Experimental and numerical study of dynamic response of elevated water tank of AP1000 PCCWST considering FSI effect

Lu, Daogang; Liu, Yu; Zeng, Xiaojia

doi:10.1016/j.anucene.2015.03.019

Cited by 27 publications

(14 citation statements)

References 11 publications

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“…It was aimed to make the laser displacement sensor work normally by detecting object with surface that exhibited a diffuse reflection. From the research of Lu et al [14], the influence of water level on natural frequency of sloshing water was quite small. Hence, the subtle variations of natural frequency with different filling depths can be ignored.…”

Section: Natural Frequency Of Sloshing In First Modementioning

confidence: 99%

A Calculation Method for the Sloshing Impact Pressure Imposed on the Roof of a Passive Water Storage Tank of AP1000

Zeng

Dang

et al. 2016

Science and Technology of Nuclear Installations

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There is a large water storage tank installed at the top of containment of AP1000, which can supply the passive cooling. In the extreme condition, sloshing of the free surface in the tank may impact on the roof under long-period earthquake. For the safety assessment of structure, it is necessary to calculate the impact pressure caused by water sloshing. Since the behavior of sloshing impacted on the roof is involved into a strong nonlinear phenomenon, it is a little difficult to calculate such pressure by theoretical or numerical method currently. But it is applicable to calculate the height of sloshing in a tank without roof. In the present paper, a simplified method was proposed to calculate the impact pressure using the sloshing wave height, in which we first marked the position of the height of roof, then produced sloshing in the tank without roof and recorded the maximum wave height, and finally regarded approximately the difference between maximum wave height and roof height as the impact pressure head. We also designed an experiment to verify this method. The experimental result showed that this method overpredicted the impact pressure with a certain error of no more than 35%. By the experiment, we conclude that this method is conservative and applicable for the engineering design.

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Section: Natural Frequency Of Sloshing In First Modementioning

confidence: 99%

A Calculation Method for the Sloshing Impact Pressure Imposed on the Roof of a Passive Water Storage Tank of AP1000

Zeng

Dang

et al. 2016

Science and Technology of Nuclear Installations

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“…The order of reaction of sulfuric acid with mild steel is a 4 th -order reaction as shown in (17), (18), (19), (20), and (21) at the range of temperature (30-50 ∘ C). The rate of reaction constant increases with an increase in temperature because the kinetic energy of molecules increases with increase in temperature [24,25] as shown in Table 4 and Figure 3.…”

Section: International Journal Of Corrosionmentioning

confidence: 99%

“…Runge-Kutta, Euler-Maruyama, and Milstein methods were utilized to investigate the relationship between the time and pit corrosion depth in nuclear power plant piping systems [16]. The model is suggested to predict the precipitation allocation of corrosion output by using five-order Runge-Kutta format [17]. The Runge-Kutta method was used to solve the two-phase homogeneous model numerically and the major attitude of activated corrosion outputs [18].…”

Section: Introductionmentioning

confidence: 99%

Experimental and Runge–Kutta Method Simulation to Investigate Corrosion Kinetics of Mild Steel in Sulfuric Acid Solutions

Alwaan

2018

International Journal of Corrosion

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The mild steel is extensively used in different industrial applications and the biggest problem in the application of mild steel is corrosion. In this work, the reaction kinetics of mild steel with sulfuric acid at different concentrations and at different temperatures were studied in combination with the experimental data and theoretical approach using the Runge–Kutta method. The results revealed that the rate of reaction constant for temperatures in the range of 30–50°C was changed from 2618 to 2793 L3/mol3.h, respectively. The order of reaction of mild steel was 4th order in all temperature ranges. The enthalpy, entropy, and Gibbs free energy of mild steel reaction at a temperature of 298 K were estimated. The activation energy (E/R) of the reaction was 4.829 K. It was concluded that the sulfuric acid reaction with mild steel occurred easily and the inhibitors should be used in these systems.

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“…Colours: Colours are used for irregular painting of tanks [13,22]. Painting of buildings is usually done by camouflage specialists.…”

Section: Types Of Synthetic Materials Of Camouflagementioning

confidence: 99%

“…The estimation of hydrodynamic forces in fuel tanks, dams, submerged structures and liquid storage has been considered by engineers and designers for a long time [15,22]. The first steps were taken by Westergaard, Carmen and Jacobson.…”

Section: Effective Indicators Caused By Dynamic Load Effects In the Cmentioning

confidence: 99%

Design and Implementation of Reservoirs with Passive Defense Approach

Ostad‐Ali‐Askari¹,

Eslamian²,

Dehghan³

et al. 2018

NSTOA

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In this article, the figure of passive systems in modern plans has been considered. Actuality, some of these Reservoirs are offered to be made inside a crowd area without having an exclusion area. However, it may be arduous or inconceivable to incorporate passive systems largely in large size reservoirs, but could be well fit into tiny and mediocre sized reservoirs. The security of progressive reservoirs is pursuant to the latest thinking, regulatory alters, security aims, and peril evaluation propositions. These are considered in this article. The available article contains all sorts, meanings, and opinions of reservoirs offered to date, so as to simplify analogy and resolution the many of plans. This deep-rooted narrow understanding of this defense system has resulted in excessive attention on the reservoirs. Organization with passive defense method prepares the feasibility to keep down the diminution and deletion of many obstacles by considering the concepts of passive defense to exclude the harms when happening menances while amending situations. This article was managed applying overview procedure to detect a solution for retrofitting of reservoir structures against earthquake and explosive burdens. In the following, we study the methods of passive defense of reservoirs in terms of Site Selection, camouflage, deception and dispersion.

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Experimental and numerical study of dynamic response of elevated water tank of AP1000 PCCWST considering FSI effect

Cited by 27 publications

References 11 publications

A Calculation Method for the Sloshing Impact Pressure Imposed on the Roof of a Passive Water Storage Tank of AP1000

A Calculation Method for the Sloshing Impact Pressure Imposed on the Roof of a Passive Water Storage Tank of AP1000

Experimental and Runge–Kutta Method Simulation to Investigate Corrosion Kinetics of Mild Steel in Sulfuric Acid Solutions

Design and Implementation of Reservoirs with Passive Defense Approach

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