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All Journal Jurnal Teknik Mesin Jurnal Teknologi Reaktor Nuklir Tri Dasa Mega Rekayasa Mesin Media Teknika ASEAN Journal on Science and Technology for Development International Journal of Applied Sciences and Smart Technologies Abdimas Altruis: Jurnal Pengabdian Kepada Masyarakat
Budi Setyahandana
Sanata Dharma University
Aerospace Engineering Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Social Sciences Other

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IMPLEMENTASI TEKNOLOGI MBG UNTUK OPTIMALISASI AERASI PADA KOLAM BUDIDAYA LELE DI KANUTAN, BANTUL Astyanto, Achilleus Hermawan; Winarbawa, Heryoga; Roshanti, Fatma; Dyaksa, Gilang Argya; Seen, Michael; Kusbandono, Wibowo; Rines, Rines; Purwadianto, Doddy; Sugiharto, Budi; Setyahandana, Budi; Mustain, Fahra Diky; Jaladri, Stefano
ABDIMAS ALTRUIS: Jurnal Pengabdian Kepada Masyarakat Vol 8, No 2 (2025): Oktober 2025
Publisher : Universitas Sanata Dharma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24071/aa.v8i2.10505

Abstract

In the present work, a simple aeration technology, utilizing the concept of a microbubble generator (MBG), was applied to an aquaculture field. It aims to support aeration by increasing the dissolved oxygen (DO) in the water. Subsequent supporting activities were carried out, comprising design, optimization and manufacturing, installation, and trials of MBG units, followed by site exposures. During one of the exposures, two sessions covering a discussion and another practical work were conducted. The working principle of the MBG was briefly explained in the first session, while the installation and operation were practically elaborated in the second session. Additionally, two units of MBG appliances were granted to be applied on the exposure site, namely Usaha Budidaya Ikan Senandung Betta. During the following exposure, the MBG implementation was evaluated through a series of DO measurements. Here, the measurement reached a range of 5.7 – 5.9 mg/L by operating the MBG. This means that the MBG increases the DO by around 1.5 mg/L.
Enhancing the Cooling Effectiveness Utilizing a Tapered Fin Having Capsule-Shaped Cross-Sectional Area Numerically Simulated Using Finite Difference Method Pratama, Nico Ndaru; Setyahandana, Budi; Purwadianto, Doddy; Dyaksa, Gilang Argya; Winarbawa, Heryoga; Seen, Michael; Rines, Rines; Mardikus, Stefan; Kusbandono, Wibowo; Lukiyanto, Y.B
International Journal of Applied Sciences and Smart Technologies Volume 07, Issue 2, December 2025
Publisher : Universitas Sanata Dharma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24071/ijasst.v7i2.12362

Abstract

This paper reports the results of our research on improving the cooling of an engine using fins. This problem is important to discuss because various parts of the world have utilized machining technology. When the engine operates, it produces heat. This heat reduces the efficiency of the engine's performance. In this problem, we developed a tapered fin method with a capsule cross-section to enhance cooling performance. The fin consists of two different materials that are perfectly joined. In this paper, the fin analysis is performed using the explicit finite difference numerical method. This method simulates the heat distribution on the fins. The results of our research include temperature distribution, heat flow rate, efficiency, and fin effectiveness in unsteady-state conditions with variations in material composition. The highest heat flow rate, fin efficiency, and fin effectiveness were achieved with a fin material composition of copper and aluminum, yielding an efficiency value of 0.89 and an effectiveness of 20.7. Our research results offer potential for the industry to design fins for innovative applications.
Co-Authors A. Prasetyadi Achilleus Hermawan Astyanto Agung Bambang Setyo Utomo Budi Sugiharto Christianto, Yohanes Eko Deo Clinton Maranatha Simangunsong Doddy Purwadianto Erasmus Prakasita Fajar Nurjaman Freddy Saputra Romamti-Ezer Taebenu Gilang Argya Dyaksa Hardi Hidayat Heryoga Winarbawa I Gusti Ketut Puja I Made Wicaksana I Made Wicaksana Ekaputra Jaladri, Stefano Litaay, Arnold A. I. Lukiyanto, Y.B Martanto Martanto Mustain, Fahra Diky Petrus Kanisius Purwadi Pratama, Nico Ndaru R.B.P. Harsilo Raden Benediktus Dwiseno Wihadi Rines Rines Rines, Rines Ronny Dwi Agusulistyo Roshanti, Fatma Seen, Michael Sigit Santosa Stefan Mardikus Stefan Mardikus Wibowo Kusbandono Yohanes Eko Christianto Yohanes Sardjono Yohannes Sardjono Yohannes Sardjono Yulwido Adi