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Development Solar Cell Trainer (SCT) as Learning Media on Renewable Energy Sukardi Sukardi; Agung Samudra; Ahmad Eko Suryanto; Syarpin Syarpin
VANOS Journal of Mechanical Engineering Education Vol 8, No 2 (2023)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v8i2.22799

Starting from the limitations of learning media on renewable energy material, the idea of developing a Solar Cell Trainer (SCT) was sparked. The purpose of this research is to develop a SCT as a learning media on renewable energy material that can help the learning process become easy and fun. This research is a Research and Development (R&D) which aims to produce a SCT and test its effectiveness. The effectiveness of the SCT trainer is seen from the aspects of Content, Learning Communication Media, Implementation Power and User Response. The R&D procedure is divided into 3 stages, namely: preliminary studies, product development, and evaluation and revision. The object of research involved 1 media expert lecturer and 35 students as users. The data collection technique used a questionnaire which then the results were analyzed descriptively. The results showed that the content and media aspects of learning communication were in the good category with a score of 82.5; while the implementation power and user response to the SCT media were in the good category with a score of 80.9. The conclusion of this research shows that SCT media is suitable for use in learning.

The Effect of Cryogenic Treatment Temperature on the Mechanical Properties and Microstructure of 440C Martensitic Stainless Steel Indah Uswatun Hasanah; A. Ali Alhamidi; Rachmat Suryana
VANOS Journal of Mechanical Engineering Education Vol 8, No 2 (2023)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v8i2.21717

The use of stainless steel worldwide is increasing due to its favorable mechanical properties, such as high hardness, corrosion resistance, and wear. One of the martensitic stainless steels is SS 440C. One of the main effects of increasing the significant carbon content is lowering the final martensitic temperature (MF) of the steel. If this temperature is below room temperature, the quenching process leaves austenite in the microstructure. This is commonly known as retained austenite (RA). In general, minimizing the number of RAs is recommended, as they can cause excessive wear. Therefore, the aim this research is for reduce the retained austenite content in SS 440C steel with a cryogenic treatment process. The cryogenic treatment was carried out for 50 minutes at temperatures of -80, -110, and -140°C and compared with non-cryogenic treatment to determine the residual austenite, hardness, and wear resistance. The highest hardness and wear resistance values were obtained from cryogenic treatment at -140°C at 58 HRC and 2.2 x 10-3 mm3/m. The metallographic results produce a martensite microstructure, residual austenite, and carbide phases. XRD analysis on cryogenic treatment samples at -140°C yielded structures of iron bcc, iron fcc, M7C3, and M23C6 compounds.

Preventive Maintenances of Waste Crushing Equipment at Subang State Polytechnic Indra Indra; Adhan Efendi; Yohanes Sinung Nugroho
VANOS Journal of Mechanical Engineering Education Vol 8, No 2 (2023)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v8i2.21269

The research in this final project aims to determine the preventive maintenance schedule for the plastic waste smelter and to determine the application of preventive maintenance to the plastic waste smelter. The maintenance process for this tool uses preventive maintenance with inspection, small repair, medium repair and overhaul (ISMO) methods. The implementation method of waste smelter into plastic involves data collection through direct observations of the smelter area, component identification, maintenance schedule planning, expert validation, and routine preventive maintenance execution. The research findings indicate that the systematic and scheduled application of maintenance effectively preserves the optimal performance of the smelter machine. These measures not only enhance operational efficiency but also reduce the risk of damages and potential downtime that could disrupt the production process, contributing to the sustainability and quality of plastic waste processing.

Implementation of Android Application-Based Learning Media on Motorcycle Electrical Maintenance Materials in Vocational High Schools Sigit Purnomo; Tri Pamungkas; Arif Bintoro Johan; Elyas Djufri
VANOS Journal of Mechanical Engineering Education Vol 8, No 2 (2023)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v8i2.22454

Purpose of this study was to produce learning media and test the feasibility of learning media based on android applications at Vocational High Schools. The type of research used in this research is implementation research. The subjects in the study were 31 students of class XI TBSM Vocational High Schools. The data collection instrument used quantitative descriptive analysis to determine the feasibility of learning media. The results of this study indicate: (1) Development research produces learning media for motorcycle electrical maintenance materials for students of class XI TBSM with the development process through the following stages: (2) Android-based learning media is categorized as feasible to use in learning to get validation results from Experimental class of 87.5%, Control class 78.5%, So it can be concluded that learning with Android is more effective for students.

Leadership as a Factor in Maintaining Quality Assurance in Technology and Vocational Education and Training: A Systematic Literature Review Quienera Joshua; Supriyanto Supriyanto; Tutin Aryanti; Mervyn Wong Hsin Jyi; Emmanuel Obobi Tettehfio
VANOS Journal of Mechanical Engineering Education Vol 8, No 2 (2023)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v8i2.21574

This article focuses on the concept of leadership, which involves managing organizations or groups of individuals, particularly in the context of TVET institutions and sectors. Quality assurance, which measures the level of excellence in comparison to similar processes, is crucial in TVET schools to determine competence and global competitiveness. The article aims to explore the impact of leadership on managing quality in vocational schools and examines various aspects considered for quality control. This study utilizes the Systematic Literature Review, and the data was gathered from reputable sources, specifically Google Scholar, encompassing research conducted between 2018 and 2023. The analysis employed rigorous inclusion and exclusion techniques. The selected articles delve into the impact of leadership skills on quality assurance within the context of vocational education. The findings underscore the crucial role of leadership in guaranteeing educator competence, refining curriculum standards, and establishing effective quality control measures.

Development of an Integrated Industry-Based Learning Model to Improve Electric Vehicle Learning Tools Work Readiness of Vocational Students Fanani Arief Ghozali; Bambang Sudarsono; Fatwa Tentama; Surahma Asri Mulasari; Tri Wahyuni Sukesi; Sulistyawati Sulistyawati; Herman Yuliansyah; Lu'lu' Nafiati; Adelia Saharani; Prabandari Listyaningrum
VANOS Journal of Mechanical Engineering Education Vol 8, No 2 (2023)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v8i2.22553

Vocational schools need to start addressing unemployment right away since it is a serious issue. Work readiness is prepared with the demands of the industrial world in mind. The objective of this study is to create and evaluate industry-based integrated learning models for EVL+i, or electric vehicle auxiliary, subjects. The research and development (R&D) design used was Richey and Klein's design. This research involved 34 students, 6 teachers from the automotive engineering department of SMK Muhammadiyah 2 Tempel, and 4 professionals from the automotive industry. Practical performance tests and interviews were used as data collection methods. Based on the research results, it can be said that the EVL+i model was successfully developed and implemented in three stages of research. The EVL+i model can improve 6 aspects of competence of automotive vocational students, namely aspects of integrity competence, cooperation, discipline, work area knowledge, work completeness and time efficiency. The six aspects of competence have increased from the category of less good to very good with an average score of 1.82 in the limited trial and 3.72 in the extended trial.

Application of Augmented Reality (AR) In Vocational Education: A Systematic Literature Review Siddiq Darmawan; Mumu Komaro
VANOS Journal of Mechanical Engineering Education Vol 8, No 2 (2023)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v8i2.20841

In education, Augmented Reality has been widely used to complement the standard curriculum. This article aims to examine how the application, and impact of the use of AR in Vocational Education. The Systematic Literature Review method is used to identify, study, evaluate, and interpret Augmented Reality in vocational education. Research data were identified by help of the PRISMA 2020 form. Article was collected from Science Direct database. There were 454 articles. After being selected using inclusion and exclusion criteria, the data used were 14 articles. The results of the study reveal that AR is applied in learning as an innovative learning medium, a new approach to learning to improve students' understanding of knowledge, and skills and provide a concrete learning experience. The integration of AR in education has the impact of increasing students' understanding and learning experience, promoting positive attitudes, making the learning process fun and interesting and learning efficiency.

Wing Simulation Using Naca 2412 and 2415 Airfoils with Variations in Angle of Attack for Lift and Drag Medyawanti Pane
VANOS Journal of Mechanical Engineering Education Vol 8, No 2 (2023)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v8i2.22321

The geometry of an airfoil plays a critical role in shaping an aircraft's performance, especially during maneuvering. This study emphasizes the necessity of conducting a comprehensive geometric analysis to better understand the effects of airfoil design. In pursuit of optimizing airfoil performance, we conducted extensive tests on NACA 2412 and 2415 series airfoil geometries using the ANSYS Fluent software. The tests employed Aluminum Alloy 1067 material and a wind speed of 300 m/s, encompassing a range of angle of attack variations from 0 to 180 degrees. The simulation results provided valuable insights into the velocity and pressure distributions surrounding the airfoil. Of particular interest, at an angle of 15 degrees, the NACA 2412 airfoil exhibited a maximum drag force of 69.670 N and a maximum lift force of 550.300 N. The corresponding drag and lift coefficients were 0,1516378 N and 1,1977364 N. For the NACA 2415 airfoil, the maximum drag and lift forces were 71.470 N and 564.500 N, respectively, with corresponding drag and lift coefficients of 0,1541963 N and 1,2179072 N.

The Analysis of Factors that Influence Students Choosing a Mechanical Engineering Education Study Program at Yogyakarta State University Andrian Riyadi; Aulia Majid
VANOS Journal of Mechanical Engineering Education Vol 9, No 1 (2024)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v9i1.24158

The Mechanical Engineering Education study program has students with various backgrounds, so the study program needs to identify why its students have various backgrounds, looking at the factors that influence them. The results of this identification are used as material for designing learning and marketing strategies to the community. The aim of this research is to find out what factors influence students in choosing a study program. The research method used is qualitative descriptive research using a questionnaire in the form of Google Form for data collection. The data processing procedures used include data collection, data reduction, data presentation, and drawing conclusions. The respondents involved were 60 students from the Mechanical Engineering Education study program, consisting of bachelor and master levels. The results of this research are that there are several factors that influence students in choosing a Mechanical Engineering Education study program, namely image, ambitions, job prospects, and interests. The interest factor influences the most, namely 18 students or around 30%, the image factor influences 13 students or around 21.6%, the ambitions factor influences 12 students or around 20%, and the job prospects factor influences 12 students or around 20%. A total of 5 students or around 8.3% chose a study program that was not according to their wishes or was forced to do so. All these factors positively influence students in choosing the Mechanical Engineering Education study program, because most students choose study programs because of their own wishes, while only a small percentage do not match their wishes.

Utilization of Solar Power Plants to Drive Organic Waste Shredding and Grinding Machines Rahmad Samosir; Bambang Widodo; Budiarto Budiarto; Manogari Sianturi; Medyawanti Pane
VANOS Journal of Mechanical Engineering Education Vol 9, No 1 (2024)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v9i1.25014

Solar power plants continues to experience good development and even PLTS can be used to overcome environmental problems, so this research aims to utilize renewable energy as a driving force for waste processing machines by designing organic waste chopping and grinding equipment. The specified motor power is 2 HP or 1.5 kW with 275 rpm, so the number of panels required is 12 pieces which are converted into AC from DC by the inverter. Based on power and rotation, the torque calculation results obtained are 2760 kg cm, the shaft diameter is 18.86 mm, the belt type is type A with a top belt width of 12.5 mm and a thickness of 8 mm, and transverse pegs with a width of 8 mm, a thickness of 7 mm. and 40 mm long based on ISO 2292 (according to pulley hub thickness). Based on the calculations and transmission design, a waste processing tool was built and then tested. From the tests, it was found that the power produced by PLTS was 1.5583 kW at 2239 Lux light to chop up 2 kg of organic waste.

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Contact Name
-

Contact Email
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Phone
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Journal Mail Official
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Editorial Address
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Location
Kab. serang,

Banten

INDONESIA