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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2017.1
- 수록면
- 1,669 - 1,679 (11page)
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Background: Steam generator (SG) is one of the significant components in the nuclear steam supply system. A variety of SGs have been designed and used in nuclear reactor systems. Every SG has advantages and disadvantages. A brief account of some of the existing SG designs is presented in this study.
A high surface to volume ratio of a SG is required in small modular reactors to occupy the least space. In this paper, performance improvement for SGs of integral small modular reactor is proposed.
Aims/Methods: For this purpose, cross-grooved microfins have been incorporated on the inner surface of the helical tube to enhance heat transfer. The primary objective of this work is to investigate thermal -hydraulic behavior of the proposed improvements through modeling in RELAP5-3D.
Results and Conclusions: The results are compared with helical-coiled SGs being used in IRIS (International Reactor Innovative and Secure). The results show that the tube length reduces up to 11.56% keeping thermal and hydraulic conditions fixed. In the case of fixed size, the steam outlet temperature increases from 590.1 K to 597.0 K and the capability of power transfer from primary to secondary also increases. However, these advantages are associated with some extra pressure drop, which has to be compensated.
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참고문헌 (29)
참고문헌 신청
/ / Pressurized water reactor (PWR) systems, in Reactor Concepts Manual / USNRC Technical Training Center
/ 2005 / Natural Circulation in Water Cooled Nuclear Power Plants Phenomena, Models, and Methodology for System Reliability Assessments
/ 2005 / Small and Medium Sized Reactors: Design Features, Safety Approaches and R&D Trends
/ 2007 / Status of Small Reactor Designs without On-site Refueling
A. Kawahara / 2002 / Investigation of two-phase flow pattern, void fraction and pressure drop in a microchannel / Int. J. Multiphase Flow 28 : 1411 ~ 1435
/ 2005 / Natural Circulation in Water Cooled Nuclear Power Plants Phenomena, Models, and Methodology for System Reliability Assessments
/ 2005 / Small and Medium Sized Reactors: Design Features, Safety Approaches and R&D Trends
/ 2007 / Status of Small Reactor Designs without On-site Refueling
A. Kawahara / 2002 / Investigation of two-phase flow pattern, void fraction and pressure drop in a microchannel / Int. J. Multiphase Flow 28 : 1411 ~ 1435
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