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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 10 Documents
 1 
Search results for , issue "Vol 7 No 1 (2025): Edisi Juni" : 10 Documents clear
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.
Rancang Bangun Programmable Logic Controller ( P L C ) Menggunakan Mikrokontroler Pic16f877 Sebagai Media Pembelajaran Subiyanta, Erfan; Ibnu Analis, Faizul Wafa
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.v7i1.30

Abstract

Programable logic control (PLC) is a versatile microprocessor control designed to meet practical demands in industry such as in the automatic field. In the automatic field serves as a substitute for an electro mechanical system that is to replace a series of series of relays found in conventional process control systems. Therefore, in this thesis, a research on Design (PLC) Programable Logic Controller Based on PIC16F877 Microcontroller as Learning Media has been conducted.This Micro PLC consists of a minimum system PIC16F877 microcontroller circuit. Micro PLC testing only takes a few sample cases such as I / O (input output) testing of logic gates, counter testing and timer testing. How to upload a ladder diagram to a micro PLC via a computer using the K150 programmer and Microbrn software to upload the program to a micro PLC so that the input and output modules can work according to the ladder diagram programming that has been made. From the results of micro PLC testing can be used as a PLC learning media.
Analysis of the Effectiveness of E-Learning in Enhancing English Comprehension Among Electrical Engineering Students: A Case Study in Cirebon" Eliyawati, Eliyawati; Kurniawan, Zuki; Indriyani, Devia; Rosadah, Ros Awaliyah
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.v7i1.656

Abstract

This study aims to analyses the effectiveness of e-learning in enhancing the English comprehension of Electrical Engineering students in Cirebon. The research employs a quantitative method with a journal review approach to identify trends and the effectiveness of e-learning in English learning for engineering students. The findings indicate that e-learning significantly contributes to students' comprehension improvement, particularly in reading and listening skills. Students who actively use e-learning show a 30% increase in English comprehension scores compared to those who rely solely on conventional learning methods. A total of 75% of students reported that e-learning helped them better understand technical materials in English. However, challenges remain in student interaction and learning motivation, especially in speaking and writing skills. The conclusion of this study suggests that e-learning can be an effective learning medium with proper implementation strategies, including enhancing digital interaction and developing more engaging methods for students. REFERENCES Clark, R. C., & Mayer, R. E. (2016). E-Learning and the Science of Instruction: Proven Guidelines for Consumers and Designers of Multimedia Learning. John Wiley & Sons. Horton, W. (2006). E-learning by design. Pfeiffer Gok, T. (2016). The Effects of Social Networking Sites on Students’ Studying and Habits. International Journal of Research in Education and Science, 2(1), 85–93. Liaw, S. S., Huang, H. M., & Chen, G. D. (2007). Surveying instructor and learner attitudes toward e-learning. Computers & Education, 49(4), 1066-1080. https://doi.org/10.1016/j.compedu.2006.01.001 Rosenberg, M. J. (2001). E-learning: Strategies for delivering knowledge in the digital age. McGraw-Hill. Sun, P. C., Tsai, R. J., Finger, G., Chen, Y. Y., & Yeh, D. (2008). What drives a successful e-Learning? An empirical investigation of the critical factors influencing learner satisfaction. Computers & Education, 50(4), 1183-1202. https://doi.org/10.1016/j.compedu.2006.11.007 Universitas X. (2023). Laporan Survei Pemahaman Bahasa Inggris Mahasiswa Teknik Elektro. Penerbit Universitas X. Zhang, D., Zhou, L., Briggs, R. O., & Nunamaker, J. F. (2006) Instructional Video in E-Learning: Assessing the Impact of Interactive Video on Learning Effectiveness. Information & Management, 43(1), 15–27. Wu, J. H., Tennyson, R. D., & Hsia, T. L. (2015). A study of student satisfaction in a blended e-learning system environment. Computers & Education, 55(1), 155-164. Wu, W. H., Wu, Y. C. J., Chen, C. Y., Kao, H. Y., Lin, C. H., & Huang, S. H. (2015). Review of trends from mobile learning studies: A meta-analysis. Computers & Education, 59(2), 817–827. https://doi.org/10.1016/j.compedu.2012.03.016
A Mobile Sign Language Dictionary: Enhancing Communication for the Deaf and Mute Rakhmadi, Aris; Wulandari, Novita Desi; Rosad, Safiq; Syukri, Muhammad
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.v7i1.617

Abstract

Communication is fundamental to human interaction, yet individuals who are deaf or speech-impaired often face barriers due to limited accessibility to sign language resources. This study presents the development of a mobile sign language dictionary designed to enhance communication and learning. Traditional sign language dictionaries, whether in printed or video formats, present challenges in accessibility, usability, and portability. In contrast, a mobile application offers an interactive, efficient, and user-friendly solution. The proposed application integrates gesture recognition, video demonstrations, and text-based explanations to facilitate sign language learning. By leveraging artificial intelligence (AI) and cloud-based storage, the app ensures accurate sign recognition and provides a comprehensive database of gestures, including letters, numbers, root words, prefixes, suffixes, and commonly used phrases. A structured methodology involving requirement analysis, data collection, design, development, testing, and revision was applied to develop a functional and accessible tool. User testing demonstrated high engagement and learning effectiveness, with 85% of participants reporting increased comfort with mobile learning tools, 82.5% finding the app beneficial for sign language acquisition, and 90% improving their familiarity with sign words. These results confirm that a mobile sign language dictionary is an efficient educational tool that fosters inclusivity and communication accessibility. Future enhancements, including database expansion, additional sign language dialects, and interactive exercises, can further improve the application’s impact.
Interactive Motion-Sensing Game for Improving Physical Education in Students with Intellectual Disabilities Rakhmadi, Aris; Puspitasari, Yuliana; Yasin, Fatah; Sulistyo Nugroho, Yusuf; Fadlillah, Umi
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.v7i1.637

Abstract

Students with intellectual disabilities often face challenges in physical education due to limited motor coordination, reduced engagement, and difficulties following traditional instructional methods. To address this, motion-sensing technology, particularly Kinect-based educational games, presents a promising solution by offering interactive and gamified learning experiences. This study explores the development and implementation of a Kinect-based educational game designed to enhance motor skills and engagement in students with intellectual disabilities. The game focuses on throwing exercises, providing real-time feedback through visual and auditory cues to reinforce learning. The study was conducted at SLB-C YPSLB Surakarta, involving 20 students with intellectual disabilities and five special education teachers. A pre-test and post-test evaluation was used to assess students' motor skill improvement and engagement levels before and after using the game. The results demonstrated a 26.3% increase in throwing accuracy, a 26.9% rise in engagement levels, and a significant reduction in reaction time, indicating the game's effectiveness in enhancing physical coordination and participation. Teacher feedback highlighted the game's usability, ability to maintain student focus, and alignment with PE learning objectives. Although the findings showed positive learning outcomes, several challenges, such as the initial adaptation period and the need for a wider variety of games, were identified. Future research should focus on customizing difficulty levels, varying physical activities, and AI-powered adaptive learning to meet the needs of individual students. This study highlights the potential of motion-sensing educational games as an effective tool for inclusive and engaging physical education for students with intellectual disabilities.
Testing of the Condenser in the Distillation of Lemon Grass Essential Oil in Banjarnegara, Central Java Tohasan, Achmad; Prihastuty, Endang; Khilmi, Muhammad; Saleh, Abdurrahman
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.v7i1.664

Abstract

Essential oil of lemongrass has a high economic value as a raw material for the perfume, cosmetics, and aromatherapy industries. The efficiency of the steam distillation process greatly depends on the performance of the condenser in converting the vapor of essential oil into a liquid phase. To determine the effectiveness value of the condenser in the essential oil distillation system that affects the yield of the produced oil, a condenser test was conducted in the essential oil distillation system located in Banjarnegara, Central Java. From the test results, this research aims to analyze the influence of the condenser design and operational parameters on the yield and quality of lemongrass essential oil. The effectiveness measurement of the condenser located in Kilang 1, Banjarnegara, Central Java, with a boiler capacity of 1 ton and a tube length of 36 meters, resulted in an effectiveness of 67%. In the distillation process with a capacity of 1 ton and a tube length of 36 meters, essential oil was obtained amounting to 7 kg, with a yield of 7%. Meanwhile, in measuring the effectiveness of the condenser located at the 2nd refinery in Banjarnegara, Central Java, with a kettle capacity of 1 ton and a tube length of 56 meters, an effectiveness of 78% was achieved. In the distillation process with a capacity of 1 ton and a tube length of 56 meters, essential oil amounting to 10 kg was also obtained, with a yield of 1%. Keywords: Condenser, Essential oil, Effectiveness value, and Yield.
Perencanaan Strategis Sistem Informasi dengan Metode Ward and Peppard: Studi Kasus PT. Balatif Malang Ma’ruf, Zaenal
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.v7i1.669

Abstract

Kemajuan teknologi informasi semakin cepat karena telah berasimilasi dengan kehidupan sehari-hari khususnya pada dunia bisnis. PT. Balatif adalah Perusahaan yang bergerak di bidang farmasi. Penelitian ini telah melakukan analisis perencanaan strategis SI/TI dengan menggunakan metode Ward dan Peppard melalui serangkaian Analisa yaitu lingkungan eksternal dan internal bisnis disertai analisis SWOT, Value Chain, dan Mc Farlan Strageic Grid. Hasil penelitian pada PT. Balatif adalah sistem SI/TI yang masih terbatas karena proses integrasi sistem yang belum maksimal. Saran yang perlu dipertimbangkan adalah perlu adanya kerjasama dengan berbagai sumber yang ada.
Perancangan Prototipe Miniatur Pembangkit Listrik Tenaga Air Wasiran, Wasiran; 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.v7i1.670

Abstract

The prototype tool of the hydroelectric power plant is an engineering tool as a demonstration of a power plant that is moved by water. So the tool will be redesigned by researchers as a comparison of courses in mechanical engineering study programs, especially engineering thermodynamics courses. In the design of the tool will be designed using the solid work computer program. Then in the selection of design components that are used are easily obtained or within reach of purchasing the tool, namely the frame holder for the power plant using holo steel, a water pump using a 260 bit jet pump that uses 200 watts of electric power, electricity supply using an alternator that has 200 watts of electric power. The water-driven turbine is the process made using Pvc pipe which has a tilt angle on the blade of 30 o. turbine cover using acrylic material with a thick size of 10 mm, water reservoir using steel plate size 4 mm and lamp load that will be tested 100 watt capacity. At the capacity of this tool requires a cost of approximately Rp. 5,811,500,
Evaluasi Indeks Konsumsi Energi Listrik di Rumah Sakit Daerah Umum R.A. Kartini Jepara Kurniawan, Samuel; Safrizal, Safrizal; Arifin, Zaenal
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.v7i1.678

Abstract

This study aims to evaluate the electrical energy consumption index at the R.A. Kartini Regional General Hospital (RSUD Jepara). Electrical energy efficiency is a crucial aspect in the management of modern health facilities, especially in efforts to reduce operational costs and environmental impacts. Hospitals as facilities that operate 24 hours have high energy consumption, especially for medical equipment, air conditioning systems, and lighting. This study uses a quantitative descriptive analysis method by processing electricity consumption data in 2018 obtained from official hospital documents. The results showed that the total installed power at the R.A. Kartini Regional General Hospital Jepara reached 1,410,005 VA, with the largest distribution of energy use in medical devices (51.5%), air conditioning systems (38.7%), and mechanical equipment (20.7%) The hospital's Energy Consumption Index (IKE) was calculated at 146 kWh/m²/year, which is included in the "fairly efficient" category according to Indonesian national standards (180-280 kWh/m²/year). However, there is still room for increased efficiency, especially in air conditioning and lighting systems. The research findings show that the application of inverter technology in the AC system, replacing conventional lamps with LEDs, and optimizing the use of mechanical equipment can result in energy savings of up to 25-30%. This study recommends the implementation of a comprehensive energy management system, including periodic energy audits, increasing equipment efficiency, and educating staff about energy-saving practices. With these steps, RSUD R.A. Kartini Jepara can achieve the IKE target of 102-110 kWh/m²/year, approaching international best practices. In addition, this study also provides an important contribution to energy conservation efforts in the health sector, especially in supporting national and global policies on energy sustainability
Modification of Dynamic Voltage Restorer for Improved Power Quality in Industrial Electrical Networks Rosyadi, Marwan; Siswanto, Agus
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.v7i1.683

Abstract

Reliable power quality is a crucial factor in maintaining continuity and operational efficiency in industrial power grids. Power quality disturbances such as voltage sags, voltage swells, and interruptions can cause equipment damage, decreased productivity, and increased operational costs. Dynamic Voltage Restorers (DVRs) have proven effective in addressing voltage disturbances, but conventional devices have limitations, specifically, they are only able to compensate for voltage drops up to approximately 30% of the nominal value and cannot address interruption disturbances. This study proposes a modified DVR with the addition of an energy storage system and an adaptive control algorithm to expand the voltage compensation capabilities, including under extreme voltage sags and interruption disturbances. Simulation results show that the modified DVR is able to maintain load voltages close to the nominal value under various disturbance scenarios, thereby significantly improving the power quality and reliability of the industrial power grid.

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