ACME (Advanced Core-cooling Mechanism Experiment) is an integral thermal-hydraulic facility designed to produce data for validating the software that is intended to be used to calculate the behavior of large advanced PWRs in China. Design of ACME is working on now. ACME would simulate the important phenomenon of the reactor cooling system and passive core cooling system of PWR. When the level is lower than the hot leg nozzles, droplets would be carried out by the vapor. This phenomenon is entrainment of upper plenum. Entrainment is a important phenomena in the upper plenum both of prototype and test facility. It would influence the level and inventory of the core. We analyzed entrainment phenomena in the upper plenum through H2TS scaling analysis method [1] based on Ishii’s pool entrainment model [2] in this paper. H2TS scaling analysis method includes two parts: one is the top-down system scaling and the other is the bottom-up process scaling analysis. Ishii’s pool entrainment model define the entrainment as the ratio of the droplet to vapor mass flux and divide three regions by the diameter and velocity of the droplet, including near surface region, momentum controlled region and deposition controlled region. The key scaling criteria and scaling ratios which should be met under ACME design are given for different entrainment regions. Based on these criteria and ratios, ideal upper plenum design of ACME facility will simulate the entrainment phenomena conservatively.
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2012 20th International Conference on Nuclear Engineering and the ASME 2012 Power Conference
July 30–August 3, 2012
Anaheim, California, USA
Conference Sponsors:
- Nuclear Engineering Division
- Power Division
ISBN:
978-0-7918-4497-7
PROCEEDINGS PAPER
ACME Upper Plenum Entrainment Phenomena Scaling Analysis and Criteria Available to Purchase
Zishen Ye,
Zishen Ye
State Nuclear Power Technology R&D Centre, Beijing, China
Tsinghua University, Beijing, China
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Yuquan Li,
Yuquan Li
State Nuclear Power Technology R&D Centre, Beijing, China
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Han Wang,
Han Wang
State Nuclear Power Technology R&D Centre, Beijing, China
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Lian Chen,
Lian Chen
State Nuclear Power Technology R&D Centre, Beijing, China
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Wei Li
Wei Li
State Nuclear Power Technology R&D Centre, Beijing, China
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Zishen Ye
State Nuclear Power Technology R&D Centre, Beijing, China
Tsinghua University, Beijing, China
Yuquan Li
State Nuclear Power Technology R&D Centre, Beijing, China
Han Wang
State Nuclear Power Technology R&D Centre, Beijing, China
Lian Chen
State Nuclear Power Technology R&D Centre, Beijing, China
Wei Li
State Nuclear Power Technology R&D Centre, Beijing, China
Paper No:
ICONE20-POWER2012-54309, pp. 205-210; 6 pages
Published Online:
October 30, 2013
Citation
Ye, Z, Li, Y, Wang, H, Chen, L, & Li, W. "ACME Upper Plenum Entrainment Phenomena Scaling Analysis and Criteria." Proceedings of the 2012 20th International Conference on Nuclear Engineering and the ASME 2012 Power Conference. Volume 3: Thermal-Hydraulics; Turbines, Generators, and Auxiliaries. Anaheim, California, USA. July 30–August 3, 2012. pp. 205-210. ASME. https://doi.org/10.1115/ICONE20-POWER2012-54309
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