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All Journal Mekanika: Majalah Ilmiah Mekanika Jurnal Ilmiah Wahana Pendidikan
Yuliansyah, Alfian Fahrul
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RANCANG BANGUN APLIKASI ONLINE UNTUK TEST MINAT BAKAT SISWA SMA DENGAN METODE RIASEC Palaguna, I Nyoman Terang Trimakna; Yuliansyah, Alfian Fahrul; Sudarma, Made; Suyadnya, I Made Arsa
Jurnal Ilmiah Wahana Pendidikan Vol 10 No 1 (2024): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.10469670

Abstract

This study aims to design and develop online applications with the aim of identifying the interests and talents of high school students using the RIASEC (Realistic, Investigative, Artistic, Social, Enterprising, Conventional) method. This application is intended to help students understand their interests and talents as well as provide guidance in choosing the appropriate educational and career path. The RIASEC method has proven to be an effective tool in analyzing individual interests and talents based on six personality types. This method will be integrated into the application to provide relevant questions and tests to assess student interest and talent. The application will be developed with a user-friendly interface to facilitate easy navigation and accurate evaluation for students. This research will focus on high school students as the main research subject. The data required for the operation of the application will be collected through surveys and interviews involving students from various high schools. In addition, a literature review will be carried out to ensure the accuracy and reliability of the RIASEC method in identifying students' interests and talents. The results of this study are expected to demonstrate the effectiveness of online applications in identifying the interests and talents of high school students using the RIASEC method. The application can be a valuable tool for students, parents and teachers in guiding students towards educational and career choices that match their interests and talents.
Effect of Hole Geometry Shape in Vortex Generators on Fluid Output Temperature: Computational Fluids Dynamics Validation Mohd Rosli, Mohd Afzanizam; Prasetyo, Singgih Dwi; Dwi Prija Tjahjana, Dominicus Danardono; Yuliansyah, Alfian Fahrul; Arifin, Zainal
Mekanika: Majalah Ilmiah Mekanika Vol 22, No 2 (2023): MEKANIKA: Majalah Ilmiah Mekanika
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/mekanika.v22i2.71340

Abstract

Several methods to enhance heat transfer can be classified into three categories: active, passive, or hybrid. Among these methods, Vortex Generators (VGs) are one passive heat transfer enhancement device widely used in heat exchangers. This study aims to explore the geometric shapes of VGs equipped with longitudinal holes and examine their influence on the outlet temperature of the fluid. For the analysis in this research, a three-dimensional Computational Fluid Dynamics (CFD) simulation using ANSYS Fluent software was employed. The increased heat transfer and flow resistance in the VG geometry were evaluated based on previous research for validation. The study results demonstrate that the simulation produces fluid outlet temperature values and velocity contours that closely resemble the results obtained from the reference study. The validation error of this research was found to be only 0.02%, indicating high quality and accurate simulation results. Furthermore, the study compared various geometries of the VG holes in the system. Among these geometries, hexagonal-shaped VG holes exhibited high-velocity contours on the VG side while achieving the lowest fluid outlet temperature at approximately 303.53 K. The findings of this study serve as a basis for further developments in enhancing the efficiency and performance of heat exchangers using VGs.
Co-Authors Dwi Prija Tjahjana, Dominicus Danardono I Made Arsa Suyadnya Made Sudarma Mohd Rosli, Mohd Afzanizam Palaguna, I Nyoman Terang Trimakna Singgih Dwi Prasetyo Zainal Arifin