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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국마린엔지니어링학회 Journal of Advanced Marine Engineering and Technology (JAMET) 한국마린엔지니어링학회지 제38권 제10호
- 발행연도
- 2014.12
- 수록면
- 1,244 - 1,250 (7page)
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초록· 키워드
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The temperature of the main engine cabin of commercial vessel is very high. The material SS-316L undergoes creep damage at temperatures exceeding 450°C. It is essential to maintain the highly stressed engine cabin below the creep regime. Hence, seawater is employed in this kind of maritime vehicles as cooling liquid. It obtains the thermal energy at the cooling pipe line after passing through main engine cooling system. To harness the energy in the seawater, a turbine can be installed to absorb the energy in the seawater before being released into the sea. In this study, a cooling pipe line is selected to apply the tubular type hydro turbine for transferring the energy. Numerical analysis for investigating the performance and the internal flow characteristics of the tubular turbine is conducted. The results show that the maximum efficiency of 85.8% is achieved although the efficiency drops rapidly at partial flow rate condition. The efficiency descends slowly at the condition of excess flow rate. There is a relatively wide operating range of flow rate of this turbine to keep high efficiency at the excess flow rate condition. For the internal flow of the turbine, there is uniform streamline on the suction and pressure sides of the blade at the design point. However, the secondary flow appears at the suction and pressure sidesat the excess flow rate. In addition, it appears only at pressure side at the partial flow rate condition.
목차
Abstract
1. Introduction
2. Turbine Model and Numerical Methods
3. Results and Discussion
4. Conclusions
References
참고문헌 (11)
참고문헌 신청
1. [학술지(정기간행물)] - V. Vivek / 2013 / A CFD based approach for thermal hydraulic design of main vessel cooling system of pool type fast reactors / Annals of Nuclear Energy 57 : 269 ~ 279
2. [인터넷자원] - / / Bright Hub Engineering
3. [학술지(정기간행물)] - Sang-Hyun Nam / 2008 / Internal Flow Analysis of a Tubular-type Small Hydroturbine by Runner Vane Angle / 한국마린엔지니어링학회지 32 (7) : 1044 ~ 1050
4. [학술대회논문] - L. Motycak / 2010 / Analysis of the kaplan turbine draft tube effect / Proceedings of 25th IAHR Symposium on Hydraulic Machinery and Systems 12
5. [학술지(정기간행물)] - W. Jingchun / 2007 / CFD-based design optimization for hydro turbines / Journal of Fluids Engineering 129 (2) : 159 ~ 168
2. [인터넷자원] - / / Bright Hub Engineering
3. [학술지(정기간행물)] - Sang-Hyun Nam / 2008 / Internal Flow Analysis of a Tubular-type Small Hydroturbine by Runner Vane Angle / 한국마린엔지니어링학회지 32 (7) : 1044 ~ 1050
4. [학술대회논문] - L. Motycak / 2010 / Analysis of the kaplan turbine draft tube effect / Proceedings of 25th IAHR Symposium on Hydraulic Machinery and Systems 12
5. [학술지(정기간행물)] - W. Jingchun / 2007 / CFD-based design optimization for hydro turbines / Journal of Fluids Engineering 129 (2) : 159 ~ 168
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