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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 15 Documents
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Search results for , issue "Vol 6, No 2: September 2023" : 15 Documents clear
Analisis Aliran Daya Pembangkit Hybrid (Photovoltaic/Diesel) Pada Menara Mercusuar Di Pulau Pandang Rimbawati .; Yusril Ihza Mahendra; Juli Riandra; Partaonan Harahap
Rekayasa Material, Manufaktur dan Energi Vol 6, No 2: September 2023
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v6i2.14224

Abstract

Study of power flow analysis to obtain information about the flow of power or voltage in an electric power system. As time goes by and the number of tourists on Pandang Island, especially in the development and change sector, will also increase, the amount of burden incurred will also increase, so that a good initial design is no longer suitable for the current load. For this reason, it is necessary to analyze the power flow in order to determine the condition of the electric power system. The benefits of this research are also for planning evaluation if there will be additional burden innovations. In this study, ETAP Power Station 19.0 software was used using Newton Raphson for power flow simulation. The results obtained in the Etap simulation are 37% generating load with a total active power of 10.35 KW, reactive power of 6.85 Kvar, and apparent power of 12.42 KVA. This research also increases the load by 4,800 watts, where the photovoltaic generator must increase the photovoltaic capacity from the previous 10.26 kw to 13.29 kw, therefore solar cell panels will be added as many as 8 panels.
Perancangan Sudut Panel Surya Untuk Sistem Solar Tracker Di Kabupaten Karawang Menggunakan Metode Simulasi PVsyst Kaizar Nur Alam; Dian Budhi Santoso; Rani Rahmadewi
Rekayasa Material, Manufaktur dan Energi Vol 6, No 2: September 2023
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v6i2.15379

Abstract

The use of solar panel systems as solar energy utilization has become an attractive solution in order to reduce the use of fossil energy for electricity conversion raw materials. A solar Tracker system is used to increase the efficiency of solar panels by facing the solar panels to the angle of incidence of sunlight. This research aims to design the optimum angle that will be applied to the solar tracker system at University of Singaperbangsa Karawang. This study uses the simulation method of PVsyst software to analyze the performance of solar panel systems at various variations of tilt angle and azimuth. This research involves two optimum angle variations (5° and 9°), as well as an azimuth direction of 0° (system facing North) that will be applied to a static solar panel system and a solar tracker system. The collected sunlight data was inputted from the Meteonorm 8.0 database. The results of this study inform that the solar tracker system (Tilt Angel 5°) gets the most optimal energy compared to the other three systems, with the energy produced amounting to 247.92 kWh / year, and gets the smallest percentage of lost energy which is 7.46%. Following up on this research, it is necessary to combine research methods to determine the exact position of the Tilt Angel and Azimuth, then direct application is needed to compare the accuracy of the data obtained from the simulation.
Mesin Pencetak Pakan Ikan Alternatif Bagi Masyarakat Desa Buluhcina, Kecamatan Siak Hulu, Kabupaten Kampar Muftil Badri; Azridjal Aziz; Mohammad Dalil; Iwan Kurniawan; Ridwan Abdurrahaman; Andi Arief Kusuma
Rekayasa Material, Manufaktur dan Energi Vol 6, No 2: September 2023
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v6i2.14895

Abstract

Buluhcina is one of the villages in Siak Hulu, Kampar District, Riau Province. The natural wealth potential in Buluhcina includes: (1) several villagers develop cage fish cultivation; (2) the river along the village as a natural potential has lots of fish needed by the community; and (3) lakes and swamps that have the potential to be developed for new jobs. From the community service activities in Buluhcina, it was concluded that: (1) this fish feed molding machine is capable of producing fish feed, the feeds is produced from the machine must be dried by conventional drying (the heat from the sun). (2) Running test for the production of fish feeds that have been made are used as samples of fish feed developed in Buluhcina. Operational training activities for produce the alternative fish feed have been successfully carried out in Buluhcina.
Perancangan Mesin Penggiling Kopi Dan Penakar Bubuk Kopi Untuk Usaha Mikro Kecil Menengah Aidil Zamri; Regal Junia Mandora; Yuliarman .
Rekayasa Material, Manufaktur dan Energi Vol 6, No 2: September 2023
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v6i2.16316

Abstract

In micro, small and medium enterprises in coffee grinding and coffee powder dosing. We still see a lot of things manually using measuring spoons and scales, in large quantities it takes a long time to measure. So that the coffee grinder and coffee powder measurer are designed in one machine with a smaller and simpler size, where there are two processes, namely the coffee grinder and the coffee powder measurer. The shaft of the blade of the coffee grinder is designed to have a diameter of 15 mm using bearing number 6002. By using four cutting blades with coffee cutting knife dimensions, 25 mm long and 6 mm wide. In the grinding machine, the coffee is ground into powder with a machine capacity of 73.8 kg/hour. After becoming powder, there is a process in the measuring machine, the coffee powder is measured with the same mass in each package with a machine capacity of 73.8 kg/hour. The driving motor used for the coffee grinder and measuring machine is 2 HP. The rotation speed is 1,400 rpm, with the motor type ML90S-2.
Studi Perhitungan Volume Bahan Bakar Minyak Menggunakan Metode Perhitungan Liter Standar 15 derajat Celsius Pada Motor Tanker Kristian Tarigan; Hodmiantua Sitanggang; Widiyanto .; Dewi Sholeha
Rekayasa Material, Manufaktur dan Energi Vol 6, No 2: September 2023
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v6i2.16311

Abstract

The method of calculating the volume of fuel oil using standard 15⁰ C is one of the methods used internationally in calculating the volume of handover transactions. To standardize the calculation of fuel volume in various weather conditions, there are several fuel calculation methods, namely the Observed calculation method, th calculation method in standard 15⁰ C, the calculation method in barrels and the calculation method in long tons. For the calculation method that is suitable for use in Indonesia is the standard volume calculation method of 15⁰ C, so that in extreme weather conditions or temperature differences, the volume calculation can still be accommodated even though the difference is very significant. In this case, we take a sample calculation of the volume of MFO fuel oil through the Moto Tanker at the Belawan PLTU Jetty Port. From the measurement results, the overall volume was 4,802,983 liters of Observed, and at a standard volume of 15⁰ C, a volume of 4,747,268 liters of standard 15⁰ C was obtained. From these results, the difference between the Observed volume and the standard volume of 15⁰ C was 55,715 liters or equivalent to 1.16% of the volume Observed. So it can be concluded that the standard volume value of 15⁰ C is 1.16% smaller than the Observed volume and the standard volume of 15⁰ C will always be lower than the Observed volume. For this reason, the standard volume calculation method of 15⁰ C is a very suitable method for calculating the volume of fuel oil.
Analisis Tegangan Mekanik Pada Mesin Press Hidrolik Dengan Beban 20 Ton SS Sarjana; Yogi Prawoto; Bobby Umroh; Rahmatullah .; Muhammad Idris
Rekayasa Material, Manufaktur dan Energi Vol 6, No 2: September 2023
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v6i2.16551

Abstract

Hydraulic press machine is a tool used for work that requires a compressive action force. The stress distribution that occurs in this study will be determined in the development of a press machine under a state of pressing with a load of 20 tons. Researchers use Finite Element Analysis (FEA) to generate data on the stress circulation in the engine construction. The research objectives: (1) Calculate the hydraulic pressure strength in theory, (2) Calculate the mechanical stress in the hydraulic press construction manually using the ANSYS R15.0 software, (3) Calculate the strength of the hydraulic press construction manually and using the ANSYS R15 software. .0. In this review, FEA estimation is completed with the help of Ansys Workbench R15.0 programming. The information load comes from hydraulic pressure. The inspection strategy utilizes FEA with the type of underlying structural analysis. FEA simulation results stated, the maximum stress that occurs in the table is 98.646 MPa and the maximum deformation is 0.21613 mm. The results of Ansys analysis stated that the maximum stress that occurs on the table is 98.646 MPa and the maximum deformation is 0.21613 mm. Considering the Tresca hypothesis, it is found that the stresses and deformations that occur are below the standard for structural failure. So that the frame of the hydraulic press is safe for use in a load of 20 tons.
Investigasi Peleburan dan Pembekuan Phasa Change Material (PCM) Paraffin Wax Sebagai Thermal Energy Storage Pada Pipa R Handoko; A Suwandi; Chandra A Siregar; Ahmad Marabdi Siregar
Rekayasa Material, Manufaktur dan Energi Vol 6, No 2: September 2023
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v6i2.16336

Abstract

Phase change materials (PCM) are materials that can change phase from solid to liquid and vice versa from water to solid. PCM is the most efficient material for storing heat energy in the form of latent heat. This study aims to investigate melting and freezing of PCM types of paraffin wax in pipes. The investigation was carried out in 3 experiments with heat source temperatures of 90 0C, 85 0C and 80 0C. To facilitate investigation, paraffin wax is placed in a transparent tube. During the smelting process, observations were made for 600 minutes, and data recording and shooting were carried out every 60 minutes. The result is that the melting of paraffin wax starts from the top of the heat source side. The higher temperature paraffin wax moves upwards and the lower one moves downwards. On freezing, also found the same thing. The flow pattern is affected by the temperature of the paraffin wax itself. In addition, it can also be concluded that the higher the temperature of paraffin wax, the higher its ability to store heat energy.
Analisis Energi Pada Alat Desalinasi Tenaga Surya Jandri Fan HT Saragi; Eka Putra Dairi Boangmanalu; Angga Bahri Pratama; Franklin Taruyun Hudeardo Sinaga; Al Qadry; Wawan Septiawan Damanik
Rekayasa Material, Manufaktur dan Energi Vol 6, No 2: September 2023
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v6i2.15169

Abstract

In recent times, many studies have been carried out on desalination systems in areas that have difficulty in obtaining clean water sources. Desalination is a method used to distill salt water or brackish water into clean water using solar power as its energy source. This desalination process is a practical alternative that can be used to offer renewable energy sources that are used to produce clean water. To perform energy analysis, the first law of thermodynamics is used as a basis. This study aims to obtain the results of the amount of energy obtained from the solar desalination system and to determine the factors that greatly affect the amount of energy obtained from the system for evaporating water. The method used in this research is an experiment by testing a solar desalination device for eight days. The results show that the highest thermal energy produced is 8.98 kWh and the lowest is 1.56 kWh, and the factors that influence the amount of thermal energy are the heat transfer coefficient and the amount of distilled water produced by the system.
Pemodelan Inspeksi Kerusakan Ban Mobil Menggunakan Convolutional Neural Network (CNN) Desmarita Leni; Halga Yermadona
Rekayasa Material, Manufaktur dan Energi Vol 6, No 2: September 2023
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v6i2.16198

Abstract

Tire damage inspection can be categorized as part of vehicle maintenance with the aim of ensuring that the tire condition is in good condition. Visual inspection using human observation has limitations, making it not always accurate and can result in errors in determining tire suitability. This research designs a machine learning modeling using Convolutional Neural Network (CNN) to detect damage to mobile tires. The parameters used in the CNN model training are the Adam optimizer, learning rate 0.0001, batch size 16, and using the Early Stopping function. In this study, the CNN modeling was tested with two treatments, namely using a dataset without data augmentation and a dataset using data augmentation, then the results were evaluated using a confusion matrix. The results showed that data augmentation treatment can significantly improve model performance, with an increase in accuracy of 20%, precision of 14%, recall of 22%, and f1-score of 19% compared to treatment without data augmentation
Pengaruh Perlakuan Ekstraksi Limbah Ampas Kopi terhadap Sifat Mekanis Komposit Bermatriks Polipropilena Ella Melyna; Raizy Ziman Syiar
Rekayasa Material, Manufaktur dan Energi Vol 6, No 2: September 2023
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v6i2.14920

Abstract

The rapid development of technology and science produces renewable versatile ideas and products. This study examines the use of coffee grounds as filler for polymer composites. The polymer used is a polypropylene thermoplastic polymer. The use of spent coffee grounds can reduce environmental waste. The oil content in coffee grounds is hydrophobic, while the polypropylene matrix itself is hydrophilic. The purpose of extracting coffee grounds is to remove the oil content in coffee grounds, with reduced oil and water content, the adhesion between the polypropylene surface and the coffee grounds will be better. The manufacture of polymer composites uses a Manual Forming Machine (MFM) with a variety of additions of extracted coffee grounds to polypropylene. The results of the study stated that the extraction treatment on coffee grounds increased the values of tensile strength, impact strength, and flow rate compared to the addition of coffee grounds without extraction, but variations in the addition of coffee grounds decreased the values of tensile strength, impact strength and flow rate. The highest variation in the polypropylene matrix composite with the addition of 5% coffee grounds waste extraction resulted in a tensile strength of 20.22 MPa, an impact strength of 2.398 kJ/m², and a flow rate value of 8.48 g/10 minutes. The extraction process removes the oil content. This is evidenced by the loss of ester groups in the functional group test results of the extracted coffee grounds waste.

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