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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 8 Documents
 1 
Search results for , issue "Vol 6, No 1 (2022)" : 8 Documents clear
Kaji Eksperimen Output Energi Termoelektrik TEG-SP1848-27145SA Dengan Sumber Panas Dari Solar Parabolic Trough Muhammad Taufiqurrahman; Gita Suryani Lubis; Muhammad Ivanto; Putro Setio
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.v6i1.927

Abstract

Solar energy is the energy that is most easily obtained in the conditions of our country which is in an area that is crossed by the equator. Energy that can be in the form of sunlight and heat from the sun can certainly be used as alternative energy to produce electrical energy. One technology that is able to utilize solar thermal energy is a solar parabolic trough system as a solar thermal collector. From the heat source produced, it is expected to be able to produce electrical energy generated by thermoelectric, where the thermoelectric heat side is obtained from the heat source in the solar parabolic trough. By conducting experiments to manufacture a power plant that utilizes a solar parabolic trough which is integrated with a thermoelectric type TEG-SP1848-27145SA as many as seven pieces, then the experimental data is taken from the device capable of producing electrical energy output. The output of electrical energy in the form of electrical voltage produced is strongly influenced by the difference in temperature on the hot and cold side of the thermoelectric, the greater the temperature difference, the greater the energy output that can be generated. From the experimental results, the highest temperature difference produced is 20.7oC with a current value of 85.93 mA and a voltage of 2.51 volts in the direction facing north, and the highest temperature difference produced is 11.5oC with a current value of 77.63 mA and a voltage of 2.15 volts in the direction facing east to west. The highest thermoelectric efficiency is 14.996% with the direction of the solar parabolic trough facing east to west.
DETEKSI SUHU TUBUH DAN MASKER WAJAH DENGAN MLX90614, OPENCV, KERAS/TENSORFLOW, DAN DEEP LEARNING Muchamad Malik
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.v6i1.910

Abstract

Digital image processing technology combined with sensors is currently being used. This technology can help various needs such as education, industry and health. During the COVID-19 crisis, people are required to wear masks for protection. The public is also required to check their temperature regularly, which will have a significant health impact. This can reduce the risk of transmitting the Covid-19 virus. In this study, the author uses a WebCam camera and a temperature sensor MLX90614 as a tool to monitor the use of masks and measure body temperature. The author uses OpenCV for digital image processing and Tensorflow as a deep learning method for mask detection. The result of this study is that Tensorflow can detect wearing a mask with 99% accuracy. The MLX90614 sensor can measure body temperature with 99% accuracy at a reading distance of 5 cm to 10 cm.
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.

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