Sugumaran, Luvindran and Mohd Nashrul, Mohd Zubir and Newaz, Kazi Md Salim and Tuan, Zaharinie and Suazlan, Mt Aznam and Aiman, Mohd Halil (2023) Experimental investigation of nucleate pool boiling heat transfer characteristics on modified copper surface via laser-structured microstructures. In: IOP Conference Series: Earth and Environmental Science. 6th International Conference on Clean Energy and Technology 2023, CEAT 2023 , 7 - 8 June 2023 , Hybrid, Penang. pp. 1-7., 1281 (012062). ISSN 1755-1307 (Published)
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Abstract
This study aims to evaluate the performance of pool boiling heat transfer on a structured surface subjected to constant heat flux. A nanosecond laser ablation was used to create different surface profiles on copper samples. Specifically, a series of step-like microstructured surfaces with varying secondary groove widths were fabricated to investigate their effect on pool boiling heat transfer performance of distilled water. The results indicated a significant enhancement in heat transfer performance for the laser-structured surfaces compared to the smooth surface at low heat flux. This improvement was attributed to the increased surface area, nucleation frequency, and nucleation site density. However, at higher heat flux, the surface with a smaller secondary groove width (LS 2) exhibited a decline in heat transfer performance, which was likely due to larger bubble escaping resistance. In contrast, the surface with a larger secondary groove width (LS 1) demonstrated the best heat transfer performance. The current work would help in finding an optimum surface structuring design for gaining higher boiling heat transfer performance which benefits industries dealing with thermal management processes.
| Item Type: | Conference or Workshop Item (Lecture) |
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| Additional Information: | Indexed by Scopus |
| Uncontrolled Keywords: | Heat flux; Heat transfer coefficient; Pool boiling |
| Subjects: | T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General) T Technology > TJ Mechanical engineering and machinery T Technology > TL Motor vehicles. Aeronautics. Astronautics |
| Faculty/Division: | Faculty of Mechanical and Automotive Engineering Technology |
| Depositing User: | Mr Muhamad Firdaus Janih@Jaini |
| Date Deposited: | 30 Aug 2024 00:17 |
| Last Modified: | 30 Aug 2024 00:17 |
| URI: | http://umpir.ump.edu.my/id/eprint/41921 |
| Download Statistic: | View Download Statistics |
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