scholarly journals WAVE PRESSURES ON LARGE CIRCULAR CYLINDRICAL STRUCTURE

1976 ◽  
Vol 1 (15) ◽  
pp. 133
Author(s):  
Hiroshi Nakamura
Keyword(s):  
Power Plant ◽  
Small Amplitude ◽  
Nuclear Power ◽  
Cooling Water ◽  
Wave Theory ◽  
Field Observations ◽  
Amplitude Wave ◽  
Cylindrical Structures ◽  
Cylindrical Structure ◽  
Intake Structure

The field observations on wave pressures on large circular cylindrical structures are performed at the cooling water intake structure for Hamaoka nuclear power plant, which is located at the coast of Pacific Ocean. In this report, the results of the field observation on wave pressures are compared with the results of the calculation by small amplitude wave theory considering wave diffraction around the cylinder.

scholarly journals Research on Security Defence System of Cooling Water Source in Nuclear Power Plant

2020 ◽  
Vol 1549 ◽  
pp. 052003
Author(s):  
Qiaojun Wu ◽  
Guangchu He ◽  
Hongyong Wen ◽  
Xinpeng Lin ◽  
Shengliang He ◽  
...  
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
Cooling Water ◽  
Water Source ◽  
Defence System

scholarly journals Study on Cooling Water Source Seawater Filtration System of Nuclear Power Plant

2020 ◽  
Vol 514 ◽  
pp. 042014
Author(s):  
Qiaojun Wu ◽  
Guangchu He ◽  
Hongyong Wen ◽  
Xinpeng Lin ◽  
Shengliang He ◽  
...  
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
Cooling Water ◽  
Water Source ◽  
Filtration System

Life Prediction Model for Nuclear Power Plant Intake Structure Exposed to Chloride Environment Based on Similarity Principle

2020 ◽  
Author(s):  
Sen Chen ◽  
Zhen Wang ◽  
Jiangtao Zhang ◽  
Dahua Cai ◽  
Jiyun Zhou
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
Salt Spray ◽  
Chloride Ion ◽  
Ion Concentration ◽  
Test Results ◽  
Ion Diffusion ◽  
Similarity Principle ◽  
Intake Structure

Abstract Three environmental simulation experiments for accelerating the chloride ingress were designed based on the similarity principle and the actual Nuclear Power Plant (NPP) intake structure service environment parameters including alternate drying-wetting condition, immersion condition and salt spray condition. Different experiment conditions were designed for each three-simulation experiment condition based on the similarity principle. The temperature, chloride ion concentration and dry-wet cycle time ratio were selected parameters for alternation wetting-drying experiments. The temperature and chloride ion concentration were selected parameters for the salt spray experiment and immersion experiment. The distribution of chloride ion concentration along the depth of the concrete samples were measured every 30 days. The testing results showed that chloride ion diffusion depth is maximum under the dry-wet cycle test, chloride ion diffusion depth is minimum under salt spray test. The curves of the chloride ion concentration along depth increased firstly and then decreased, which is consistent with the two-dimension diffusion law. Finally, a life prediction model that can be used to predict the concrete structure of the existing coastal nuclear power plant was developed based on the test results and field test results.

Reactions of cyprinids to infrasound in a lake and at the cooling water inlet of a nuclear power plant

2006 ◽  
Vol 69 (3) ◽  
pp. 735-748 ◽  
Author(s):  
D. Sonny ◽  
F. R. Knudsen ◽  
P. S. Enger ◽  
T. Kvernstuen ◽  
O. Sand
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
Cooling Water

scholarly journals THE WAVE PRESSING PLATE FOR PROTECTING COOLING WATERWAYS OF COASTAL POWER PLANTS

1984 ◽  
Vol 1 (19) ◽  
pp. 194 ◽  
Author(s):  
S.C. Chow ◽  
Frederick L.W. Tang ◽  
H.H. Hwung
Keyword(s):  
Power Plant ◽  
Water Surface ◽  
Nuclear Power ◽  
Power Plants ◽  
Wave Motion ◽  
Cooling Water ◽  
Northern Coast ◽  
Horizontal Plate ◽  
Hydraulics Laboratory ◽  
Power Plant Cooling

A horizontal plate laid on water surface to reduce the wave motion is proved to be effective theoretically and verified by model tests done at Tainan Hydraulics Laboratory. This principle has been put into practice on the northern coast of Taiwan for protecting a nuclear power plant cooling water intake against intruding waves. The design and construction of wave prevention works of such type are described succinctly in the paper. Also the effect of wave diminishing has been affirmed by measuring the respective waves heights outside and inside of the wave pressing plate.

scholarly journals NUMERICAL MODEL OF BREAKING WAVE AROUND A RIVER MOUTH

1986 ◽  
Vol 1 (20) ◽  
pp. 97
Author(s):  
Jong-Sup Lee ◽  
Toru Sawaragi ◽  
Ichiro Deguchi
Keyword(s):  
Numerical Model ◽  
Wave Breaking ◽  
Small Amplitude ◽  
River Mouth ◽  
Wave Theory ◽  
Experimental Result ◽  
Breaking Wave ◽  
Linear Wave ◽  
Amplitude Wave ◽  
Current Interaction

Equations for wave kinematics and wave dynamics based on small amplitude wave theory have been used in the prediction of wave deformations and wave-indused currents. However, the applicability of the linear wave theory is questionable in a river mouth where forced wave breaking and strong wave-current interaction take place. A numerical model based on the non-linear dispersive wave theory has been developed, the results by this model was compared with the values of the experiments and the linear theory. Wave transformations including shoaling, wave-current interaction and wave breaking by the model showed a good agreement with the experimental result. In the prediction of wave-induced currents, the excess momentum flux (Pxx) computed by the model has more reasonable value than the radiation stress ( Sxx) calculated by the small amplitude wave theory.

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