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Science and Technology of Nuclear Installations
Volume 2014, Article ID 857507, 12 pages
Research Article

Study on Thermal-Hydraulic Behavior of an Integral Type Reactor under Heaving Condition

1Key Laboratory of Advanced Reactor Engineering and Safety, Ministry of Education of China, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
2Shool of Aerospace, Mechanical & Manufacturing Engineering, RMIT University, Plenty Road, Bundoora, VIC 3083, Australia

Received 5 November 2013; Revised 20 February 2014; Accepted 20 February 2014; Published 8 April 2014

Academic Editor: Luciano Burgazzi

Copyright © 2014 Beibei Feng et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


A self-developed program was used to study the thermal-hydraulic behavior of an integral type reactor under heaving condition. Comparison of calculated results with the data of experiments performed on a natural circulation loop designed with reference to an integral type reactor of Tsinghua University in inclination, heaving, and rolling motions was carried out. Characteristics of natural circulation in heaving motion and effect of motion parameters on natural circulation were investigated. Results indicated that: (1) long-period heaving motion would lead to more significant influence than inclination and rolling motion; (2) it was an alternating force field which consisted of gravity and an additional force that decided the flow temperature and density difference of natural circulation; (3) effect of strength and cycle of heaving motion on flow fluctuation of natural circulation and condensate depression of heating section outlet was performed.