Garuda - Garba Rujukan Digital

Light Synergy: Solar Cell Output Optimization through Light Convergence Method (Integration of Convex Lens and Light Reflection) Ahmad Eko Suryanto; Sukardi Sukardi; Agung Samudra; Pri Ariadi Cahya Dinata
VANOS Journal of Mechanical Engineering Education Vol 10, No 1 (2025)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v10i1.31569

This study experimentally examines how integrating a convex (Fresnel) lens and a reflector affects solar cell output performance, analyzing impacts of variations in lens distance, illuminance, and associated temperature changes. Experimental methodology involved testing various lens-to-cell distance configurations under both natural sunlight and artificial lighting. Results under direct sunlight demonstrate significant enhancement: a Fresnel lens positioned at an optimal 10 cm distance achieved a peak power output of 0.939 W, a 199.04% increase compared to baseline power (0.314 W) measured without optical components. Reflector use proved beneficial by redirecting unabsorbed light onto the solar cell's active surface and promoting more uniform distribution of concentrated light. This potentially reduces severe localized temperature gradients (hot spots), even as overall cell temperature increased due to high illuminance levels from light concentration, although specific temperature correlation analysis warrants further study. However, system effectiveness was negligible under tested artificial lighting conditions, highlighting a dependency on natural sunlight characteristics. These findings underscore potential for utilizing simple, cost-effective optical components to substantially optimize solar energy harvesting, particularly for applications in environments with consistent sunlight exposure, thereby advancing sustainable renewable energy solutions.

A Systematic Literature Review of Integrated Learning Models for Skills Development in Industry-Academia Partnerships: Preparing Workforce for Industry 4.0 Ricky Cahyasari Putra; Mokhamad Syaom Barliana; Mumu Komaro; Aam Hamdani
VANOS Journal of Mechanical Engineering Education Vol 10, No 1 (2025)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v10i1.31918

The Industry 4.0 revolution has created significant skills gaps between formal education outcomes and evolving industry requirements, necessitating innovative industry-academia partnerships. This systematic literature review analyzes integrated learning models addressing these challenges. Following PRISMA guidelines, we searched Scopus, Web of Science, ERIC, and Science Direct databases (2021-2025) using keywords combinations of "industry-academia partnerships," "integrated learning models," and "vocational education." From 119 initial articles, 42 met inclusion criteria after duplicate removal and quality assessment using MMAT. Thirteen distinct learning models were identified: Competency-Based Training, Work-Integrated Learning, Work-Based Learning, Teaching Factory, Teaching Industry, Production-Based Education and Training, Cooperative Education, Vocational Pedagogy, Simulated Work Environment, Industrial Incubator, Apprenticeship Plus, School-Industry Partnership, and Technopark. Results demonstrate that strategic integration of multiple models creates more comprehensive educational ecosystems than individual implementations. A holistic framework categorizing models into five groups provides practical guidance for contextual adaptation based on institutional capacity and industry needs.

Comparative CFD Analysis of NACA 0012 and NACA 4415 Airfoils at Varying Angles of Attack on Aircraft Wings Using ANSYS Fluent Medyawanti Pane
VANOS Journal of Mechanical Engineering Education Vol 10, No 1 (2025)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v10i1.31929

During takeoff and approach to land, all aircraft move at low speed and high lift so that the wing is one of the main components of an airplane that has the basic function of being able to produce good aerodynamic performance characteristics so that objects can be lifted and maintain their position in the sky. In this study, an airfoil geometry with the NACA 0012 and NACA 4415 series was tested using ANSYS Fluent software at a speed of 200 m/s. To obtain maximum performance in this geometry, a variation of the angle of attack from 0° to 20°, was given so that the lift and drag force were obtained from each angle of attack. From the simulation and calculation results, the highest lift coefficient and drag coefficient in the NACA 0012 Airfoil simulation are at an angle of attack of 20°, is 0.5106 and 0.07829. Meanwhile, in the NACA 4415 Airfoil simulation, the highest lift coefficient is at an angle of attack of 20°, is 0.64623 and 0.08238.

Student Learning Needs in Basic Machining Practices in the Department of Mechanical Engineering Education Andrian Riyadi; Andhita Mustikaningtyas; Arya Yusuf; Zevanya Valerina Zahra
VANOS Journal of Mechanical Engineering Education Vol 10, No 1 (2025)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v10i1.29462

This research was conducted in order to answer problems in terms of learning basic machining practices where increasingly advanced technology requires the use of equipment and teaching materials that are increasingly advanced as well to form student competencies needed by the world of work. This study aims to determine the needs of students in learning basic machining practices at the Department of Mechanical Engineering Education FT UNY. The research method used is descriptive quantitative using a free description questionnaire in the form of Google Form as a data collection instrument. The population of this study were the 1st year students of the Mechanical Engineering Education study program, while the sample was the 33 students of 1st year students at Mechanical Engineering Education study program who were taking basic machining practice courses. The results of the research showed that 100% of students stated that it needs improvement on workshop facilities and infrastructure, 33.3% of students stated the needs to increase the skills and abilities of lecturers, 36.4% of students stated the needs of the skills and abilities of technicians, and 42.4% of students stated the needs of improvement on teaching materials. In conclusion, students need improvement in various aspects of learning, even though some students are satisfied with their current learning.

Characteristics of Pin Profile Variations in Friction Stir Welding (FSW) Joints of High Density Polyethylene (HDPE) And Polypropylene (PP) on Mechanical Properties Ramadhani, Risky; Darsono, Febri Budi; Bahatmaka, Aldias; Kriswanto, Kriswanto; Prasdika, Tegar Oki; Azara, Salsa Bila
VANOS Journal of Mechanical Engineering Education Vol 10, No 1 (2025)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v10i1.32501

In the Friction Stir Welding (FSW) process, the pin profile is one of the key factors in determining the quality of the joint because it directly affects the material flow in the joint area and the heat distribution generated during welding. Therefore, this study aims to determine the characteristics of pin profile variations in high-density polyethylene (HDPE)-polypropylene (PP) joints. Three types of pin profiles were used: threaded cylindrical pins, triangular pins, and grooved tapered cylindrical pins. The feed rate was 15 mm/min, the feed depth was 3.96 mm, and the rotating speed was 930 rpm. Hardness, tensile, bending, and macro-photo tests were conducted to determine the mechanical properties of the joints. The results showed that the grooved tapered cylindrical profile pin obtained the highest average value for hardness at 62.7 SHD, and tensile strength at 11.1 MPa. The lowest average values were obtained for the threaded cylindrical profile pins at 61.6 SHD, and 4.2 MPa. Flexural strength with the highest average value of 13.9 MPa was obtained for the triangular profile pin, while the lowest average value of 4.9 MPa was obtained for the threaded cylindrical profile pin. The strength test results, and macro photographs show that the shape and design of the profile pins play an important role in heat generation through friction as well as the control of material flow dynamics, which directly determines the structural integrity and mechanical properties of the joint.

Analyzing Temperature Distribution in Multiple Fin Geometries to Optimize Heat Transfer Efficiency Devia Gahana Cindi Alfian; Dicky Januarizky Silitonga
VANOS Journal of Mechanical Engineering Education Vol 10, No 1 (2025)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v10i1.28606

This study is quantitative research using Computational Fluid Dynamics (CFD) simulations to optimize pin fin design. Samples include aluminum pin fins with three different geometries: circular, square, and cone, and side lengths of 5 mm, 10 mm, and 15 mm. CFD simulations are conducted to quantitatively analyze temperature distribution across the surface and height of the fins. Results show that the highest temperature is localized at the base plate and decreases along the fin height. Circular and square fins demonstrate more uniform temperature distributions, while cone fins show significant gradients between base and tip. Smaller fin side lengths result in greater temperature differences. This research provides a detailed understanding of how fin geometry impacts heat transfer efficiency and temperature distribution, offering valuable insights for the development of more efficient fin designs in thermal management applications.

Development of Video-Based Learning Media on the Fuel Systems Subject to Improve Student Learning Outcomes Sigit Purnomo; M. Gilang Arka Pratama; Alfat Khaharsyah; Muhammad Hakiki; Radinal Fadli; Kukuh Wahyudin Pratama
VANOS Journal of Mechanical Engineering Education Vol 10, No 1 (2025)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v10i1.29422

Development of Video-Based Learning Media on Fuel System Subjects to Improve Learning Outcomes of SMK Muhammadiyah 1 Moyudan Students. Thesis. Vocational Education Study Program in Mechanical Engineering. Faculty of Teacher Training and Education, Sarjanawiyata Tamansiswa University Yogyakarta, 2024. This research aims to: 1. Develop appropriate video-based learning media for students to improve learning outcomes. 2. Test the feasibility of video-based learning media on fuel system subjects for SMK Muhammadiyah Moyudan students. 3. Improve students’ learning outcomes in the subjects taught.This research is a research and development (R&D) study using the ADDIE development model: Analyze, Design, Development, Implementation, and Evaluation. The development media is in the form of instructional videos. The data analysis technique uses descriptive quantitative. The research results show that: 1) This research produces EFI Fuel System instructional videos. 2) The EFI Fuel System instructional video is very feasible to use based on the validation results of material experts 1 and 2 with an average score of 82% and the media expert validation score of 91%. 3) Student responses show a very good category for use with a score of 87%. The development of the use of instructional video media was tested during the pretest with an average score of 53% and posttest 87%. The improvement in learning outcomes measured using the N-Gain formula obtained 0.3≤0.57≤0.7, which can be categorized as moderate, so the EFI Fuel System video-based learning media product is feasible to use for learning media.

Evaluation of the Implementation of Teacing Factory in SMK Cordova Margoyoso Pati Central Java Muhammad Zaenal Abidin; Rabiman Rabiman; Samsul Hadi; Alfat Kahaharsyah
VANOS Journal of Mechanical Engineering Education Vol 10, No 1 (2025)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v10i1.29308

This study aims to determine the suitability of the implementation of the Teaching Factory at SMK Cordova Margoyoso Pati, Central Java, using the CIPP evaluation model (Context, Input, Process, Product). The background of this research is the limited synchronization between school-based industrial learning and real industrial practices, which has led to a gap between students’ competencies and industry needs. Initial observations found several problems such as inadequate facilities, limited involvement of industry partners, and a lack of systematic implementation guidelines for Teaching Factory. These issues have raised concerns regarding the effectiveness and sustainability of the program. This research uses a mixed-method approach with quantitative and qualitative methods conducted in an exploratory sequential manner. Data were collected through observation, interviews, questionnaires, and documentation during April–May 2024. Data validity was ensured through triangulation, as well as validity and reliability tests. The research subjects consisted of 30 students, 2 mentor teachers, and 1 school principal. The results show that the implementation of Teaching Factory at SMK Cordova Margoyoso in: 1) aspects of context, input, process, and product according to teachers and students are in the “very suitable” category. 2) accumulatively, these aspects fall into the “appropriate” category. However, several areas require further improvement, such as stronger collaboration with industry, regular updates to learning materials, and more structured evaluation procedures. Overall, the suitability of the Context, Input, Process, and Product aspects is in the appropriate category. Therefore, continuous improvement is necessary to optimize the quality and outcomes of the Teaching Factory implementation.Evaluation, CIPP Method, Teaching Factory, Vocational Education, Industrial Partnership

Teaching Factory Management Strategy on Light Vehicle Engineering Expertise Competency in SMK Muhammadiyah Mungkid Yoga Hermawan; Sukirman Sukirman; Achadi Budi Santosa
VANOS Journal of Mechanical Engineering Education Vol 10, No 1 (2025)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v10i1.31114

Teaching factory is a learning model that integrates theoretical and practical learning processes in schools by creating conditions that resemble the industrial world. The purpose of this study is to provide an overview of the teaching factory management strategy for light vehicle engineering expertise competencies at SMK Muhammadiyah Mungkid in improving students' competency and work readiness. This study uses a qualitative approach with a case study model with sources including the principal, vice principal for curriculum, head of teaching factory and industry partners. Data sources are taken from in-depth interviews, observations and analysis of learning administration documents. To validate the data used by comparing one source with another then comparing the results of the interview and data obtained from the results of the document review. The results of the study indicate that teaching factory management carried out with the stages of planning, organizing, implementing, effective and efficient supervision, through the integration of link and match learning involving industry partners in implementing a learning environment that is in accordance with industry standards, has been proven to improve students' competency and work readiness.

Meta-Analysis: The Effect of Problem-Based Learning in Improving Students' Critical Thinking in Vocational Education Ridhwan Anthony; Wagino Wagino; Rahmat Desman Koto; Erzeddin Alwi; Wawan Purwanto; Donny Fernandez
VANOS Journal of Mechanical Engineering Education Vol 10, No 1 (2025)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v10i1.29826

Problem-based learning (PBL) is widely recognized as an innovative teaching strategy that engages students in active learning through real-world problem-solving. This meta-analysis systematically evaluates the effectiveness of PBL in enhancing students' critical thinking abilities across vocational and technical education contexts. The study analyzed 30 research articles published between 2016 and 2024 using quantitative data from experimental and control groups. Following a rigorous five-step meta-analysis methodology, research data was collected through the Harzing's Publish or Perish program from Google Scholar, coded systematically, and analyzed using effect size calculations. Results revealed a significant positive impact of PBL on critical thinking development, with an effect size of 0.8, indicating a moderate to strong effect according to established criteria. The experimental classes implementing PBL achieved substantially higher post-test scores (mean=73.93) compared to control groups (mean=65.14). These findings demonstrate that PBL significantly enhances students' critical thinking capabilities and learning outcomes through collaborative problem-solving, active knowledge construction, and practical application of concepts. The study concludes that PBL represents an effective pedagogical approach for developing the analytical and problem-solving skills essential for vocational education graduates in today's complex professional environments.

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name
-

Contact Email
-

Phone
-

Journal Mail Official
-

Editorial Address
-

Location
Kab. serang,

Banten

INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name -

Contact Email -

Phone -

Journal Mail Official -

Editorial Address -

Location Kab. serang, Banten INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
-

Contact Email
-

Phone
-

Journal Mail Official
-

Editorial Address
-

Location
Kab. serang,

Banten

INDONESIA