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논문 기본 정보

자료유형
학술대회자료
저자정보
Udaya Kumar G (국민대학교) Hee Joon Lee (국민대학교)
저널정보
대한기계학회 대한기계학회 춘추학술대회 대한기계학회 2018년도 학술대회
발행연도
2018.12
수록면
1,859 - 1,862 (4page)

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In this work, the inter-nanowire distance in metal nanowires were varied to improve the boiling performance of copper surface with water as boiling fluid. Copper and silver nanowires with different inter-nanowire distance were fabricated using template assisted electrodeposition technique. Alumina templates with different interpore distances (260 ± 20 nm, 320 ± 20 nm and 360 ± 20 nm) and diameter of 200 nm were utilized. Electrodeposition conditions like voltage and time were optimised to obtain nanowires of near constant height and different surface density coverage. The nanowire coated surfaces were characterized using XRD, FESEM and confocal microscopy to observe the chemical composition, purity, surface topography, dimensions and also the surface roughness. Both the cavity density and cavity size were observed to increase with increase in the inter-nanowire distance. The pool boiling experimental setup was validated and the repeatability of the values were found to be satisfactory. In addition to the decrease in the value of boiling incipience superheat, both the values of critical heat flux (CHF) and heat transfer coefficient (h) were found to increase as compared to the bare copper surface.

목차

Abstract
1. Introduction
2. Experimental setup
3. Experimental procedure
4. Data reduction
5. Metal nanowire growth over copper substrate
6. Result and Discussion
References

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