Article Per Year (5 Year)
p-Index From 2020 - 2025
2.232
P-Index
This Author published in this journals
All Journal Jurnal Teknologi Reaktor Nuklir Tri Dasa Mega JURNAL PASTI (PENELITIAN DAN APLIKASI SISTEM DAN TEKNIK INDUSTRI) Jurnal Ilmu Teknik dan Komputer Jurnal Industri Kreatif dan Kewirausahaan Jurnal Media Teknik dan Sistem Industri Jurnal Pengabdian Kepada Masyarakat Patikala Jurnal Riset Teknik Industri Proceeding Mercu Buana Conference on Industrial Engineering Jurnal Polimesin
Roswandi, Iwan
Unknown Affiliation
Humanities Automotive Engineering 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 Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Social Sciences Transportation

Published : 14 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 1 Documents
Search
Journal : Jurnal Polimesin

 1 
Experimental investigation of the impact of non-uniform pipe diameters on natural circulation and dimensionless flow in in a rectangular loop Roswandi, Iwan; Pamitran, Agus Sunjarianto; Juarsa, Mulya; Budiman, Arif Adtyas
Jurnal Polimesin Vol 23, No 3 (2025): June
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v23i3.6666

Abstract

This experimental study investigates the effect of non-uniform pipe diameters on natural circulation flow within a rectangular loop related to non-dimensional numbers, such as the Reynolds number and the Grashof number. The study aims to understand how variations in pipe diameters influence natural circulation, which is critical for thermal engineering applications, including passive cooling systems for nuclear reactors and thermal management in electronic devices. Previous research by Vijayan et al., Garibaldi et al., and Elton et al. explored the impact of loop geometry on flow stability and heat transfer efficiency. In this study, a loop system with varying pipe diameters operates without a pump at atmospheric pressure. Data on fluid flow and temperature distribution were recorded at different temperature settings. The results show that fluid flow increases with temperature, decreasing fluid density and enhancing buoyancy forces. This increases the Reynolds number, reaching turbulent flow at 70°C throughout the loop. However, the 2-inch diameter hot leg remains in the transition region up to 90°C. The experimental correlation shows higher Grashof numbers than previous models, highlighting the significant impact of pipe diameter variations on buoyancy forces and flow transitions. These findings emphasize the importance of non-uniform pipe geometries in influencing natural circulation flow and its transition from laminar to turbulent flow, providing valuable insights for designing systems with non-uniform pipe configurations.
Co-Authors Abdurrahman, Afif Agus Ismail Alfaruqi, Muhammad Hilmy Amelia, Almira Citra Anggie Alviandy Budiman, Arif Adtyas DIDI JUNAEDI Didi Junaedi Dimas, Dimas Fitriani, Rohmah Gunawan, Hyundianto Arif Hendro Tjahjono HERY, HERY NURMANSYAH Mulya Juarsa Nurmansyah, Heri Pamitran, Agus Sunjarianto Pratama, Oki Riady, Selamet RR. Ella Evrita Hestiandari Sanda Sanda Uly Amrina Widyanty, Winda Zulkifli, Arif