지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2012.6
- 수록면
- 74 - 78 (5page)
이용수
이 논문의 연구 히스토리 (3)
2012
Effects on the heat transfer performance of sintered Fe/CNT composite powder coating on the internal surface of carbon steel tubes
K
,
istian A
,
vin Ada
외 6명
대한기계학회 춘추학술대회
2012.11
학술대회자료
Effects on the heat transfer performance of sintered CNT/Fe composite coated internal tube surface
K
,
istian A
,
vin Ada
외 7명
대한설비공학회 학술발표대회논문집
2012.06
학술대회자료
Effects on the heat transfer performance of sintered CNT/Cu composite coated internal pipe surface
K
,
istian A
,
vin Ada
외 7명
대한기계학회 춘추학술대회
2012.05
학술대회자료
- 이 논문의 후속연구가 궁금하신가요?
- 연관 학술논문 또는 학술발표를 통해 보다 발전된 연구결과를 확인하실 수 있습니다.
- 이 논문의 연구 히스토리 확인하기
초록· 키워드
오류제보하기
The heat transfer performance effects of CNT/Fe composite coated inside pipe surface was investigated. It was compared with other pipes used in some heat transfer equipment used today particularly pipes used in present heat exchangers.
The powder composite used in this experiment was created through ball milling at 900 rpm in 4 hours using an attrition ball mill. After creating the powder it is sprayed on the inside pipe surface of a carbon steel tube through electrostatic spraying then sintered at 600 °C for 8 hrs. The CNT and Fe powder are used as received and did not undergo any chemical processes.
The composite coating consists of iron as the base powder and different volume percent of CNT’s namely 5, 10, 15, 20 and 30 vol. % respectively. Another type of pipe used also is the plain carbon steel pipe as a standard reference and basis for analysis and interpretation of the results.
The heat transfer performance was obtained and compared with each other. Based on the result the CNT composite coating having a 20 vol. % CNT gives the highest heat transfer performance. Too much CNT or a composition of 30 vol. % in the composite affects the heat transfer performance of the pipe making it less effective due to the powder being too small and the coagulation of the powders during powder making and sintering process. The spiral pipe used also on this test gives a good result but lower when compared to the 20 vol. % CNT/Fe composite coating.
Surface characterization is done by FESEM imaging and EDX to identify whether a presence of CNT is observed in the composite coating. The pore size density is also analyzed through the use of pore size analyzer. Raman spectroscopy is used to identify structure change of the coating materials. The surface roughness was acquired by the use of Mitutoyo Surftest SJ-400 which immediately gives a direct average of the surface roughness being measured.
The powder composite used in this experiment was created through ball milling at 900 rpm in 4 hours using an attrition ball mill. After creating the powder it is sprayed on the inside pipe surface of a carbon steel tube through electrostatic spraying then sintered at 600 °C for 8 hrs. The CNT and Fe powder are used as received and did not undergo any chemical processes.
The composite coating consists of iron as the base powder and different volume percent of CNT’s namely 5, 10, 15, 20 and 30 vol. % respectively. Another type of pipe used also is the plain carbon steel pipe as a standard reference and basis for analysis and interpretation of the results.
The heat transfer performance was obtained and compared with each other. Based on the result the CNT composite coating having a 20 vol. % CNT gives the highest heat transfer performance. Too much CNT or a composition of 30 vol. % in the composite affects the heat transfer performance of the pipe making it less effective due to the powder being too small and the coagulation of the powders during powder making and sintering process. The spiral pipe used also on this test gives a good result but lower when compared to the 20 vol. % CNT/Fe composite coating.
Surface characterization is done by FESEM imaging and EDX to identify whether a presence of CNT is observed in the composite coating. The pore size density is also analyzed through the use of pore size analyzer. Raman spectroscopy is used to identify structure change of the coating materials. The surface roughness was acquired by the use of Mitutoyo Surftest SJ-400 which immediately gives a direct average of the surface roughness being measured.
목차
Abstract
1. Introduction
2. Experimental Procedure
4.0 Conclusion
5. References
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