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논문 기본 정보

자료유형
학술저널
저자정보
Seung-IL Choi (Korea Polytechnics) Hafizur-Rehman (Gyeongsang National University) Yoon-Sub Eom (Gyeongsang National University) Myoung-Kuk Ji (Young Jin Forging Co.) Jun-Hyo Kim (Mokpo National Maritime University) Han-Shik Chung (Gyeongsang National University) Hyo-Min Jeong (Gyeongsang National University)
저널정보
한국동력기계공학회 동력시스템공학회지 한국동력기계공학회지 제17권 제2호
발행연도
2013.4
수록면
78 - 86 (9page)

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In this research, dilute colloidal suspension alumina nanofluids were prepared by dispersing alumina nanoparticles in DI water and ethylene glycol as base fluids. Particle size analyzer and TEM test results revealed that the size of the alumina nanofluids(3wt% and 5wt%) with dispersion time 3hrs were 46㎚ and 60㎚ respectively. Thermal conductivity of these alumina nanofluids was measured by means of hot wire technique using a LAMBDA system. For water based alumina nanofluids, thermal conductivity enhancement was from 2.29% to 3.06% with 5wt% alumina at temperatures ranging from 15 to 40℃. Whereas in case of ethylene glycol based alumina nanofluids under the same temperature range, thermal conductivity enhancement was from 9.6% to 10% with 5wt% alumina. An enhancement of 37% average convective heat transfer was achieved with 5wt% alumina nanofluids at Re of 1,100.

목차

Abstract
1. Introduction
2. Thermal Properties of Alumina Nanofluids
3. Results and discussion
4. Conclusion
References

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UCI(KEPA) : I410-ECN-0101-2014-500-003596225