메뉴 건너뛰기
.. 내서재 .. 알림
소속 기관/학교 인증
인증하면 논문, 학술자료 등을  무료로 열람할 수 있어요.
한국대학교, 누리자동차, 시립도서관 등 나의 기관을 확인해보세요
(국내 대학 90% 이상 구독 중)
로그인 회원가입 고객센터 ENG
주제분류

추천
검색
질문

논문 기본 정보

자료유형
학술대회자료
저자정보
하피줘 라흐만 (경상대학교) 여철모 (경상대학교) 정현권 (경상대학교) 정효민 (경상대학교) 정한식 (경상대학교)
저널정보
대한설비공학회 대한설비공학회 학술발표대회논문집 대한설비공학회 2011년도 하계학술발표대회
발행연도
2011.7
수록면
100 - 103 (4page)

이용수

표지
📌
연구주제
📖
연구배경
🔬
연구방법
🏆
연구결과
AI에게 요청하기
추천
검색
질문

초록· 키워드

오류제보하기
Nanofluids are kind of engineering material, with a new challenge for thermal sciences provided by nanotechnology. Nanofluids are being investigated for numerous applications, including cooling process, manufacturing process, chemical process pharmaceutical process and medical treatment process etc. Nanofluids are basically the suspension of solid nanoparticles with size typically 1- 100 ㎚ in base fluid. In current research, Alumina size less than 50㎚ has been used. The tested fluids have been prepared by dispersing Al₂O₃ into DI water at three different conditions by using 1%wt, 3%wt. and 5%wt. concentrations of alumina without using any surfactant. To ensure the best dispersion and stability of alumina nanoparticles in DI water ultrasonicator with 47㎑ frequency and dispersion time until 3hrs has been used. Particles sedimentation test of these different condition nanofluid samples has been critically observed until 30days. As per result, after 30 days approximately 28% particles sedimentation of Al₂O₃ nanofluid with ultrasonicator dispersion time 3hrs recorded in 3%wt and 21% recorded in 5%wt concentration. Also particle size system (PSS) result of 3%wt and 5%wt concentration of Al₂O₃ nanofluid with dispersion time 3hrs achieved as 46nm and 60nm respectively. The present research will be helpful to investigate the dispersion behavior of water-based Al₂O₃ nanofluid with changing rate of time and also helpful to select different conditions for making Al₂O₃ nanofluid without using surfactants or any other surface additives to use further in heat transfer processes.

목차

ABSTRACT
1. Introduction
2. Experimental Procedure
3. Result and Discussion
4. Conclusion
Acknowledgment
References

참고문헌 (0)

참고문헌 신청

이 논문의 저자 정보

이 논문과 함께 이용한 논문

최근 본 자료

전체보기

댓글(0)

0

UCI(KEPA) : I410-ECN-0101-2013-553-000706568