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Mestro
Published by Universitas 17 Agustus 1945 Cirebon
ISSN : -     EISSN : 26571072     DOI : doi.org/10.47685/mestro
Core Subject : Science, Engineering,
Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering
Mestro merupakan jurnal ilmiah dalam bidang ilmu pengetahuan dan teknologi yang diterbitkan oleh Fakultas Teknik Universitas 17 Agustus 1945 Cirebon, dalam satu tahun terbit dua kali terbitan yaitu bulan Juni dan Desember. Jurnal MESTRO mewadahi artikel hasil penelitian dan telaah ilmiah kritis dengan berbagai disiplin ilmu meliputi: Mechanical Engineering, Electrical Engineering, Civil Engineering, Computer Engineering and Manufacturing Engineering.
Arjuna Subject : Teknik (semua kategori) - Teknik Listrik dan Elektro
Articles 74 Documents
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Pengaruh Waktu Tahan Pada Proses Carburizing Terhadap Sifat Mekanik Baja S 45 C Pada Pembuatan Prototype Poros Engkol Mukro Afrianto; M.Fajar Sidiq; Moh. Agus Sidik
Mestro: Jurnal Teknik Mesin dan Elektro Vol 2 No 01 (2020): Edisi Juni
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (567.31 KB) | DOI: 10.47685/mestro.v2i02.282

Abstract

This study aims to determine the effect of holding time on the carburizing process of s 45 c steel, especially on the properties of hardness, tensile strength and tensile strength after carburizing with carbon shell charcoal. The research methodology is that the material used is medium carbon steel which is used for the manufacture of the crankshaft. Where the S 45 C steel material is carburizing at a temperature of 9000 C after which a holding time is carried out for 15 minutes, 25 minutes, and 35 minutes then cooled (quenching) quickly through seawater media. Each uses 3 specimens. Furthermore, the process of hardness testing, tensile testing, and bending. The results of this study are the hardness of S 45 C steel in the carburizing process with shell charcoal carbon to a temperature of 900° and holding time for 35 minutes the average hardness is 504 HB, the highest increase is 159.80% from raw material, holding time for 15 minutes and 25 minutes the average hardness was 456 HB and 496 HB increased by 135.05% and 155.67% of the raw material. The magnitude of the tensile strength of S 45 C steel with the carburizing process and holding time for 15 minutes the average tensile strength is 1442.32 N/mm2, the highest increase is 109.74% from the raw material and the carburizing process at a holding time of 25 minutes the average tensile strength is 1392.85 N/mm2, for a holding time of 35 minutes the average tensile strength is 687.29 N/mm2, a decrease of -0.0523% from the raw material. The bending strength of S 45 C steel with carburizing process and holding time of 15 minutes, 25 minutes, and 35 minutes has an average bending strength of 65.85 N/mm2, 56.63 N/mm2, and 62.04 N/mm2 , all experienced a decrease from raw material by 19.97%, 31.18%, 24.60%.
Analisa Perbandingan Kinerja Mesin Pembuat Es Krim Menggunakan Variasi Diameter Pipa Kapiler Sugara, Ferry; Yudisworo, W. Djoko
Mestro: Jurnal Teknik Mesin dan Elektro Vol 7 No 1 (2025): Edisi Juni
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47685/mestro.v2i02.321

Abstract

Current refigeration technology has an important influence in improving the quality of food products. The purpose of this study is to find out how much the difference in performance generated from the expansion device in the form of two capillary pipes of different diameters and know the power consumption of electricity used, so that it knows the electric power per day. The method used in this study is to test the ice cream maker refrigeration system, by testing its performance by measuring the temperature and pressure in each main component when the system is steady. The results of the actual COP value of the average capillary pipe diameter of 0.028 inches are 2.16 while the actual COP value of the average capillary pipe diameter of 0.031 inches is 2.74. And the actual COP value of a 0.028 inch diameter capillary tube has a greater value of 2.16 while a capillary pipe with a diameter of 0.031 inches has a smaller value of 1.88. Whereas the biggest value of refractive efficiency at the average value is a capillary pipe with a diameter of 0.028 inches of 63.58%. While for capillary pipes with a diameter of 0.031 inches smaller the value of refraction efficiency averaged 59.49% and the cabin temperature in capillary pipes with a diameter of 0.028 inches, the average value was -9.82 0C. While for capillary pipes with a diameter of 0.031 inches smaller it has a cooler average value of -9.09 0C.
Kajian Teknis Pembangkit Listrik Hybrid (Pv & Wtg) Pada Base Transceiver Station (Bts) Di Pulau Karimunjawa Safrizal Safrizal
Mestro Vol 2 No 2 (2020): Edisi Desember
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47685/mestro.v2i2.340

Abstract

Energy crisis of the world's oil and environmental pollution caused by burning fossil fuels to produce electrical energy, global warming has an impact on a very alarming level. The completion of the impact of global warming, which is one of them by reducing the energy use of fossil fuel-based electricity and alternative energy utilization (renewable energy) around it. Supplying electrical energy for operating the BTS (Base Transceiver Station), which is sourced solar power plant (PLTS) or Solar cells, Wind Power Generation (Wind turbine) and Hybrid Power Plant (Solar Cell integration with Wind Turbine) environmentally friendly (green energy ) capable of replacing conventional electrical energy either fossil fuel-based, derived from the power provider (PLN) or Genset, as well as capable of reducing levels of CO2 in the air. In this paper a discussion of solar panel power supply or 71.7% (93.46 kWh) of electricity consumption overall BTS 130.35 Kwh / day, with 72 panels and Wind turbine supply 28.3%. or 37 kWh / day consisting of 4 units of wind turbines x 545 Wp x 17 hours = 37,060 Wh / day, as well as reductions, CO2 emissions of 0.719 kg / kWh x 130.35 = 93.721 Kg / day.
Minimasi Waktu Proses Pewarnaan Alami Ecoprint Di Ukm “Citra Collection” Kota Tegal Tofik Hidayat; Saufik Lutfianto; Moh. Cipto Sugiono
Mestro Vol 4 No 03 (2023): Peran Energi Baru Terbarukan dan Robotik di Era Industri 4.0
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47685/mestro.v0i1.351

Abstract

Profit is the difference between the selling price of the product and the cost of production. Increasing profits cannot be done by increasing the selling price, because it will reduce competitiveness in the market. Then one way is to reduce production costs (HPP). HPP is formed from variable costs which include raw material costs, labor costs and costs for using fuel/electricity in the use of production equipment. Ecoprint batik developed in Indonesia starting in 2017 and has a separate place for batik enthusiasts. Batik ecoprint has also penetrated Tegal City and has its own market segment. The development of ecoprint batik is also marked by the development of the coloring method used, the mordant used and also the media used, which was originally only made of cloth, now using leather as an ecoprint medium. The use of leather as a raw material for ecoprint is quite elegant, however, products made from leather are still relatively expensive. This is inseparable from the long production process. The purpose of this research is to find out the factors that can affect HPP and how to overcome them. While the expected benefit is a decrease in production costs. The research was conducted at the UMKM Citra Collection in Tegal City. The research method uses experimental and descriptive methods with a rational method approach. The results of the research are in the form of a boiling device with dimensions of 700 mm in length, 330 mm in width, and 350 mm in height. This tool can reduce production time to 30 – 40 minutes shorter than the normal 2 hours 50 minutes. This tool is also designed to be more comfortable for workers and can reduce the rate of work accidents. The quality of the skin results with the new tool is better, because the wrinkles on the skin have decreased by up to 80%.
Design Monitoring and Automatic Control System for Modern Chicken Cage Mudofar Baehaqi; Yepie Dwi Vaktiyan; Arifudin Arifudin; Agus Siswanto
Mestro Vol 4 No 02 (2022): Edisi Desember
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47685/mestro.v5i02.357

Abstract

Automatic monitoring and control technology in chicken coops can be useful for broiler breeders in carrying out their daily farming activities. Monitoring data on environmental conditions in the cage can be done remotely with the help of the internet, as well as automatic control to maintain the stability of ideal conditions in the cage can be controlled based on the reading value of the current condition of the cage. The purpose of this research is to make it easier for breeders to carry out monitoring activities and regulate the stability of environmental conditions in the cage automatically with the help of internet of things technology. The stages of the research carried out were designing a chicken coop prototype and conducting control trials based on sensor reading values and designing a website for real-time data monitoring interfaces. The data obtained from this study were in the form of temperature, humidity and ammonia values in the cage. The research results for data monitoring show changing values during one week of monitoring. With this research, if it is further developed, it is hoped that it can regulate the ideal environmental conditions of the coop so that it can be maintained and the growth of the chickens can be more optimal.
Performance Analysis of 3 Phase Induction Motor Against Loading Using the Power Simulator (PSIM) Application Muhamad Soleh; Taryo Taryo; Arifudin Arifudin
Mestro Vol 4 No 02 (2022): Edisi Desember
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47685/mestro.v5i02.358

Abstract

Three-phase induction motors are the most widely used type of motor in industry, induction motors are widely used as prime movers to turn loads on production machines in the industrial world. The output of a three-phase induction motor is the amount of torque to move the load. If the load torque carried by the three-phase induction motor is greater, then the three-phase induction motor will not rotate. And if the load torque carried by a three-phase induction motor is too small, this is considered excessive. In this analysis the method used by the author is the experimental method of analysis using the Power Simulator application with load data and induction motor data. Based on the analysis, it was found that Istart and Inominal on a 15 kW induction motor have different values ​​according to the torque value used, so the torque value is directly proportional to the Istart value. Meanwhile, Istart induction motors 15 kW 894.324 (15 N.m), 894.149 (25 N.m), 894.159 (60 N.m) and 45 kW induction motors 355.15 (25 N.m), 355.172 (60 N.m), 355.172 (80 N.m) and induction motors 55 kW 337.743 (30N.m), 337.76 (50N.m) and 337.761 (100N.m) Reaches 80% of full speed, torque is at its highest “pull-out torque”) and current starts to fall and is at full speed, or synchronous speed, torque and stator currents drop to zero, it can be concluded that the greater the value of the stator resistance, the smaller the value of the starting current. Keywords: Induction Motor, Torque, PSIM
Analysis of the Electrical Power Results from the Conversion of Cow Manure in a Biogas Power Plant Agus Siswanto; Muhammad Rizal Ma’arif; Muhamad Soleh; Erfan Subiyanta
Mestro Vol 4 No 02 (2022): Edisi Desember
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47685/mestro.v5i02.363

Abstract

The need for renewable energy is urgently needed at this time to replace fossil energy as a source of electricity generation. The use of environmentally friendly renewable energy continues to be developed in order to deal with the energy crisis and create a healthy environment. The purpose of writing this final project is to analyze the electrical power resulting from the conversion of cow dung in a biogas power plant, so as to produce the efficiency value of biogas as a power plant. In this final project, electric power is generated from biogas and LPG gas which are converted using a generator set, after which the comparative values of biogas and LPG gas are obtained. The location of this research was conducted at a cattle farm in Girinata Village, Dukuntang District, Cirebon Regency. Calculations are made using varying loads, LPG gas fuel produces electricity that is quite stable compared to biogas which is still unstable. The stability of the electric power is generated due to the presence of high and stable fuel pressure, the more stable the pressure, the stable the generated electric power.
Performance Testing of Centrifugal Pump Type with 3 Hp Power Wasiran Wasiran; Waluyo Djoko Yudisworo; Endang Prihastuty
Mestro Vol 4 No 02 (2022): Edisi Desember
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47685/mestro.v5i02.365

Abstract

Pumps are fluid machines whose uses are very broad and important, ranging from industry to household needs. Selection of pump performance characteristics is very important and must be adjusted to the needs which include: discharge, head, power, and rotation. The performance characteristics of the pump are obtained through testing. In connection with the importance of information about pump performance characteristics, through this research activity efforts will be made to test centrifugal pumps using 3 hp of power. In this research, the data obtained from the direct test results will be entered, where the test is carried out at the Machine Performance Test Laboratory. In this test, the pump pressure data obtained from the gauge gradually with several valve openings, then the data is entered into the data table that has been prepared. The test was carried out to test the ability of the centrifugal pump test equipment using 3 HP power which was prepared as one of the laboratory pump test equipment for engine performance testing. In testing the centrifugal pump there are 3 variables that will be used to carry out the test, namely the first by using a tachometer which is useful for measuring shaft rotation, the second by using a Bordoun manometer which is useful for measuring fluid pressure, the third by using an orifice which functions to measure speed fluid.
Design of Roll Sheet Metal Forming Machine with Material Thickness of 0.3 mm Bambang Hermani; Dicky Omar Muhtar
Mestro Vol 4 No 02 (2022): Edisi Desember
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47685/mestro.v5i02.366

Abstract

The role of wood as a choice of roof frames for houses is increasingly being abandoned due to high costs, wood materials are easily exposed to flying termites so that they corrode. aluminum, and zinc. So, it is more resistant to corrosion and made according to ISO standards, mild steel sheet material / metal sheet for roof truss construction is formed by profiles where the process of forming these profiles is by cold rolling, known commonly as a metal forming process or cold metal forming with external force emphasis. on the plastic condition of the steel sheet, due to the high market demand which is promising now efforts to build a light steel profile factory are springing up rapidly. The prospect of the metal forming process industry still has a good chance, therefore the initiative was taken to design a metal roll forming machine with a straight triangular groove profile with galvalume steel sheet material with a thickness of 0.3 mm and used for practical purposes in the production process. The metal forming process is a work process. metal by changing the shape of the workpiece by applying an external force so that plastic deformation occurs and the resulting mild steel profile is generally intended to be carried out at room temperature without heating the steel sheet. The design of the roll machine along with the frame to be constructed has dimensions of 200x400x275 mm and a frame of 310x400x750 mm, with the rotary wheel of the roll machine.
Analysis of Lightning Strike Effects on Crude Oil Storage Tank Protection System at PT. Pertamina Balongan Indramayu Agus Siswanto; Junaedi Junaedi; Muhamad Soleh; Mudofar Baehaqi
Mestro Vol 4 No 01 (2022): Edisi Juni
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47685/mestro.v5i01.367

Abstract

Main Gathering Station (MGS) Balongan Pertamina EP Asset 3 OGT is an industry engaged in the oil and gas sector by always paying attention to QHSE (Quality, Health, Safety and Environment) aspects. This industry is a national vital object categorized as a zone 1 and zone 2 hazardous area. There is a source of danger that has the potential to cause damage to equipment and people. The electrical installation used is a lightning protection system with reference to the NFPA 780-2017 standard concerning the Standard for the Installation of Lightning Protection Systems. The rolling sphere method is used to calculate the need for a lightning protection system. To calculate the need for a grounding electrode, a rod electrode grounding system is used. Construction MGS Balongan (Hazardous Construction) has a value of direct lightning strike frequency (Nd) of 0.03 lightning strikes per year with an equivalent area of building lightning strikes (Ae) of 1082.95 m2. The value (Ng) of the intensity of lightning strikes to the ground is 27.6 lightning strikes per km2 per year, the protection level is level II with a radius of 30 meters and the earth resistance value is 0.344 Ω. The design value of this calculation is in accordance with PUIL 2011 standards, namely it must be below 5Ω for the overall value of earth resistance.

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