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Jurnal Engine: Energi, Manufaktur, dan Material
Published by Universitas Proklamasi 45 Yogyakarta
ISSN : 25797433     EISSN : 25797433     DOI : http://dx.doi.org/10.30588/jeemm
Core Subject : Science, Engineering,
Control & Systems Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
Jurnal Engine: Energi, Manufaktur, dan Material is registered with ISSN 2579-7433 (online) on The Indonesian Institute of Sciences (LIPI). This journal is under publishment of the Mechanical Engineering Department, Universitas Proklamasi 45 Yogyakarta. It is a scientific journal focusing on Energy, Manufacturing, Material, Mechanical, and Software Simulation. It provides a publishing platform for scientists and academicians to share, publish, and discuss all aspects of the latest outstanding development in the field of Mechanical Engineering.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 140 Documents
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Analisa Kekerasan dan Keausan Cylinder Sleeve dari Besi Cor Kelabu FC250 Hasil Sand Mold Casting Sumpena Sumpena; Hb. Sukarjo; Wardoyo Wardoyo; Soksono Singgih Pramana
Jurnal Engine: Energi, Manufaktur, dan Material Vol 5, No 2 (2021)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v5i2.944

Abstract

The Cylinder sleeve is an engine component that is mounted on the cylinder block which functions as a piston glide base. The cylinder sleeve is made of FC250 gray cast iron. FC250 is a gray cast iron that has lamellar graphite with a tensile strength of at least 250 MPa. This study aims to determine the mechanical properties of hardness and wear of the Cylinder Sleeve made of gray cast iron FC250. The method used in this research is gray cast iron which is cut with a length of 5.5cm, thickness 0.7cm, height 0.7cm which is formed according to the standard size of the hardness and wear test. The tests carried out include testing brinell hardness and wear. The results showed that the lowest hardness value was 134.63BHN and the highest hardness value was 191.43BHN. The increase in hardness values is influenced by the carbon content that cannot be spread evenly, which is followed by a fast cooling rate. The results of the wear test obtained the lowest price of 0.00017mm³/kg.m and the highest wear price of 0.00028 mm³/kg.m.
Energi Listrik pada Industri Kecil Teh Celup Herbal Daun Urokep Deby Mipa Salam; Andrian Fernandes; Rizki Maharani
Jurnal Engine: Energi, Manufaktur, dan Material Vol 6, No 1 (2022)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v6i1.905

Abstract

Urokep leaf or Chinese Ketepeng (Senna alata) is one of the most commonly found medicinal plants and can be used as raw material for herbal tea bags. An essential process in making herbal tea on a household scale is the chopping of dried leaves into a powder that is ready to be put into teabags and pressing the teabags. The leaf shredder process can use a chopper and a blender, while the teabag pressing process uses an impulse sealer. This study aims to compare the energy needed by choppers and blenders in making urokep leaf teabag powder, as well as the use of impulse sealers with element lengths of 20 cm and 30 cm. The research was divided into two stages, i.e. chopping the dried leaves into the powder stage and pressing the teabags stage. The chopping dry leaf into the powder stage was counted by calculating the time for the chopper and blender to powder 1 kg of dry leaves. The pressing of the teabags was carried out by calculating the pressing time of 1000 teabags using an impulse sealer with 20 cm and 30 cm element length. The amount of electrical energy is used by multiplying the electric power by the time of each tool.The results showed that the electrical energy used by the chopper to shredder 1 kg of dry Urokep leaves was 0.10833 KwH, while the blender required more energy, which was 0.27833 KwH. The electrical energy to press 1000 teabags used by the impulse sealer 20 cm is lower at 0.310 KwH than the impulse sealer 30 cm 0.633 KwH. The combination of a chopper and impulse sealer 20 cm is highly recommended for household-scale industries.
Analisis Sootblower Terhadap Head Transfer Economizer Pada Boiler Jainal Arifin; Firda Herlina
Jurnal Engine: Energi, Manufaktur, dan Material Vol 6, No 1 (2022)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v6i1.912

Abstract

The Ministry of Energy and Mineral Resources (ESDM) said that the current national electricity consumption is still relatively small, namely one-quarter of the indicators of developed countries in the world. With a figure of 956 Kilowatt-hour (KWh) per capita, Indonesia's electricity consumption has only reached 23.9% of the electricity consumption of developed countries of 4000 KWh per capita. Based on field observation data, the temperature in the economizer pipe ranges from 280 0C to 330 0C even though it should be between 350 0C to 470 0C (Manual Book PT. Wijaya Triutama) is based on operational standards for a maximum load of 4 MW. A decrease in the temperature in the economizer pipe which is already below the limit will certainly cause a reduction in the electrical power generated and then fuel consumption will increase from 5 tons of wood waste per hour to 7 tons of wood waste per hour. Based on data analysis and discussion, conclusions can be drawn regarding the economizer analysis on boilers that work below the normal limit of gas temperature of 330.9 0C which should be normal temperature of 470.6 0C then water temperature of 152.3 0C which should be 234.8 0C due to several factors including is the contamination in the economizer pipe which causes the temperature to drop, then the efficiency value in the economizer before the research is 58.0% and after repairs and cleaning of the economizer pipe is 70.2% the value of the temperature increase is very influential on the boiler that produces steam pressure Very large.
Pengaruh Bentuk Rangkaian Panel Surya Terhadap Kuat Arus, Tegangan dan Daya Pande Putu Agus Santoso; Feby Nopriyandy; Irma Fahrizal Butsi Ningsih; Leo Dedy Anjiu; Indra Kurniawan
Jurnal Engine: Energi, Manufaktur, dan Material Vol 6, No 1 (2022)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v6i1.996

Abstract

The purpose of this study was to determine the effect of solar panel circuits on current, voltage and power. This research is a true experiment. Dependent variables were current, voltage, and power. Independent variables were a series circuit of solar panels and a parallel circuit of solar panels. The sample numbers of studies were 12 for each group of independent variables. The data were analyzed using the t-test at the 5% signification level. The results showed that the electrical power produced by a series circuit of solar panels was, P = 4.81 watt, Sd = 0.24. The electrical power produced by a parallel circuit of solar panels was P = 4.69 watts, Sd = 0.13. The t-test showed that there was no difference in electrical power produced by the series circuit of solar panels and parallel circuit of solar panels, with to = 1.525 < tα/2, v =2,074. The form of a circuit (series or parallel) has no significant effect on power but differs only in current and voltage. In series circuit, I1 = I2 = IΣ and V1 +V2 = VΣ. In parallel circuits V1 = V2 = VΣ and I1 + I2 = IΣ. This can be adjusted to our purpose of using solar panels circuit. If it requires a large current, the solar panels must assemble in a parallel circuit. But if it requires a large voltage, the solar panels must assemble in a series circuit.Keywords: current, parallel, power, series, voltage
Perancangan Sistem Pengelolaan Engineering Order pada Lini Produksi Yatna Yuwana Martawirya; Syfa Nur’aini Septianingsih; Suryandaru Martawirya
Jurnal Engine: Energi, Manufaktur, dan Material Vol 6, No 1 (2022)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v6i1.1002

Abstract

Production line is a place for production activities that consists series of workstations. The product moves from one workstation to the next in sequence to go through the stages of the process. Products are composed of components, sub-assemblies, or assemblies. During production activities, it is possible to change materials which are part of a product structure. This happened because of the proposal from the company staff which is submitted through an engineering order. Submissions are made for technical reasons or production costs. The decision to approve or reject the engineering order is determined by designer. The approved engineering order resulted in changes to the product structure and material requirements at the workstation where the material was changed. The process for handling new materials can also change depending on the designer's decision whether to use the old or new process. It is necessary to determine whether the old process is still used or not if designer decides to use a new process. Therefore, a system is needed to manage engineering orders so that changes can be updated automatically. The engineering order management system media is a web-based application. It is vital to model the system based on real-world situations before designing a web application. The object-oriented modeling concept, which is expressed in a class diagram, is used to model the system. Web development using the Python programming language and the Django framework has been carried out successfully. Every web feature has worked as expected.
Tinjauan Potensi dan Kebijakan Energi Surya di Indonesia Faisal Afif; Awaludin Martin
Jurnal Engine: Energi, Manufaktur, dan Material Vol 6, No 1 (2022)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v6i1.997

Abstract

The need for electrical energy in Indonesia is always increasing from year to year. The State Electricity Company in Indonesia (PLN), said that the national electricity demand in 2018 was 232,296 TWh and will increase 5.1% every year. However, energy sources are still dominated by coal and fossil fuels at 59.6%. The potential for renewable energy from solar energy is currently not widely used, even though the potential for renewable energy is very large, especially in Indonesia. This paper purpose to provide information about the potential of solar energy that can be utilized especially as a power plant and the policies and constraints of solar power plants in Indonesia. Indonesia has a fairly stable distribution of solar radiation throughout the year. The government has targeted the installed capacity of solar energy for power plant to reach 0.87 GW by 2025. Realization of Solar Power Plants (PLTS) in 2020 reached 0.15 GWp from the potential of solar energy in Indonesia of 207.8 GWp. Researchers, academics, and the government also continue to develop and innovate of solar energy technology in Indonesia and are expected to maximize the use of Renewable Energy. Some of the obstacles experienced are the high investment costs that must be incurred, causing the price of electricity produced from renewable energy to become uneconomical.
Kajian Analisis dan Kontruksi Menara Pendingin - Review Teguh Irawan
Jurnal Engine: Energi, Manufaktur, dan Material Vol 6, No 1 (2022)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v6i1.1003

Abstract

A cooling tower is a heat remover device that can be operated to transfer exile heat to the atmosphere. Generally, cooling towers are used to cool centrally flowed water and building cooling. The production process in the industrial world uses many large-scale machines. The process of these machines generates heat as a process of engine work, so it requires a cooling system for the working process. Cooling towers are very important for the industrial world. One of the functions of the cooling tower is as a heat exile around the environment, so it has a very important role in the industrial world. For Example, companies in the chemical sector, one of which is sulfa acid processing, H2O2 factories, and so on. There are different types of cooling towers operating, for example, heat exchangers, chillers, pumps, and compressors. Cooling tower performance depends on the mass flow rate of fluid, hot water temperature, and cold water temperature.
Face Mask Detector and Temperature Skrining Using IoT Sari Muthia Silalahi; Paul Nainggolan; Christine Hutahaean; Grace Siburian
Jurnal Engine: Energi, Manufaktur, dan Material Vol 6, No 2 (2022)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v6i2.1118

Abstract

The coronavirus outbreak hit the world in early 2020, including Indonesia. Health protocols such as wearing masks, maintaining distance, checking body temperature, and washing hands are carried out to prevent the spread of the coronavirus. Therefore, this research aims to build an Internet of Things (IoT) based system to detect the use of masks and body temperature measurements as well as the use of doorstops as a condition of whether users can enter the environment or not. Observations, questionnaires, and interviews were also conducted to collect data to see the use of existing health protocols and respondents' opinions on the application of IoT in the health sector, especially the application of health protocols. The observation results showed that there were still many people who did not use masks and did not check their body temperature if they wanted to enter a place. The results of questionnaires and interviews were obtained with 93% saying yes that the built product was feasible and would help the spread of the coronavirus. The implementation of Arduino system design, ultrasonic sensors, python programming, and OpenCV resulted in a hardware design that is able to detect masks and body temperature without direct interaction between security officers and guests/students. The result is that if you don't use a mask, the alarm sounds, but if you wear a mask, the alarm doesn't sound. If the temperature is detected above 37.50 C, the servo will be closed which means that the user cannot enter the location, while if the temperature is detected below 37.50 C, the servo will open.
Uji Performansi pada Mesin Pengurai Sabut Kelapa dengan Modifikasi Pisau Pengurai Suhendra Suhendra; Winda Apriani; Irma Fahrizal
Jurnal Engine: Energi, Manufaktur, dan Material Vol 6, No 2 (2022)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v6i2.1239

Abstract

Coconut coir can be processed into cocopeat and coco fiber. In the chopping process, the chopping mechanism has a critical role that will determine the results of the chopping off of coconut coir. Based on these conditions, in this study, the development of a chopping mechanism was carried out by modifying the chopper blade to improve the chopper of coconut coir. The purpose of this study was to modify the coconut coir chopper blade, perform performance tests and calculate the increased performance after modification. Modification of the chopper mechanism on the coconut coir chopper machine is done by replacing the type of chopper blade with an iron rod with a diameter of 4 mm which is sharpened at the end. The test data includes data on the capacity of coconut coir chopping, the percentage of cocopeat, the percentage of coco fiber, the percentage of unprocessed coconut coir, the percentage of material loss, and the increase in performance after modification. The modified coconut coir chopper mechanism has specifications of 240 mm long, 100 mm diameter, 39 blades, and ± 14 mm high. The test was carried out at a rotary speed of the chopper mechanism of 720 rpm. Based on the test result, the capacity of chopping coconut coir using a modified coconut coir chopper machine is 7,93 kg/hour, producing 45,57% cocopeat, 36,15% coco fiber, 13,15% coconut coir unprocessed and the loss reached 5,13%. Modifications on the chopper blade are proven to increase the performance of the coconut coir chopper machine by 297%.
Kualitas papan partikel dari limbah serat kelapa muda dan styrofoam untuk kebutuhan dunia industri Markus Nanda Andika; Enda Apriani; Syaiful Mansyur; Sumpena Sumpena
Jurnal Engine: Energi, Manufaktur, dan Material Vol 6, No 2 (2022)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v6i2.1165

Abstract

Waste of young coconut fiber can potentially be used as reinforcement for new particleboard material. This potential agricultural waste is quite large in Indonesia. Styrofoam waste is also a problem to date. This is because the use of styrofoam as a food wrapper is still quite high in Indonesia. Besides being environmentally friendly, this particleboard also has economic value in the industrial world. Young coconut waste is crushed with a coconut fiber decomposing machine. Styrofoam as an adhesive is dissolved with gasoline. Each proportion of raw material for young coconut fiber: styrofoam, which is 25: 75 (%), 50: 50 (%), and 75: 25 (%).The test results of the mechanical properties of the particleboard with Composition III showed better results than the particleboard with Composition I and Composition II, which obtained an average MoE value of 832.69 kgf / cm2, an average MoR value of 12.10 kgf / cm2, and the average IB value of 2.01 kgf / cm2.

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