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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
- 발행연도
- 2020.12
- 수록면
- 111 - 119 (9page)
- DOI
- 10.6112/kscfe.2020.25.4.111
이용수
이 논문의 연구 히스토리 (3)
2020
EFFECT OF NON-EQUILIBRIUM CONDENSATION OF WET STEAM IN THE MODIFIED SONIC NOZZLE
Balasub
,
amanian Dhandapani
,
Jang-Chang Lee
한국전산유체공학회지
2020.12
학술저널
THROAT DIAMETER EFFECTS OF THE WET STEAM FLOW IN THE MODIFIED ASME SONIC NOZZLE
Balasub
,
amanian Dhandapani
,
Jang-Chang Lee
한국전산유체공학회 학술대회논문집
2020.10
학술대회자료
NON-EQUILIBRIUM CONDENSATION EFFECTS OF STEAM IN THE MODIFIED SONIC NOZZLE
Balasub
,
amanian Dhandapani
,
Jang-Chang Lee
한국전산유체공학회 학술대회논문집
2020.10
학술대회자료
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초록· 키워드
오류제보하기
The non-equilibrium condensation effects of steam in the modified sonic nozzle are investigated. The modified sonic nozzle in this paper is based on the sonic nozzle of ASME where the flow velocity reaches Mach number one at the throat and where the pressure ratio of inlet/outlet(P1/P3) is operated with greater than two to achieve sonic state. As the superheated dry steam accelerates through the nozzle, the condensation of steam occurs and then the steam becomes the wet steam which is two phases mixture with saturated vapor and liquid droplets. The numerical modeling of the non-equilibrium condensation in the modified sonic nozzle is obtained by solving two transport equations based on the classical nucleation theory with the droplet growth law of Hill. The numerical results show that the Mach number reaches 1.2 immediately after throat, the droplet nucleation rate increases rapidly with increasing subcooling level(ΔT), and the liquid mass fraction increases gradually downstream of nozzle. Also the condensation effects in the modified sonic nozzle is compared internally with its different thermal choking ratio’s and with dry steam cases for better realization of the modified sonic nozzle.
목차
1. Introduction
2. Methodology
3. Results and Discussion
4. Conclusion
References
참고문헌 (24)
참고문헌 신청
Trigas DM, DATASHEET Sonic Nozzles.
2014, Ding, H., Wang, C. and Chen, C., Non-equilibrium condensation of water vapor in sonic nozzle, Applied Thermal Engineering, 71, pp.324-334.
2015, Ding, H., Wang, C. and Chen, C., Experimental and numerical studies on self-excited periodic oscillation of vapor condensation in a sonic nozzle, Experimental Thermal and Fluid Science, 68, 288-299, pp.173-182.
2014, Ding, H., Wang, C. and Chen, C., Non-equilibrium condensation process of water vapor in moist air expansion through a sonic nozzle, Flow Measurement and Instrumentation, 40, 238-246, pp.1357-1362.
2018, Li, C., Cao, P., Zhang, H. and Cui, L., Throat diameter influence on the flow characteristics of a critical Venturi sonic nozzle, Flow Measurement and Instrumentation, 60, pp.105-109.
2014, Ding, H., Wang, C. and Chen, C., Non-equilibrium condensation of water vapor in sonic nozzle, Applied Thermal Engineering, 71, pp.324-334.
2015, Ding, H., Wang, C. and Chen, C., Experimental and numerical studies on self-excited periodic oscillation of vapor condensation in a sonic nozzle, Experimental Thermal and Fluid Science, 68, 288-299, pp.173-182.
2014, Ding, H., Wang, C. and Chen, C., Non-equilibrium condensation process of water vapor in moist air expansion through a sonic nozzle, Flow Measurement and Instrumentation, 40, 238-246, pp.1357-1362.
2018, Li, C., Cao, P., Zhang, H. and Cui, L., Throat diameter influence on the flow characteristics of a critical Venturi sonic nozzle, Flow Measurement and Instrumentation, 60, pp.105-109.
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