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All Journal Rotasi Rekayasa Mesin Sinergi REKAYASA JAIS (Journal of Applied Intelligent System) R.E.M (Rekyasa Energi Manufaktur) Jurnal Jurnal Pengembangan Rekayasa dan Teknologi Jurnal Surya Masyarakat Conference on Innovation and Application of Science and Technology (CIASTECH) JIPI (Jurnal Ilmiah Penelitian dan Pembelajaran Informatika) JATI (Jurnal Mahasiswa Teknik Informatika) Jurnal Teknik Industri Terintegrasi (JUTIN) TIN: TERAPAN INFORMATIKA NUSANTARA Information Science and Library Jurnal Rekayasa Energi dan Mekanika Jurnal Ahsana Media : Jurnal Pemikiran, Pendidikan dan Penelitian ke-Islaman Jurnal Serambi Abdimas Journal Computer Science and Informatic Systems : J-Cosys Mechanical Engineering for Society and Industry Jurnal Teknik Mesin Mechanical Xplore Journal of Mechanical Engineering, Science, and Innovation Sinergi Polmed : Jurnal Ilmiah Teknik Mesin Dulang: Jurnal Pengabdian Kepada Masyarakat Jurnal Penelitian Hukum Indonesia (J-PeHI) SmartComp Tematik Jurnal Pengabdian Sosial Journal of Halal Industry Studies Jurnal Polimesin Joong-Ki Annaba: Jurnal Ilmu Jurnalistik Systematic Literature Review Journal JIFA (Journal of Islamic Finance and Accounting) Jurnal DIMASTIK
Khoirudin Khoirudin, Khoirudin
Department of Computer Applied Technology, Nanchang University, China 999 Xuefu Road, Honggutan New District, Nanchang, Jiangxi Province, P.R. China Telp:+86-791-83969099 Fax:+86-791-83969069
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Journal : Rotasi

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Experimental Study of Natural Convection Heat Transfer on A Vertical Cylinder with Varying Heat Flux Rakasiwi, Galih; Khoirudin, Khoirudin; Supriyanto, Agus
ROTASI Vol 26, No 3 (2024): VOLUME 26, NOMOR 3, JULI 2024
Publisher : Departemen Teknik Mesin, Fakultas Teknik, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/rotasi.26.3.23-29

Abstract

The most commonly used heat transfer in cooling and heating systems is convective heat transfer. Natural convection heat transfer is typically employed in cooling systems with immersion cooling such as in data centers and transformers. In addition to cooling systems, natural convection is also utilized in heating systems as seen in nuclear reactors. More specifically, natural convection around heated cylinders has widespread applications. The flow of natural convection around vertical heated cylinders is a critical concern in various applications, including vertical tubes within HVAC systems, the heating of electronic components, and the storage of nuclear rods in waste facilities. In this study, a test apparatus in the form of a box measuring 300x200x150 mm with a 650-watt heater installed in the center was used. The heater is jacketed with an outer diameter of 38mm and a length of 195mm. Thermocouple type K are installed on the heater jacket wall and fluid. Convective heat transfer is transiently calculated with constant heat flux. The research results show that in the first phase, there is a significant increase in heat flux of 512.82 W/m2, 769.23 W/m2, and 1025.4 W/m2, respectively, at rates of 0.34, 0.46, and 0.61 ℃/minute. In phase 4, the temperature increase is relatively small, with rates of 0.01, 0.02, and 0.03 ℃/minute, respectively. Heat transfer coefficients (h), Nusselt numbers (Nu), and Rayleigh numbers (Ra) increase with increasing heat flux.
Co-Authors Adiwibowo, Zakaria Afgani, Abduh Al Afif Hakim Agus Suprihanto Agus Supriyanto AHMAD JUNAEDI Akhmad Junaedi Amar Amar Amir Amir Amri Abdulah Amri, Saeful April Firman Daru Aria Hendrawan, Aria Arif Wibowo, Ludvi Atmoko Nugroho Aulia Nanda, Rizki Azizah Azizah Azizah, Renata Lintang Azmi, W. H. Azzaki, Adnan Badriyah, Fatikhatul Banu Witono Basit, Arul Bernadus Very Christoko Budi, Pangga Urip Setio Budiansyah, Ade Cepi Cahyo, Tegar Dwi Cahyono, Yono Cepi Budiansyah, Ade Dewi Nurdiyah, Dewi Dhawy, Luay Raihan Dodi Mulyadi Dodi Mulyadi Dwicahyo, Tegar Fahrizin, Nazar Fazin, Nazar Fazrin, Nazar Fuadiah, Shiema Jamalah Galet Guntoro Setiaji Gunata, Krida Pandu Gymanstiar , Salman Fahrizal Hadi, Soiful Hananto, Agustia Hanif, Mohammad Burhan Hassanudin, Wahyu Maulana Hidayat, Syahrul Taufik Ines Heidiani Ikasari Irfan Rizky Hutomo Irfani, Tomas Karyadi Karyadi Khusna, Arina Kumbarasari, Shanti Lailisya Putri, Purnama Lamijan Lamijan, Lamijan Lintang Azizah, Renata Miftahudin, Moh Muahemin, Enjang Muji Setiyo Murtalim, Murtalim Muzammil, Ach Nanda, Rizki Aulia Noer Sasongko Nugroho, Fajar Raditya Nur Wakhidah Nur Widyartha, Yogi Nurtriana Hidayati Panata, Helmi Prasetio Patya, Dhea Intan Pratama, Tito Chaerul Prima, Juan Candy Prind Triajeng Pungkasanti, Prind Triajeng Putri, Nela Aulina Rahdiana, Nana Rahman, Mumammad Arif Rajab, Dede Ardi Rakasiwi, Galih Ramadan, Trisa Ramadani, Yovi Adhi Ransanoi, Teep Riana, Rati Ridwan Rizki Aulia Nanda Rohman Rosaria, Stefani Dewi Safril Safril Sanusi Sanusi Saputra Sigalingging, Wanri Saputra, Ridhwan Salahuddin Saputra, Ridhwan Shalahuddin Saputra, Rio Handika Setiarso, Galih Shieddieque, Apang Djafar Sudarjat, Muhammad Fauzaan Fikri Sudarjat Suhara, Ade Sukarman Sukarman Sukarman Sukarman Sulistiyanto Sulistiyanto, Sulistiyanto Supriyanto, Danang Susanto Susanto Susilo, Hendri Syamsudin Syamsudin Tantri, Andini Kartika Taufik Ulhakim, Muhamad Taufik Ulhakim, Muhammad Taufiqur Rokhman, Taufiqur Thiyana, Thyana Tikamori, Ghazi Titin Winarti Titis Handayani Tri Toto Wiharjianto, Muhammad Ulhakim, Mumamad Taufik Vensy Vydia Wahyu Christanto, Febrian Widodo, Muhammad Faizal Agung Wieke Dewi Suryandari Zaidar, Chilfi ZAMAN, BADROE