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All Journal ASEAN Journal of Systems Engineering Jurnal Penelitian Saintek Rotasi Jurnal Simetris Rekayasa Mesin Journal of Engineering and Technological Sciences Jurnal Rekayasa Mesin Journal of Energy, Mechanical, Material and Manufacturing Engineering Conference SENATIK STT Adisutjipto Yogyakarta Jurnal Perikanan Universitas Gadjah Mada Prosiding Seminar Nasional Pakar Prosiding Seminar Nasional Multidisiplin Ilmu International Journal of Applied Sciences and Smart Technologies ASEAN Journal of Chemical Engineering JOURNAL OF INFORMATION SYSTEM MANAGEMENT (JOISM) Journal of Mechanical Engineering Jurnal Ilmiah Teknik Mesin Poros Teknika STTKD: : Jurnal Teknik, Elektronik, Engine Journal of Mechanical Design and Testing (JMDT) METAL : Jurnal Sistem Mekanik dan Termal Industrial Research Workshop and National Seminar Atom Indonesia
Deendarlianto
Departemen Teknik Mesin Dan Industri, Fakultas Teknik, Universitas Gadjah Mada. Jl. Grafika No. 2, Kompleks UGM, Yogyakarta 55281, Indonesia
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Other

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PENGARUH PENAMBAHAN RADIUS PADA KECEPATAN DAN FREKUENSI SLUG DI DAERAH DOWNSTREAM T-JUNCTION MINICHANNEL Hananto, Leila Hanjani; Indarto; Untung Surya Dharma; Deendarlianto
Jurnal Rekayasa Mesin Vol. 15 No. 2 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i2.1586

Abstract

Multiphase flow channel is commonly applied in various industrial contexts, including lab-on-a-chip, nuclear power plants, microelectronics cooling systems, and chemical microreactors. Equipment ranging from mini to micro sizes plays a vital role in enhancing heat and mass transfer processes during the mixing of two or more phases. Non-uniform phase distribution during the passage of a two-phase flow through a T-junction can cause performance issues in the downstream region. A problem arising from the use of T-junctions is the occurrence of slugs. An experimental study was conducted to investigate the effect of varying bend radius on the flow characteristics in the downstream region of a T-junction minichannel, such as slug velocity and frequency. The slug velocity was researched in the downstream region of the horizontal minichannel T-junction. The working fluid used was air as the gas phase and water. The findings indicate that there is a linear relationship between the superficial velocities of air and water and the corresponding slug velocity in the downstream area of the horizontal minichannel T-junction, as observed through the utilization of a high-speed camera and MATLAB program for image processing. It has been observed that the local velocity within the channel increases as the corner radii increase towards the downstream region.
SIMULASI NUMERIK ALIRAN FLUIDA PADA KINCIR AIR MENGGUNAKAN METODE SLIDING MESH INTERFACE Agato, Agato; Deendarlianto, Deendarlianto; Indarto, Indarto; Alfeus Sunarso
Jurnal Rekayasa Mesin Vol. 15 No. 2 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i2.1634

Abstract

This research is aimed to investigate the accuracy and cost-effectiveness of numerical simulation method for the study of flow in a waterwheel system by comparing the results to the results of experiment, as well as by comparing the computational load of various solution schemes. The simulation is performed using Ansys Fluent with sliding mesh interface (SMI) method to treat the interface between rotating waterwheel region and static channel region. The governing equations are solved using the SIMPLE and Coupled schemes, and the effects of spatial and temporal resolutions are investigated. In general, the values of torque and power and the flow patterns obtained using numerical simulation are in a good agreement with those obtained using the experiment, which confirms the reliability of the simulation method. Considering the accuracy and computational load, it is recommended to use the Coupled scheme instead of the SIMPLE scheme for numerical simulation using SMI method.
The Effect of Loop Inclination on Natural Circulation Mass Flow Rate and Heat Removal Inside Rectangular Passive Cooling Loop Budiyanto, N. R.; Deendarlianto, D; Yuliaji, D.; Oktaviandi, R.; Raharjo, E. P. A.; Mariyadi, S. A.; Pamungkas, A. E.; Setiawan, P. H.; Budiman, A. A.; Juarsa, M.
Atom Indonesia Vol 51, No 3 (2025): DECEMBER 2025
Publisher : National Research and Innovation Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/aij.2025.1467

Abstract

The use of passive cooling systems as a reactor safety measure has become a key approach to preventing future incidents similar to the Fukushima Daiichi NPP accident. These systems operate based on natural circulation, a process driven by temperature differences and elevation between the heat source and heat sink. Key design factors, such as the inclination angle of the rectangular loop, significantly influence this circulation. This study aims to investigate the effects of different inclination angles of the rectangular loop and variations in the initial water temperature in the Water Heating Tank (WHT) on the flow rate and heat removal capability. The research was conducted experimentally using a natural circulation rectangular loop facility, FASSIP-04 Ver.0, which has an inner diameter of 26.64 mm, a rectangular loop height of 2280 mm, and a width of 780 mm. The experimental variations were achieved by adjusting the water temperature inside the WHT to 50°C, 70°C, and 90°C. Meanwhile, the inclination angle of the loop was set to 30°, 60°, and 90° mass flow rate and heat removal capability was influenced by both the loop inclination angle and the water temperature in the WHT. The highest values were observed at a 90° inclination angle and a set temperature of 90°C, with a mass flow rate of 0.0241 kg/s, and heat removal rates of qH = 0.791 kW, qC = 0.489 kW. The resulting buoyancy force was stronger under these conditions, leading to greater heat removal through natural circulation compared to free convection, thereby increasing both mass flow rate and heat removal efficiency.
Co-Authors . Agato Abd. Rasyid Syamsuri Achilleus Hermawan Astyanto Afisna, Lathifa Putri Agato, Agato Akhmad Zidni Hudaya Akmal Irfan Majid Al Huda, Luqman Al-amin, A. S. Aldy Franstanata Ritonga Alfeus Sunarso Alim Isnansetyo Alva Edy Tontowi Andhika Satria Pratama Anggita Gigih Wahyu Iriawan, Anggita Gigih Wahyu Ari Prasetyo Arif Widyatama Arirohman, Ilham Dwi Arista, E. P. Asroni Asroni Aswati Mindaryani Bambang Triyatmo Bardi Murachman Batubara, Yongki Benny Arif Pambudiarto Bertha Maya Sopha Budiman, A. A. Budiyanto, N. R. Calista Anjani Dwiputri Dannys Arif Kusuma Dedy Kurniawan Dodi Satriawan, Dodi Drajat Indah Mawarni Dwi Budi Santoso Dwi Yuliaji Eko Budiana Eko Nugroho Fahadha, Rizqa Ula Fajarningrum, Nurmala Dyah Farid Jayadi Fauzun Fauzun Fellando Martino Nugroho Fitrah Qalbina H. A. Gunawan, H. A. Hananto, Leila Hanjani Haslinda Kusumaningsih Heppy Kristiyani, Heppy I Indarto INDAH ISTIQOMAH Indarto Indarto Indarto - Indarto Indarto Indarto Indarto Indarto Indarto Indarto Indarto Indarto Indarto Indarto Indarto Indro Pranoto Kharisma, Sunandi Khoirun Nisa Alfitri Kumara Ari Yuana Kurniawan, Dondi Kusumaningsih, Haslinda Lathifa Putri Afisna M. Fendy Kussuma Hadi Sufyan M. Juarsa M. Rian Alif Madani Mariyadi, S. A. Maryadi , Shendy Akbar Medha, Akbar Yuga Adhikara Muhammad Fakhri Alfath Mulya Juarsa Nissaraly H.F. Nugroho, Fellando Martino Oktaviandi, R. Oktaviandi, Ryan Okto Dinaryanto Pambudiarto, Benny Arif Pamungkas, A. E. Rachmawan Budiarto Raharjo, E. P. A. Rio Budiman Romi Novriadi Roy Waluyo Rudy Kurniawan Rustadi Rustadi Samsul Kamal Samuel Hartono Samuel Hartono Septiana Ria Prihandita Setiawan, P. H. Setya Wijayanta Shima Bhaskara Ayuningrum Sinung Rahardjo Sudarja Supriyanto Supriyanto Teguh Wibowo Teguh Wibowo Teguh Wibowo Thomas S. W. Untung Surya Dharma Untung Surya Dharma, Untung Surya Wakhid Hasyim Wenang Wibawa Endra Juwana Wibawa Endra Juwana, Wibawa Endra Widodo, Gilang Destya Wiratni Budhijanto Wiratni Budhijanto Wiratni Wiratni Wiratni Wiratni, Wiratni Yuliaji, D. Yundari, Yundari Yusuf Rahman