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Jurnal Rekayasa Material, Manufaktur & Energi
Published by Universitas Muhammadiyah Sumatera Utara
ISSN : 26227398     EISSN : -     DOI : -
Core Subject : Science, Engineering,
Aerospace Engineering Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering
Jurnal Rekayasa Material, Manufaktur & Energi, yang diterbitkan oleh Fakultas Teknik, Program Studi Teknik Mesin, Universitas Muhammadiyah Sumatera Utara (UMSU), Medan, Sumatera Utara, Indonesia, Jurnal Rekayasa Material, Manufaktur & Energi menerima artikel ilmiah hasil-hasil penelitian, dan eksperimen, yang mencakup pada bidang Rekayasa Material, Manufaktur dan Energi, Mesin, dan ilmu yang relevan pada sektor terkait.
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Articles 22 Documents
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Search results for , issue "Vol 7, No 1: Januari 2024" : 22 Documents clear
Rancang Bangun ALPENLIBE (Alat Pemanen Energi Listrik Berbasis Piezoelektrik) Sebagai Upaya Mewujudkan Energi Terbarukan Listijorini, Erny; Susilo, Sidik; Adhiwindoro, Akhmad; Febrianto, Ilham; Shihab, Muhammad Alwi; Dwiyoga, Muhammad Ashari; Ananda, Rafi Rizqi
Rekayasa Material, Manufaktur dan Energi Vol 7, No 1: Januari 2024
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v7i1.16365

Abstract

Utilizing alternative energy as an effort to use energy needs to be done. One is energy harvesting, which is capturing minute amounts of energy from one or more surrounding energy sources, collecting and storing them for later use. There are examples of uses in harvesting energy from vibrations, which are carried out using piezoelectricity as a converter into electrical energy. A piezoelectric-based electrical energy harvesting device has been designed using a cantilever method from mechanical pressure from humans climbing stairs. This research uses an experimental method where there are variations in the load given by humans of 55 Kg, 65 Kg, and 75 Kg to provide a force on an energy harvester that has four piezoelectric circuits installed, which are installed in series and parallel totaling 38 piezoelectric units. , where the four circuits have a number of piezoelectrics of 10, 8, 10, and 8 piezoelectrics on each side. The resulting voltage will later be rectified using a rectifier bridge until it is temporarily stored in the capacitor. As obtained from the calculation results, the voltage values for each load are 7.762 mV, 11.103 mV, and 17.55 mV, respectively.
Review Komprehensif : Studi Perbandingan Antara Material Logam dan Komposit untuk Pembuatan Helm Anti Balistik Miwazuki, Shella Athaya; Anisa, Puspita; Rustama, Ravania Zackeisha; Christina, Athalia; Aritonang, Sovian
Rekayasa Material, Manufaktur dan Energi Vol 7, No 1: Januari 2024
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v7i1.17285

Abstract

The need to develop protective systems to protect against attacks from various sources is increasingly becoming a personal, social and national security issue. To develop innovative armor systems, it is necessary to monitor the developments made on the types, technology and performance of threats (weapons, projectiles, explosives, etc.) In particular, the use of helmets of a high level of protection on the battlefield is essential. Therefore, the development of evaluation methods that can predict injury and trauma is very important. However, the risk of injury or trauma that may result from induced acceleration is an additional consideration. To develop new materials and layouts for helmets, it is necessary to study the impacts caused by ballistic impacts on the human head in various scenarios. Composite materials in military applications have proven to be superior to metal materials, in increasing the mobility of Force personnel. The use of composite materials in military helmets is very important in relation to the speed of incoming bullets, one of which is made from thermoplastic and thermoset polymers. Particle composite material composed of Bisphenol A epoxy resin matrix and reinforcement in the form of Javanese jute fiber which is applied to bulletproof helmets. When using this composite, you can determine the number of sheets of Javanese jute fiber that is effective against the force of the bullet fired, this is to support the safety of its use.
Respon Mekanik Komposit Hibrid Diperkuat Serat Karbon dan Serat Kaca Akibat Beban Impak Untuk Aplikasi Helm Keselamatan Kerja Piliyang, Muhammad Yani; Amiruddin, Arfis; ., Indrayani; Ulana, Muhammad Indra
Rekayasa Material, Manufaktur dan Energi Vol 7, No 1: Januari 2024
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v7i1.16910

Abstract

Work safety helmets serve to protect the head from falling objects hitting the head directly and absorbing impact energy. To improve the performance of project helmets, innovations are made by using composite materials that combine the advantages of 2 types of fibers. This study aims to investigate the impact strength of hybrid composite materials using carbon fibers and glass fibers in an epoxy resin matrix and to make a prototype of a safety helmet. The manufacture of impact test specimens and prototype work safety helmets using the hand lay up method, using standar ASTM E23 05. The use of one type of fiber with a matrix:glass fiber or carbon fiber ratio of 50:50, and the use of a combination of two fibers with a matrix:glass fiber and carbon fiber ratio of 70:30. After that, charpy impact testing was carried out on the test specimens. The results obtained from impact testing show that the use of a combination of two carbon and glass fibers is able to withstand and absorb impact energy well.
Efektivitas Komposit dalam Memperkuat Rompi Anti Peluru Hertanto, Theofillus Lisa Okta; Aritonang, Sovian; Murniati, Riri
Rekayasa Material, Manufaktur dan Energi Vol 7, No 1: Januari 2024
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v7i1.17325

Abstract

This research examines the effectiveness of bulletproof vests made with composite materials, focusing on carbon fiber. The study finds that the thickness of the carbon fiber and the HGM plastic coating in the vest are crucial factors in enhancing protection against bullet penetration. In some instances, thicker composite materials offer better defense. Furthermore, the use of composites allows for lightweight vests, reducing the physical strain on the wearer. These findings have significant implications for the development of personal protective equipment in various sectors, such as the military, law enforcement, and industries like construction. Enhancing the efficacy of bulletproof vests through the integration of composite materials is a vital stride in enhancing the safety of individuals encountering potential bullet threats.
Analisis Performa PLTSOff -Grid 1 kWp Di Selasar Gedung Laboratorium Politeknik Negeri Jakarta Hidayati, Noor; Sitorus, Andre Halomoan; Widiyatmoko, Widiyatmoko; ekayuliana, Arifia
Rekayasa Material, Manufaktur dan Energi Vol 7, No 1: Januari 2024
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v7i1.17275

Abstract

The performance analysis of a 1 kWp off-grid Solar Power Plant (SPP) located on the terrace of the Energy Laboratory Building at Jakarta Polytechnic was conducted to determine the SPP's performance. The analysis involved comparing the design data with the actual installed system conditions. The methodology employed manual calculation of the SPP's power generation and simulation of its performance using PVSyst software. The analysis results indicated that the current performance ratio of the SPP is only 11%, primarily due to the low direct utilization of solar energy. A recommendation provided is to increase the load on the SPP system. Simulations conducted on the recommended load increase demonstrated a significant improvement in the performance ratio, with a value of 58%.
Teknologi Tenda Militer Portabel Berbasis Tenaga Surya Dalam Mobilisasi Taktis Tempur Aritonang, Sovian; Fajri, Zaidan Al; Azida, Putry Wanda; Sandri, Azzahra; Dintyra, Muhammad Daffa
Rekayasa Material, Manufaktur dan Energi Vol 7, No 1: Januari 2024
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v7i1.17288

Abstract

Indonesia's extensive geography, spanning from Sabang to Merauke, provides an uninterrupted solar energy supply, thanks to its prolonged daylight hours. This presents an excellent opportunity for the country to embrace renewable and sustainable energy, with solar power being a convenient option given Indonesia's tropical climate. The conversion of solar heat into electrical energy is an attractive proposition, allowing for the use of portable solar panels to power military vehicles while minimizing reliance on fossil fuels. Efficient energy storage solutions are needed to convert solar thermal energy into electrical energy, and sodium batteries are a more potent and eco-friendly option. Portable solar panels also offer an energy source for various military operations, such as powering tents and charging communication equipment. By incorporating solar energy into their operations, the Indonesian army can increase their capabilities while reducing their reliance on conventional energy sources. In conclusion, harnessing the abundant sunlight and tropical climate in Indonesia through portable solar panels and sodium-based batteries is a dependable and sustainable solution to meet the energy needs of military operations. This approach enables Indonesian soldiers to carry out their missions efficiently while minimizing environmental impacts.
Analisis Variasi Suhu Terhadap Variasi Cahaya Pada Rancang Bangun Solar Test Simulator Menggunakan Peltier ., Cholish; Rusdi, Muhammad; Rahmawaty, Rahmawaty; Pulungan, M Anhar; Azis, Abdul; abdullah, abdullah; Irawan, Shahril; Othman, Zulkifli
Rekayasa Material, Manufaktur dan Energi Vol 7, No 1: Januari 2024
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v7i1.17038

Abstract

The implementation of the Solar Panel Test Simulator design is carried out for testing in accordance with environmental temperature conditions. The difficulty of carrying out tests in actual conditions is the background for designing this tool. The intensity of heat from sunlight and also the variable ambient temperature influence the voltage released by solar panels. To obtain a solar panel voltage measurement data sheet like the situation above, it is necessary to design a simulation tool that is capable of being a reference to the actual situation. Peltier is useful for controlling temperature variations ranging from normal temperatures to below normal temperatures. Peltier is able to maintain temperature conditions until it is stable at 32 degrees Celsius by receiving light intensity. For light variations, researchers use halogen lamps which will function as heat providers. Solar light is capable of providing lighting intensity ranging from 0 - 100%. However, in this test we only use 3 conditions, namely light intensity of 30%, 60% and 100%. This test also aims to determine the effect of the voltage produced by solar panels on changes in light and also to determine the effect of the voltage produced by solar panels on changes in temperature and to determine the effect of changes in temperature on changes in light intensity. This tool is expected to be able to provide test results that can be used as a reference in measuring solar panels in real conditions.
Performance Comparison Of Self Aeration Flotation Machine Vs Induced Air Flotation Machine With The Additional Effect Of Variation Of SiBX Dosage On % Recovery of Cu and Au At North Concentrator PT. X Papua Putra, Budhi; M. Soedarsono, Johny Wahyuadi; Ariyani, Ira
Rekayasa Material, Manufaktur dan Energi Vol 7, No 1: Januari 2024
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v7i1.16941

Abstract

Comparison of the performance of self aerating vs induced water flotation machines with the effect of adding SiBX dose variations on % recovery of Cu and Au, so that it can be carried out to optimize the recovery process of Cu and Au at PT. X Papua. It was carried out at the Cl concentrator plant scale, using three types of SiBX dosage variations, namely 5 g/t, 10 g/t, and 15 g/t which were applied to both types of flotation machines. Furthermore, mineral assay and XRD tests were carried out. The results of % recovery of Cu and Au as a whole show that the self aerating flotation machine is able to remove Cu and Au more effectively than the water induced flotation machine for all coarse, medium, and fine mineral size fractions. Recovery of Cu and Au is influenced by the hydrodynamic properties of the two types of engines. The effect of adding variations in SiBX doses was less significant on % recovery of Cu and Au.
Efek Tipe NbRe Terhadap Sensitivitas Superconducting Single Photon Detector (SSPD) Dalam Penginderaan dan Komunikasi Kuantum Rahman, Aura Monalisa; Aritonang, Sovian
Rekayasa Material, Manufaktur dan Energi Vol 7, No 1: Januari 2024
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v7i1.17319

Abstract

The Single Photon Detector is employed in quantum computing, sensing, and communication technologies. NbRe, a superconductor, exhibits lower noise, energy gap, and minimum energy compared to silicon, resulting in higher sensitivity. NbRe can be found in the form of microstrips and nanostrips. Based on the data, NbRe with a microstrip cross-sectional area will have higher sensitivity and efficiency than NbRe with a nanostrip cross-sectional area. This is because the critical temperature (Tc), minimum energy (Emin), and thickness of NbRe microstrip are smaller than those of nanostrip, while its critical current density is larger. Based on literature review and calculations, it is determined that NbRe microstrip has Tc = 3.08 - 5.23K, Jc = 15.5x10^9 A/m², Emin = 0.017 eV, and a thickness of only 4 nm. In contrast, NbRe nanostrip has Tc = 6.77 K, Jc = 5x10^9 A/m², Emin = 0.28 eV, and a thickness of approximately 14.4 nm.
Studi Komparasi Karakteristik Mekanik Serat Alam sebagai Bahan Anti Peluru: Jurnal Review Haziza, Ellsa Putri; Aritonang, Sovian; ., Imastuti
Rekayasa Material, Manufaktur dan Energi Vol 7, No 1: Januari 2024
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v7i1.17326

Abstract

Indonesia has abundant natural resources, but if they are not optimized, they will end up as waste. Natural fibers come from plants, animals or minerals, standing out with certain advantages that differentiate them from artificial fibers. These advantages include the ability to decompose naturally (biodegradable), good strength and durability, and sustainable income through farming or capturing natural resources that produce fiber. The impact strength of composite materials combining natural fibers and synthetic fibers in ballistic material applications has grown rapidly. However, the use of synthetic fibers as reinforcement in composite materials has had a negative impact on the environment because they are difficult to decompose naturally and can cause long-term environmental disturbances. Therefore, utilizing natural fibers as reinforcement in composite materials is considered a good step. This update in research compares the characteristics of natural fibers in the use of ballistic materials. The natural fibers used are palm fiber, snake fruit midrib fiber, corn husk fiber, pineapple leaf fiber, water hyacinth fiber, hemp fiber. Ballistic material made from natural fibers

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