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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2004.1
- 수록면
- 332 - 337 (6page)
이용수
초록· 키워드
오류제보하기
The use of gas absorption refrigeration machine has considerably increased because of the shortage of the electric power in the summer and the regulation of freon refrigerant. Gas absorption refrigeration machine consists of a condenser, a heat exchanger, supplying pipes. a radiator etc. This system is likely to be corroded by acid, dissolved oxygen and gases. Cavitation erosion-corrosion by flow velocity of cooling water may happen in absorption refrigeration machine. In these cases, erosion and corrosion occur simultaneously. Then, it makes a serious damage with synergy effect.
Therefore, this paper was studied on the cavitation damage of cupronickel(70/30) tube for gas absorption refrigeration machine. In the 30℃ tap water, linear polarization test and anodic polarization test were carried out for copper(C1220T-OL) and cupronickel(70/30) tube. Also, cavitation erosion-corrosion behavior of cupronickel(70/30) tube was considered. The main results are as following: (1) In the linear test, the corrosion current density of cupronickel(70/30) is higher than that of copper. (2) The erosion-corrosion rate of cupronickel(70/30) displayed later tendency than that of copper by vibratory cavitation in cooling water. (3) In cooling water, the progress mechanism of erosion-corrosion rate of copper and cupronickel(70/30) follows a pattern of incubation, acceleration, attenuation and a steady state period.
Therefore, this paper was studied on the cavitation damage of cupronickel(70/30) tube for gas absorption refrigeration machine. In the 30℃ tap water, linear polarization test and anodic polarization test were carried out for copper(C1220T-OL) and cupronickel(70/30) tube. Also, cavitation erosion-corrosion behavior of cupronickel(70/30) tube was considered. The main results are as following: (1) In the linear test, the corrosion current density of cupronickel(70/30) is higher than that of copper. (2) The erosion-corrosion rate of cupronickel(70/30) displayed later tendency than that of copper by vibratory cavitation in cooling water. (3) In cooling water, the progress mechanism of erosion-corrosion rate of copper and cupronickel(70/30) follows a pattern of incubation, acceleration, attenuation and a steady state period.
목차
Abstract
1. Introduction
2. Test material and experimental method
3. Results and discussion
4. Conclusion
References
참고문헌 (10)
참고문헌 신청
[학술지(정기간행물)] - / 1998 / Development of absorption systems 15 (5) : 335 ~ 342
[학술지(정기간행물)] - / 1998 / Absorbent and refrigerant management 15 (5) : 343 ~ 352
[학술지(정기간행물)] - / 2002 / The Effect of Temperature on Corrosion of Absorption Refrigeration Systems Using LiBr-H2O Working Fluids 26 (1) : 125 ~ 131
[학술지(정기간행물)] - / 1980. / Corrosion Inhibition of Carbon Steel Copper and 70/30 Cupro-Nickel by Sodium Tetraborate and Benzotriazole in Concentrated Lithium Bromide Solution at Elevated Temperature kazuo tan 29 (and masahiko itoh) : 233 ~ 238
[학술지(정기간행물)] - / / Engine Coolants Testing astm (705) : 81 1988 ~ 101
[학술지(정기간행물)] - / 1998 / Absorbent and refrigerant management 15 (5) : 343 ~ 352
[학술지(정기간행물)] - / 2002 / The Effect of Temperature on Corrosion of Absorption Refrigeration Systems Using LiBr-H2O Working Fluids 26 (1) : 125 ~ 131
[학술지(정기간행물)] - / 1980. / Corrosion Inhibition of Carbon Steel Copper and 70/30 Cupro-Nickel by Sodium Tetraborate and Benzotriazole in Concentrated Lithium Bromide Solution at Elevated Temperature kazuo tan 29 (and masahiko itoh) : 233 ~ 238
[학술지(정기간행물)] - / / Engine Coolants Testing astm (705) : 81 1988 ~ 101
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