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Jurusan Teknik Mesin, Fakultas Teknik, Universitas Borneo Tarakan Jl. Amal Lama No. 1, Kota Tarakan 77123 Kalimantan Utara Indonesia
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Journal BEARINGS: Borneo Mechanical Engineering and Science
Published by Universitas Borneo Tarakan
ISSN : 29641462     EISSN : 29641500     DOI : -
Core Subject : Science, Engineering,
Control & Systems Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
Journal BEARINGS: Borneo Mechanical Engineering and Science (P-ISSN: 2964-1462, E-ISSN: 2964-1500) is a forum for academics and practitioners to publish scientific papers, research results, literature, and analytical studies that focus on the fields of mechanical engineering and related applied science.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 5 Documents
 1 
Search results for , issue "Vol 3, No 2 (2024)" : 5 Documents clear
Rancang Bangun Alat Pemotong Kentang Stick Dengan Menggunakan Mesin Penggerak Dinamo Listrik Skala Rumah Tangga Aji, Deva Dian Satrio; Murdianto, Deny; Nurdin, Muhammad Firdan
Journal BEARINGS: Borneo Mechanical Engineering and Science Vol 3, No 2 (2024)
Publisher : Faculty of Engineering, Universitas Borneo Tarakan

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Abstract

The processing of potato into fried potato sticks is one of the popular fastfood processing in Indonesia. One of the entrepreneurs in Tarakan City named Randi still uses manual tools to cut potatoes into the fried potato sticks, so the process is less efficient and effective. To solving this problem, it is necessary to create a potato stick cutting machine that is economically valuable. The purpose of this research is to design an potato stick machine. Based on the final design, the electric motor used is a single-phase AC gearbox motor with a power of 0.18 kW at 41.7 rpm, which is transmitted using a type B V-belt to the potato cutter. The test results of this potato stick cutting machine show a potato stick cutting capacity of 192.17 kg/hour with an electricity usage cost of Rp. 187.84/hour.
Pengaruh Komposisi Limbah Botol Plastik Terhadap Kekuatan Mekanik Material Komposit Febrianto, Rizky; Waluyo, Marhadi Budi; Santoso, Hadi
Journal BEARINGS: Borneo Mechanical Engineering and Science Vol 3, No 2 (2024)
Publisher : Faculty of Engineering, Universitas Borneo Tarakan

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Abstract

Peningkatan penggunaan plastik dalam kebutuhan sehari-hari menjadi salah satu penyebab dari permasalahan lingkungan yang patut untuk di minimalisir. Hal ini menjadi penyumbang terbesar menumpuknya sampah plastik. Oleh karena itu memanfaatkan kembali limbah sampah plastik perlu dilakukan untuk mengurangi pencemaran lingkungan. Tujuan dari penelitian ini yaitu untuk Menganalisa hasil daur ulang sampah plastik menjadi komposit serta menganalisa pengaruh komposisi pet terhadap kekuatan impak komposit bermatrix epoxy Dalam penelitian ini penulis menggunakan metode eksperimen, melakukan pembuatan spesimen menggunakan sampah botol plastik sebagai filler utama dalam pembuatan komposit. Berdasarkan analisa peneliti menemukan kesimpulan bahwa pada material komposit serat sampah botol plastik dengan paduan resin epoxy dimana menurunnya komposisi resin epoxy dan bertambahnya komposisi serat sampah botol plastik dapat menaikkan kekuatan mekanik komposit. Hal ini menunjukan bahwa serat sampah botol plastik menjadi filler utama dalam meningkatkan kekuatan mekanik. Kekuatan impact pada material komposit. komposit dengan komposisi (10%/90%) memiliki kekuatan impact sebesar 0.0053 . Kekuatan impact tertinggi berada pada komposit dengan komposisi (20%/80%) memiliki kekuatan impact sebesar 0.0099 . 
Analisis Pengaruh Sabut Kelapa Terhadap Kekuatan Impact Dan Kekerasan Material Komposit Bermatriks Epoxy Baihaqi, Ahmad Adi; Waluyo, Marhadi Budi; Murdianto, Deny
Journal BEARINGS: Borneo Mechanical Engineering and Science Vol 3, No 2 (2024)
Publisher : Faculty of Engineering, Universitas Borneo Tarakan

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Abstract

Coconut fiber is one of the versatile natural materials with various applications in various industries. Coconut fiber is used in the manufacture of ropes, fabrics, and other textile products. This fiber is often used in the production of sacks, mats, and wickerwork. Coconut fiber can be used as a mixture in the manufacture of concrete and other building materials. Coconut fiber can also be used as a composite material. Composites consist of two elements, namely matrix and filler. This study aims to determine the effect of coconut fiber variations on impact strength and hardness. The composition of the filler is around 10, 15, 20 (%) of coconut fiber with matrix resin. The addition of filler is accompanied by a reduction in the matrix used from 100% epoxy. Specimens with NaOH treatment were made with 9 specimens and without treatment were made as many as 3 specimens. Composites were made by hand lay-up process. The composites that have been made were then subjected to mechanical tests, namely hardness and impact. The highest hardness test data results with NaOH treatment at variation (15%/85%) were 75 shore D. The lowest hardness at variation (10%/90%) was 63 Shore D. While without treatment the research results showed the highest at variation (10%/90%) was 74 Shore D. And the lowest hardness at variation (20%/80%) was 63 Shore D. The highest impact strength of NaOH treatment was at variation 20% absorbed energy of 3.28 Joules and impact toughness of 0.020 J/mm2. The highest untreated composite was at variation 20% absorbed energy 0f 3.39 Joules and impact toughness of 0.021 J/mm2.
Pengaruh Variasi Posisi Throttle Terhadap Arus Motor, Konsumsi Baterai, Dan Akselerasi Motor Listrik (Modifikasi Vario 125) Rohman, Muhammad Fathur; Laksana, Alfian Hudan; Himawan, Citrakara U. S. K.
Journal BEARINGS: Borneo Mechanical Engineering and Science Vol 3, No 2 (2024)
Publisher : Faculty of Engineering, Universitas Borneo Tarakan

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Abstract

To reduce the use of fuel-powered motorbikes to avoid air pollution, one way is to shift the use of fuel to electrical energy. Currently, the use of electrical energy for transportation has begun to be in demand by the public, because it does not cause noise pollution, low operating costs, and lightweight vehicles. Converting a motorbike into an electric bike will solve this problem. This study uses an experimental method by comparing two settings on the controller from the default condition (Acceleration 0%; Power Limit 80%; Speed Limit 70%) to the maximum condition (Acceleration 30%; Power Limit 100%; Speed Limit 100%), which is then tested on the motor current, battery consumption, and acceleration on the converted motorbike. Based on data analysis and discussion of the study, it can be concluded that changes in the throttle curve settings on the controller can affect the amount of current, the amount of battery consumption, and acceleration on a motorbike that has been converted into an electric bike. Changing the controller settings from default conditions (Acceleration 0%; Power Limit 80%; Speed Limit 70%) to maximum conditions (Acceleration 30%; Power Limit 100%; Speed Limit 100%) is effective in increasing the speed and acceleration of converted electric vehicles. However, changing these settings will increase the current on the motor and battery consumption. In default conditions, the BLDC motor RPM is 3104 RPM (Motor current 31.8 Ampere), after further settings, the BLDC motor RPM increases to 3925 RPM (Motor current 51.4 Ampere)
Analisa Potensi Sumber Air Sebagai Pembangkit Listrik Tenaga Mikrohidro (PLTMH) Pada Aliran Anak Sungai di Kelurahan Pamusian Kota Tarakan Pakiding, Sakti; Santoso, Hadi; Nurdin, Muhammad Firdan
Journal BEARINGS: Borneo Mechanical Engineering and Science Vol 3, No 2 (2024)
Publisher : Faculty of Engineering, Universitas Borneo Tarakan

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Abstract

Microhydro Power Plant (PLTMH) is a power plant that utilizes flowing water as energy. The minimum power requirement from PLTMH is 5 kW. The energy value of the microhydro flow is influenced by the water discharge value and the height of the water fall. The higher the water discharge and the height of the water fall, the higher the energy that can be produced. The aim of this research is to calculate the potential microhydro sources in one of the tributary streams in Tarakan City, RT. 05 Kelurahan Pamusian, Kecamatan Tarakan Tengah. The river flow studied has an effective fall height of 0.7 meters. To determine the discharge value, it was obtained using the 90o angle V-Notch Thompson method. Measurements carried out in the morning and evening for 32 days showed an average of power value produced was 8.55 W. Based on this data, This location cannot meet the PLTMH criteria. However, this flow source has potential as a Picohydro Power Plant with a power below 5 kW.

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