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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 230 Documents
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Efektivitas Pengeringan Pada Kolektor Surya Dengan Sudut Kemiringan 130 Menggunakan Bahan Absorber Putra, Mhd Irwansyah; Syuhada, Ahmad; Nasution, Arya Rudi
Rekayasa Material, Manufaktur dan Energi Vol 5, No 2: September 2022
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v5i2.10956

Abstract

Indonesia is an area with a fairly high intensity of sunlight because of its position on the equator. Its solar energy potential reaches 207.9 GW, while its use is only about 78.5 MW. Therefore, many studies have been conducted on the application of solar thermal energy which is a renewable energy source. One application of solar energy is used for the drying process of a material. In general, people in Indonesia still use traditional drying systems because solar energy is obtained free of charge and does not run out, so traditional drying is relatively cheap. The purpose of this study is to achieve the highest collector temperature by using heat absorption material on the absorber used in the solar collector with several variations of the absorber so as to optimize the heat temperature of the solar collector. This study tested the type of absorber of the most optimal heat absorption material on a solar collector with a slope angle of 1300 and 4 absorber variations, namely (1) iron sand and gram iron, (2) iron sand, (3) hot mix asphalt, and (4) asphalt and iron sand. This research was carried out by describing the tools designed with the preparation of measuring instruments, data collection and data processing carried out on the front page of the Faculty of Engineering and the Laboratory of Thermal Engineering, Faculty of Engineering, Syiah Kuala University. The tools used for the four flat plate solar collectors with the equipment and materials used in this study were wood (boards and beams) as a frame, mica plastic as a collector cover, iron sand and iron gram absorber material, iron sand, hot mix asphalt, asphalt. and iron sand, and rubber wood lat as insulation. The results showed that the distribution of air temperature along the channel tends to increase very sharply, especially in the bend area, this is due to sharp turns which result in flow turbulence. Thus, the highest temperature obtained for each absorber variation of sand and gram iron, iron sand, hot mix asphalt, and asphalt and iron sand with temperatures of 860C, 810C, 830C, and 840C. In this study, the intensity of sunlight is only 857.12 W/m2.
Natrium Silikat Sebagai Inhibitor Korosi Pada Pipa Penyalur Minyak Bumi Jenis Carbon Steel Saputra, Andika; Hakim, Arief Rakhman; Hamdani, M Zulva; Alamsyah, Asfitrah; Amalia, Yasmina
Rekayasa Material, Manufaktur dan Energi Vol 5, No 2: September 2022
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v5i2.10559

Abstract

Corrosion in the pipeline can cause leaks so crude oil directly pollutes the ocean ecosystem. Therefore, proper preventive methods are needed, such as using inhibitors. So far, the corrosion inhibitors used in the petroleum industry are of an inorganic type which can cause new problems such as toxicity to the environment and endanger human health. This paper describes an organic inhibitor based on sodium silicate obtained from rice husks through a synthetic method. The source of this inhibitor is very abundant in nature and the silica content is relatively high, around 86.90-93.70%. This inhibitor from rice husk, apart from having a good ability to reduce corrosion rates, also has the potential to be produced commercially.
Pembuatan Cetak Paving Block Berbahan Plastik Dan Pasir Siagian, Nusyirwan Said; Siregar, Ahmad Marabdi; Mukhtar, Muharnif; Siregar, Chandra Amirsyahputra
Rekayasa Material, Manufaktur dan Energi Vol 5, No 2: September 2022
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v5i2.12404

Abstract

Plastic is a synthetic polymerization product material, plastic is very difficult to decompose where the degradation of the plastic itself usually takes decades by nature. According to the Ministry of Environment and Health and the Ministry of Industry, the amount of waste in 2016 reached 6.25 million tons per year. This makes plastic waste one of the causes of environmental pollution. Recycling plastic waste is a solution to the problem of plastic waste which is increasingly polluting the environment. Realizing the importance of plastic recycling. Then a recycling tool will be made or changing the shape of plastic to be more useful, such as recycling plastic into paving blocks. Recycling plastic waste into paving blocks is expected to be a solution to environmental pollution due to plastic waste. Therefore a paving block printing tool made from plastic and sand is designed and produced which can reach a temperature of 397 0C, the paving block printing machine can make paving blocks made from PVC (Polyvinyl Chloride) plastic waste or plastic pipes. This tool can melt as much as 1.2 kg of plastic waste, namely 1 (one) paving block made from plastic waste and sand. The resulting paving blocks are in the form of bricks with sizes according to SNI Number 03-0691-1998 with dimensions of 10 cm x 20 cm x 6 cm.
Analisis Kekuatan Mekanik Pipa Air dari Bahan Komposit Serbuk Kulit Kerang Zulfikar, Achmad Jusuf; Siahaan, M Yusuf R; Irwan, Ade; Nasution, Fadly A. Kurniawan; Ritonga, Din Aswan A.
Rekayasa Material, Manufaktur dan Energi Vol 5, No 2: September 2022
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v5i2.11938

Abstract

Shellfish is one of the sources of natural wealth that is quite abundant and easy to obtain in the province of Sumatera Utara. In this study, shellfish will be used as an alternative raw material for the manufacture of water pipes. This study aims to obtain the average strength of the material against the bending and compressive loads imposed on the outer surface of the water pipe, calculate the distribution of the test result data by the Probability Density Function (PDF) method, and calculate the contribution of clamshell powder to the bending and compressive strength of the water pipe with the Anova and Tukey methods. Specimens are molded in the form of 2" water pipes according to SNI standards 06-0084-2002. Bending and pressing testing using ASTM D7264 and ASTM D695 respectively. Processing the distribution of test data using the PDF method, the calculation of variable contributions using the Anova method, and the comparison between variables with the Tukey method. The result obtained the best bending strength at a composition of 10% by weight, namely 3.3177 MPa, and the best compressive strength at a composition of 50% by weight of 4.37 MPa. Based on the calculations of the Anova and Tukey methods, the application of clamshell powder significantly affects the bending strength compared to its compressive strength, which is the composition of 10% by weight.
The Effect of Addition of Agave Sisalana Fiber and Sikacim Concrete Additive on Tensile Strength and Concrete Absorption Fahrizal Zukarnain; Kurniawan Syaputra; Sri Frapanti; Rizki Efrida; Ahmad Marabdi Siregar; Ika Pratiwi Pujianti; Hilda Nisti Zendrato
Rekayasa Material, Manufaktur dan Energi Vol 5, No 2: September 2022
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v5i2.12566

Abstract

This paper presents an experimental study that was carried out to determine the potential of natural fiber Agave Sisalana and sikacim concrete additive chemicals on concrete used as construction materials. The concrete mix ratio 1: 1,34: 2,37 was prepared using a water-cement factor of 0,45. Sikacim concrete additive is added as much as 0,8% of the cement weight and a reduction of water as much as 15%. The Agave Sisalana fiber added as much as 0,3% and 0,6% of cement weight. Tensile strength concrete testing was carried out at the age of 21 and 28 days. The experiment result indicated that the tensile strength and water absorption in concrete increase with the addition of Agave Sisalana Fiber and sikacim concrete additive. Thus, the Agave Sisalana Fiber and Sikacim Concrete Additive can be used as an additive in concrete mixing to increase tensile strength.
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.

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