakukan secara tradisional. Kelemahan sistem produksi secara tradisional adalah kurang presisi dan tidak seragam. Upaya penyelesaian masalah dilakukan dengan mengembangkan mesin pembentuk ekor peluru sumpit menggunakan sistem pemakanan otomatis. Penelitian ini bertujuan merancang bangun dan menguji kinerja mesin pembentuk ekor peluru sumpit dengan pemakanan otomatis. Tahapan penelitian meliputi proses pembuatan mesin, penulisan koding program, uji verifikasi mesin, uji kinerja mesin, pengambilan dan analisis data. Uji kinerja yang dilakukan pada mesin berupa pengukuran kapasitas produksi dan keseragama ukuran. Mesin hasil rancang bangun memiliki dimensi panjang 62 cm, lebar 60 cm, tinggi 110 cm. Mesin terdiri atas 3 motor yaitu motor pemutar ekor peluru menggunakan motor listrk 125 watt, motor pemotong menggunakan motor listrk 125 watt dan motor penggerak eretan menggunakan motor stepper. Pergerakan motor dikontrol oleh mikrokontroler Arduino UNO. Hasil pengujian menunjukkan bahwa mesin pembentuk ekor peluru sumpit memiliki kapasitas produksi rata-rata 18,10 butir/jam. Hasil pengujian keseragaman ukuran menunjukkan bahwa rata-rata keseragaman dimensi A dan B masing-masing sebesar 98,93% dan 98,94%, sedangkan dimensi C dan D mencapai 97,85% dan 96,89%.
Pembuatan Alat Hydraulic Hot Press sebagai Teknologi Tepat Guna dalam Pencetakan Totebag dari Lembaran Pelepah Pinang Muslimah; Kiki Kristiandi; Nuria; Ety Astuti; Novita
Jurnal Engine: Energi, Manufaktur, dan Material Vol. 9 No. 2 (2025)
Publisher : Universitas Proklamasi 45

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v9i2.2419

Abstract

The purpose of this study is to describe the process and results of developing a Hydraulic Hot Press machine for molding areca palm sheath sheets into tote bags. Areca palm sheaths were selected as the sample material due to their abundance as organic waste in Sambas Regency, which has not yet been utilized in waste processing. This research was conducted through five stages: literature review, tool design, preparation of tools and materials, fabrication, and testing. The development process of the Hydraulic Hot Press included determining the dimensions, constructing the frame, assembling the heating system, and conducting functional tests. The press was designed with dimensions of 100 cm in length, 60 cm in width, and 130 cm in height. It was equipped with a heating system powered by an LPG gas cylinder as the main energy source, with heat delivered through a piping system to the main pressing point. The results indicated that when the steel base plate of the press was subjected to hydraulic pressure and direct heating, thermal expansion occurred, causing slight bending of the steel foundation. This condition led to less-than-optimal molding results of the areca palm sheath sheets into tote bags.
Pengujian Tungku Pembakar Sampah Minim Asap Andhi Akhmad Ismail; I Aris Hendaryanto; Budi Basuki
Jurnal Engine: Energi, Manufaktur, dan Material Vol. 9 No. 2 (2025)
Publisher : Universitas Proklamasi 45

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v9i2.2448

Abstract

Waste refers to residual materials resulting from various human daily activities or natural processes that exist in solid form. In general, the term waste denotes unwanted materials or substances considered to have lost their usefulness after a certain activity or domestic process has been completed. To date, waste management efforts in many regions have not yet achieved optimal results. The level of public awareness and concern regarding environmental issues related to waste also varies significantly, making this issue an urgent environmental challenge that requires immediate attention and solutions. This study focuses on testing the effectiveness of waste treatment methods through the combustion process. The main objective is to determine the concentration levels of carbon monoxide (CO) and other hazardous gases generated during combustion, as well as to evaluate the performance of a waste incineration machine designed to produce low-smoke emissions. Gas concentration measurements were conducted using gas detection sensors integrated with an Arduino-based microcontroller system. The research approach combines both qualitative and quantitative methods. The qualitative aspect involves reviewing and comparing previous research findings, while the quantitative approach is carried out through direct measurements using a self-designed measuring instrument. This study is part of an ongoing research program aimed at developing a Low-Smoke Waste Incinerator Machine. Preliminary results indicate that the effectiveness level of the waste incinerator remains relatively low. This condition is attributed to the high concentrations of harmful exhaust gases such as carbon monoxide (CO), nitrogen oxides (NOx), and sulfur dioxide (SO₂) produced during the combustion process. In addition, the design of the incinerator has not yet reached optimal efficiency, as reflected by the persistently high NOx and SO₂ emissions. Therefore, more precise calibration of the gas sensors is required to ensure that the measurement data obtained accurately represent the actual concentrations of combustion gases.
ANALISIS EMISI GAS BUANG MESIN DIESEL TIPE COMMON RAIL DENGAN VARIASI BAHAN BAKAR B0 DAN BIO DIESEL B40 Radhian Krisnaputra; Ilham Ayu Putri Pratiwi; Yosephus Ardean Kurnianto Prayitno; Isworo Djati; Sindhu Arya Nugraha
Jurnal Engine: Energi, Manufaktur, dan Material Vol. 9 No. 2 (2025)
Publisher : Universitas Proklamasi 45

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v9i2.2460

Abstract

Kebutuhan akan sumber energi yang ramah lingkungan mendorong pengembangan bahan bakar alternatif berbasis biomassa, salah satunya biodiesel. Pemerintah Indonesia telah mentargetkan penerapan campuran biodiesel hingga B40 sebagai bagian dari strategi transisi energi nasional. Penelitian ini bertujuan untuk menganalisis pengaruh penggunaan bahan bakar campuran biodiesel 40% (B40) terhadap konsumsi bahan bakar dan emisi gas buang pada mesin diesel tipe common Rail Direct Injection(CRDI) dibandingkan bahan bakar solar murni (B0). Pengujian dilakukan menggunakan variasi putaran mesin 800, 1500, dan 2000 rpm, dengan pengukuran parameter Fuel Consumption Ratio (FCR), dan emisi gas buang (CO, CO₂, NOx, dan O₂). Hasil penelitian menunjukkan bahwa penggunaan B40 menyebabkan peningkatan konsumsi bahan bakar sebesar 5–10% akibat nilai kalor yang lebih rendah, namun daya keluaran mesin tetap setara dengan B0 karena sistem injeksi common rail mampu melakukan kompensasi tekanan secara adaptif. Dari aspek emisi, B40 menghasilkan penurunan emisi CO hingga 30% dan penurunan NOx sebesar 15–20%, disertai dengan sedikit peningkatan CO₂ akibat pembakaran yang lebih sempurna. Kandungan oksigen residu (O₂) pada gas buang B40 sedikit lebih rendah dibandingkan B0, menandakan pemanfaatan oksigen biodiesel yang lebih efisien dalam proses pembakaran. Hasil penelitian menunjukkan bahwa mesin diesel tipe common rail mampu beroperasi secara stabil menggunakan bahan bakar B40 tanpa modifikasi sistem, sekaligus menghasilkan profil emisi yang lebih bersih dan efisiensi pembakaran yang baik.
Integritas Struktur Alas Prostetik Pergelangan Kaki dengan Bahan Baja dan Aluminium Handoko; Lilik Dwi Setyana; Budi Basuki; Setyawan Bekti Wibowo; Bambang Hari Priyambodo; Yani Kurniawan; Rizky Kurniawan
Jurnal Engine: Energi, Manufaktur, dan Material Vol. 9 No. 2 (2025)
Publisher : Universitas Proklamasi 45

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v9i2.2465

Abstract

Leg prosthetics support the mobility of people with disabilities. Designing economical leg prosthetics is a major challenge for increasing accessibility for disabled people because the majority of them are from low income economy. Technically, the challenge is to make a cheap buat light weight prosthetics. Low cost metal raw material of prosthetics are often inversely proportional to the weight of components. One of the cheap materials, i.e. steel has a specific gravity 2.9 times higher than aluminum, which is lightweight but twice as expensive. This study examines the structural integrity of ankle prosthetic base components made of steel and aluminum when subjected to dynamic loads of the human body in a single step, using finite element method numerical computations. The goal is to determine whether the type of cheap material will be reliable in bearing the load. The computational results show that inexpensive materials such as mild steel and aluminum 6061 are able to support the mechanical structure of ankle prosthetic model to remain rigid while handling dynamic loads. The working stresses of both materials are still within safe limits, able to bear the load, even when multiplied by safety factor, the stresses are still below the yield stress value of each material. Aluminum 6061 is recommended for the production of lightweight versions of prosthetic models due to its maximum deflection that is really small as low as 4.41 x 10-3 mm, while mild steel is for the low-cost versions. Validation of the computational results was carried out using comparative literature data. Contact pressure value of 3 MPa from this research is in accordance with literature.

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