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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 5 Documents
 1 
Search results for , issue "Vol 6 No 01 (2024): Edisi Juni" : 5 Documents clear
Performance Testing of Cross Wind Turbine Model with Capacity of 10 W Achdi, Endang; Sonawan, Hery; Setiadi, Yudi
Mestro: Jurnal Teknik Mesin dan Elektro Vol 6 No 01 (2024): Edisi Juni
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47685/mestro.v6i01.527

Abstract

Wind is a significant potential renewable energy source for electricity generation. Currently, there are two commonly used types of wind turbines: horizontal-axis and vertical-axis wind turbines. Both types are designed to harness the energy from horizontally moving wind. However, in reality, wind often moves erratically, especially in urban areas with tall buildings. To address this, a cross-axis wind turbine model has been developed to capture energy from randomly moving wind. This turbine model has 10 horizontal blades and 5 vertical blades. Previously, performance testing of this wind turbine model used a 60 W capacity dynamometer generator, but the wind turbine's output power didn't reach the required high torque and rotational speed. In this research, a 40 W capacity generator was used to resolve the previous issues. The parameters measured in this testing include wind speed, turbine rotational speed, voltage, and current. The testing was conducted at wind speeds of 5.3 m/s, 5.8 m/s, 6.3 m/s, and 6.8 m/s, with variations in the blade pitch angles set at 20°, 25°, and 30°. The results of the testing and analysis showed that the maximum performance coefficient of this wind turbine was 7.54%, achieved at a wind speed of 6.3 m/s with a blade pitch angle of 25° and a tip speed ratio of 1,08. The higher the wind speed, the shorter the time required to reach a constant rotational speed. At a wind speed of 6.3 m/s with a blade pitch angle of 25°, it took 30 seconds to reach a constant rotational speed.
Analysis Effect Blade Distance on the Performance of Microhydro Power Plants Prihastuty, Endang; Yudisworo, Waluyo Djoko; Tohasan, Achmad; Maldiesa, Maldiesa; Subiyanta, Erfan
Mestro: Jurnal Teknik Mesin dan Elektro Vol 6 No 01 (2024): Edisi Juni
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47685/mestro.v6i01.528

Abstract

Microhydro power plants are small-scale power plants that use hydropower as their driving force. The hydropower used can be in the form of water flows such as irrigation canals, rivers or natural waterfalls. Microhydro power plants principally utilize the height and amount of water flow discharge per second on the water flow of irrigation canals, rivers or waterfalls. This flow of water rotates the turbine shaft so as to produce mechanical energy. One of the components in microhydro power plants is a turbine. The type of turbine used in low-head water flow is a screw turbine. This study discusses the effect of blade distance on the performance of microhydro power plants. The change in blade spacing given is 15 cm, 20 cm and 22 cm spacing with a 40-degree blade slope. From changes in blade spacing greatly affect the power and efficiency of the turbine. The highest power is generated by the use of 15 cm blades of 1267 watts. The efficiency of the turbine is also affected by the power generated by the turbine itself. The highest turbine efficiency is produced by the use of a blade distance of 15 cm of 37.25%, the closer the distance between the blades the greater the power and efficiency generated in the turbine itself.
Performance Test of Commercial Air Coolers with Cooling Pads Made from Banana Midrib Fiber and Honeycomb Sonawan, Hery; Sofia, R Evi
Mestro: Jurnal Teknik Mesin dan Elektro Vol 6 No 01 (2024): Edisi Juni
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47685/mestro.v6i01.530

Abstract

The use of air conditioning equipment in dry season is very necessary. Several users have used Air Conditioner (AC) as air conditioning, although there are users who apply air coolers which are considered more environmentally friendly air conditioning. An air cooler is a tool that cool the air while increasing the humidity. This tool uses the principle of the water evaporation process to cool the air or is called an evaporative cooler. In this paper, the performance of a commercial air cooler that uses a built-in cooling pad in the form of honeycomb is reported and its performance is compared with a cooling pad made from banana midrib fiber material.By implementing experiments on commercial air coolers, experiments were carried out by measuring the airflow in the air cooler using Arduino-based data acquisition. From the experiments, the built-in cooling pad has better performance than banana midrib fiber. The decrease in airflow temperature when using a honeycomb cooling pad reaches 0.8 ℃, slightly higher than banana midrib fiber which reaches 0.6 ℃. Honeycomb saturation efficiency is also higher, reaching 50 – 85% compared to 40 – 70% for banana midrib fiber. Likewise, the EER value of honeycomb is higher than banana midrib fiber. However, banana midrib fiber has great potential if it is used as a cooling pad material, it can be used as an alternative material for evaporative coolers.
Rear Wheel Drive Sprocket Gear Transmission Design for Electric car Tohasan, Achmad; Prihastuty, Endang; Yudisworo, W. Djoko
Mestro: Jurnal Teknik Mesin dan Elektro Vol 6 No 01 (2024): Edisi Juni
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47685/mestro.v6i01.539

Abstract

Electric vehicle engines are the same as vehicles with combustion motors, namely they are an assembly of several mechanisms consisting of three main parts, namely the drive, the power transmission system and the driven part. The electric car used for this research is a conversion of a petrol car, where the drive uses a 3 KW BLDC electric motor. The BLDC motor shaft power is transmitted to the axle pinion shaft using a sprocket gear transmission. So an analysis of the sprocket gear design, both ratio, size (type), strength and age of the sprocket gear to be used needs to be carried out. The initial step is to calculate the design power by looking at the correction factors in the table for the type of electric motor drive, then determining the chain number on the graph by first calculating the torque moment. The linear speed of the chain that occurs is influenced by the size of the gears and the input rotation of the electric motor, the greater the speed, the smaller the torque, so the gear ratio needs to be considered in determining the maximum linear speed. After knowing the chain plan number, it can be tested by calculating whether the chain number technically meets good security or not. In this research, the sprocket chain design, namely chain roller number 40 with a maximum load of 33.74 kg, is good, namely greater than sf = 6.
Information System of Teacher Assignment Journal in Wooi State Junior High School Rakhmadi, Aris; Yusrifa, Khumaila Masfarina
Mestro: Jurnal Teknik Mesin dan Elektro Vol 6 No 01 (2024): Edisi Juni
Publisher : Fakultas Teknik Universitas 17 Agustus 1945 Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47685/mestro.v6i01.552

Abstract

The teaching journal recording system is a document of evidence of teaching implementation that can guarantee the quality and quantity of the learning process. Wooi State Middle School, Wonawa District, Yapen Islands Regency, Papua still records teaching journals manually by handwritten. The aim of this research is to develop a teacher assignment journal information system as a solution to the problems experienced by Wooi State Middle School in the form of scattered journal summaries. This system development uses prototyping and implementation using HTML, PHP, CSS, Javascript, MySQL, and the CodeIgniter Framework. Research has produced a journal information system that provides website-based journal recording and recording features. The research used the Blackbox testing method to test all available features, and this method stated that everything worked well. The system also passed testing using the System Usability Scale (SUS) method which resulted in a score of 74.62, which means it is acceptable.

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