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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 19 Documents
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Search results for , issue "Vol 6, No 1: Maret 2023" : 19 Documents clear
Analisis Variasi Desain Rangka Sepeda Motor Listrik Terhadap Kekuatan Rangka dengan Ansys Workbench Mulyaningsih, Nani; Ramadhani, Wahyuchandra; Hastuti, Sri
Rekayasa Material, Manufaktur dan Energi Vol 6, No 1: Maret 2023
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v6i1.12680

Abstract

Designing a fuel-based electric motorcycle frame needs to be modified to be able to place electrical components. Design and simulation of frame design variations are needed to obtain optimal frame strength by having the lowest stress, lowest deformation, and highest safety factor. The research objective is to obtain a frame design with optimal frame strength. The research method uses a comparative method in the form of three frame design variations simulated by Ansys Workbench. The frame simulation uses two types of loads, namely normal loads (146.2 kg) and heavy loads (316.2 kg). The simulation material uses AISI 4130 material. The selected and optimal frame design is the frame with the lowest maximum von Mises stress value and not more than the yield stress, the lowest maximum total deformation, and the highest minimum safety factor and 2.5. From the research results, it was found that design 2 was the design with the best strength compared to design 1 and design 3. Simulation with normal load (146.2 kg) obtained a maximum von Mises stress of 50.38 MPa, maximum total deformation of 0.036 mm, minimum safety factor of 8.237. While the heavy load simulation (316.2 kg) obtained a maximum von Mises stress of 144.64 MPa, a maximum total deformation of 0.863 mm, a minimum safety factor of 2.869.
Optimasi Sudut Pemasangan Panel Surya Bifasial di Indonesia dengan Metode Simulasi PVSyst Ali, Mukhlis; Ludiana, Ludiana; Ramdani, Yogi
Rekayasa Material, Manufaktur dan Energi Vol 6, No 1: Maret 2023
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v6i1.12163

Abstract

PV rooftop is a renewable energy which becomes Indonesian government priority to implement in the residential and commercial buildings. However, its implementation faces a big challenge from Indonesian climate which mostly cloudy and rainy. This threat makes increasing in PV rooftop capacity, though the available rooftop area is limited. So, there is a requirement to increase the efficiency or energy output from PV rooftop. A solution which can potentially implement to do that is the use of PV bifacial. In some previous researches, PV bifacial can increase energy output of PV rooftop about 2%-12% compares to PV monofacial. However, the value of energy output from PV bifacial depends on tilt angle of PV. Tilt angle is a factor which related to latitude position of a location. Due to the most previous researches about PV bifacial are in subtropical countries, so there is a necessity to find an optimum tilt angle for PV bifacial in Indonesia. The purpose of this research is to find an optimum tilt angle and energy output of PV bifacial in several places in Indonesia. This research is a basic research so it will use simulation method using PVSyst software. PVSyst software is prominent software in PV design simulation which is already used in some previous researches. This research concludes that PV bifacial has 1o-2o optimum tilt angle difference compares to PV monofacial. The use of PV bifacial also can increase energy output 2.25%-3,5% better than PV monofacial.
Pengaruh Variasi Kedalaman Potong terhadap Gaya Potong dan Temperatur pada Proses Bubut Baja AISI 304 Berdasarkan Metode Elemen Hingga Mudmainah, Putri Hana Widyaning; Susanto, Agus; Ciptaningrum, Adiratna; Alfiyani, Risma; Wicaksono, Ramadhana Eka
Rekayasa Material, Manufaktur dan Energi Vol 6, No 1: Maret 2023
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v6i1.13739

Abstract

Cutting forces are parameters that can be used to optimize the machining process, analyze power consumption, and affect temperature during the lathe process. Measurement of cutting forces using a dynamometer and temperature using a thermocouple is quite expensive. This article discusses the effect of machining parameters on cutting force and temperature on AISI 304 steel workpiece material with carbide insert tool. The method used to analyze cutting forces and temperatures is based on the finite element method (FEM). The results show that the cutting force fluctuates due to the influence of depth of cut. The greater the value of the depth of cut used, the greater the axial cutting force and tangential cutting force. While the temperature does not change due to variations in depth of cut. Cutting speed variations do not significantly affect the cutting force, but affect the cutting time and temperature. The greater the cutting speed value used, the greater the temperature produced and the less cutting time required.
Penerapan Data Sintetis dalam Simulasi Kinerja Mesin Pemipil Jagung Hendra, Hendra; Erawadi, Dedi; Leni, Desmarita
Rekayasa Material, Manufaktur dan Energi Vol 6, No 1: Maret 2023
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v6i1.14219

Abstract

Corn sheller machine simulation is a process of modeling the performance of corn sheller machines in a virtual environment using software. The purpose is to predict machine performance, test and improve machine design before mass production, and minimize development cost and time. This study conducted a simulation of corn sheller machine performance comparison using real and synthetic data, by simulating the input of 1000 kg of cobbed corn mass. Synthetic data was created using linear interpolation method using data from previous testing. The evaluation results show that synthetic data can be used as input data for simulation with sufficiently accurate results. The evaluation results show a Mean Absolute Error (MAE) value of 0.20, Mean Squared Error (MSE) value of 0.12, and Root Mean Squared Error (RMSE) value of 0.34 for net and damaged corn shelling results. However, the evaluation results for fuel consumption show an MAE value of 0.09, MSE value of 0.020, and RMSE value of 0.14. The evaluation also shows that the machine RPM affects the net and damaged corn shelling results, processing time, and fuel consumption.
Analisis Kekuatan Mekanik Komposit Polimer Diperkuat Serbuk Kulit Kerang Zulfikar, Achmad Jusuf; Ritonga, Din Aswan A.; Pranoto, Siswo; Nasution, Fadly A. Kurniawan; Arif, Zainal; Junaidi, Junaidi
Rekayasa Material, Manufaktur dan Energi Vol 6, No 1: Maret 2023
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v6i1.13599

Abstract

In recent decades, the development of composite material technology has continued to increase rapidly and has been used for various applications as an alternative material to replace metal. In line with growing environmental issues, the utilization of natural materials which are abundant in nature and easy to find is the main priority for composite building materials. In this study, shell powder was used as a reinforcing material for epoxy polymer composites. The aims of this study were to obtain the average compressive, tensile, and flexural strength of shell powder-reinforced polymer composite materials, to calculate the distribution of test results using the PDF method, and to calculate the contribution of shell powder to the mechanical properties mentioned using the ANOVA method. The tensile, compressive, and flexural test specimens follow the test specimen standards of ASTM D638, ASTM D7264, and ASTM D695 respectively. The composition of shell powder consists of 10%, 30%, and 50%. Testing of these mechanical properties using a UTM-type hydraulic test equipment model WEW-300D with a capacity of 300 kN. The test results show an increase in the mechanical properties of the material. The increase occurred in compressive and flexural strength where the composition was given up to 30% and 50%, namely between 120 – 125 MPa. However, increasing the composition of shell powder at 30% and 50% actually resulted in a decrease in tensile strength between 12 – 9 MPa. Finally, based on the results of ANOVA analysis, it was shown that the addition of shell powder as a reinforcement for polymer composites significantly improved their mechanical properties.
Perpindahan Panas dan Penurunan Tekanan Pada Plat Rata Dengan Media Berpori (Porous) Umurani, Khairul; ., Rahmatullah; Siregar, Ahmad Marabdi; Nasution, Arya Rudi; Pratama, Riza Fauzi
Rekayasa Material, Manufaktur dan Energi Vol 6, No 1: Maret 2023
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v6i1.13598

Abstract

Convection heat transfer rate on a flat plate with a certain temperature can be increased by increasing the average heat transfer coefficient, increasing the surface area of heat transfer or both. In this study, stones and marbles were used as specimens of porous media with a diameter of 15 mm with a rock porosity of 43.8%, and marbles of 50.3% which were packed on a flat plate and tested in a rectangular air channel with an air velocity of 1 m /. s, 2 m / s, 3 m / s, 4 m / s, 5 m / s. Take experimental measurements on a heater set at 220 V. After steady conditions are established, record the temperature on the flat plate and the ambient air temperature. The highest Nusselt number occurs on flat plates with rock specimens of 69.025 and the highest convection heat transfer occurs on flat plates without porous media at 44.98 Watt, while convection heat transfer on flat plates with rock-porous media is lower than flat plates with porous media marbles. The friction factor decreases as the Reynold number increases. The greater the Reynold number, Nusselt number and the Convection heat transfer, followed by a decrease in the friction factor
Analisa Konstruksi Mesin Bubut Duplikat Untuk Profil Kayu Dengan Ukuran Kayu Diameter 15 Cm Dan Panjang 50 Cm Setiawan, Bambang; Hidayat, Gunawan; Djunaedi, Thomas
Rekayasa Material, Manufaktur dan Energi Vol 6, No 1: Maret 2023
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v6i1.13440

Abstract

In desaining wood profile lathes, the quality and strength are calculated by analyzing various loads that occur in the lathes and choosing suitable materials to be used in the manufacture of lathes, the materials used are 40 X 40 mm hollow beam type AISI 304 with tensile strength 6 x 108 N / m2, mudulus elasticity 1.9 X 1011 N / m2, performed to calculate the distribution of the load received by the rangkan of 757 N and done to get the results close to the original as a reference for making the lathe frame duplicate the wood profile. To do the simulation, solidwork software is needed as a means to DESAIN and DESAIN the lathe frame strength duplicate the wood profile. Manual calculation results are compared with finite element analysis (FEA) simulations. Strength analysis in the frame is obtained 3.9 X 107 N / mm2, the deflection that occurs is 0.08 mm.
Pengaruh Ketebalan Core Komposit Sandiwch Berpenguat Serat Pelepah Pisang-Kayu Jati untuk Aplikasi Partisi Peredam Suara pada Kamar Mesin Kapal Indrawan, Rizal; Prasaja, Sasti
Rekayasa Material, Manufaktur dan Energi Vol 6, No 1: Maret 2023
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v6i1.13676

Abstract

Natural fiber composites are one of the innovative materials in an effort to solve the waste problem. Banana midrib and sawdust are plantation and forestry wastes whose utilization is very minimal. This research was conducted to make sandwich composites reinforced with banana midrib fiber and sawdust which is intended to be able to replace glasswool to reduce noise in the engine control room. The use of glasswool is not good for health which if the particles are inhaled it causes respiratory problems. The thickness of the core in the sandwich composite was varied by 2, 4, and 6 mm. Sound absorption testing is carried out according to the ASTM E1050-19 standard. The hand lay up method and polyester resin were used to make natural fiber sandwich composites. The highest sound absorption coefficient on specimens 2-35 is 0.77. All specimens of sandwich composites produced in this study met the requirements for sound absorption installations in buildings (ɑ = 0.15). Along with the addition of the volume fraction reinforced on the core gives a parabolic effect with the addition of 35% giving the best results at thicknesses of 2 and 6 mm. The thinner the core provides a better sound absorption coefficient than other thicknesses.
Studi Pengaruh Titik Penambahan Sodium Isobutyl Xanthate (SIBX) dan Kecepatan Impeller pada Performa Flotasi Mineral Tembaga Oktikawati, Anjar; Nugraha, Cahyo Ady; Soedarsono, Johny Wahyuadi
Rekayasa Material, Manufaktur dan Energi Vol 6, No 1: Maret 2023
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v6i1.12650

Abstract

Evaluation of the use of the SIBX addition point and energy consumption in a flotation machine is an optimization effort to increase recovery in a valuable mineral separation process. The purpose of this study was to maximize the use of reagents and energy consumption in flotation machines by looking for the effect of the SIBX addition point and impeller speed variations on copper recovery. In the experiments, the authors vary the impeller speed and the SIBX addition points. The impeller speed is varied into five different speeds. While the SIBX addition point into four different points. From the variation of the experiment, the test must be done within 20 flotation kinetics. Those tests were performed for 8 minutes and will generate 4 concentrates and tailings. From this information, a graph of the relationship between recovery and time is obtained, and it can be seen that the point of adding SIBX and impeller speed is to produce optimal recovery values. From the available tailings and feed, an analysis of particle size and distribution is also carried out to check the effectiveness of changing the impeller speed pattern to provide kinetic energy for particles of various sizes to collide with air bubbles and increase the probability of collection of valuable minerals, so that high recovery is obtained in various areas. particle size. Of all the speed variations used in the impeller, the best kinetic recovery comes from the addition of SBX in the 0 min, 2 min, and 4 min. While the worst comes from the addition in the 6 min. Copper kinetic recovery is only affected by the nature and amount of hydrophobic particles but is not affected by impeller speed. Copper recovery at each end of the experiment showed the same value which is an average of about 94%.
Analisis Pengaruh Campuran Bioaditif Cengkeh Pada Bahan Bakar Pertalite Terhadap Performa Mesin Motor 4 Tak Hermanto, Tino; Pratama, Wahyu; Idris, Muhammad; ., Rahmatullah
Rekayasa Material, Manufaktur dan Energi Vol 6, No 1: Maret 2023
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v6i1.13597

Abstract

Bio additives are substances from nature that are combined with other substances to perform specific tasks, such as lowering exhaust emissions, preventing corrosion, and increasing engine efficiency. Therefore, the purpose of this study was to determine how the effect of adding bio additives to pertalite fuel on the performance of a 4 TAK motorcycle engine. Clove oil is the bioadditive used in this study. The experimental strategy was used in this study to approach the research by reading books and magazines. This research was conducted at PT. Indako Trading which is located in Siti Rejo I, Kec. Medan City, Jl. Sisingamangaraja No. 362, Medan City, North Sumatra 20144. In this experiment, different ratios of pertalite and bio additive fuels were used, including pure pertalite fuel 2:1000 ml, 5:1000 ml, 10:1000 ml, and 1000 ml. From the results of the tests carried out in this study, there was an increase in the power and torque values of the motorcycle, with the highest power and torque values of 0.4 kW and 0.4 Nm, respectively, in the comparison of variations in the mixture of bioadditives and pertalite of 5:1000 ml and 1000 ml of pure pertalite.

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