Last edited by Nikojind
Wednesday, May 6, 2020 | History

2 edition of Experimental Studies on Flow Induced Vibration to Support Steam Generator Design found in the catalog.

Experimental Studies on Flow Induced Vibration to Support Steam Generator Design

Atomic Energy of Canada Limited.

Experimental Studies on Flow Induced Vibration to Support Steam Generator Design

Part 1: Vibration of A Heated Cylinder in Two-Phase Axial Flow.

by Atomic Energy of Canada Limited.

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  • 1 Currently reading

Published by s.n in S.l .
Written in English


Edition Notes

1

SeriesAtomic Energy of Canada Limited. AECL -- 4514
ContributionsPettigrew, M.J., Gorman, D.J.
ID Numbers
Open LibraryOL21971234M

  The phenomenon has been studied since the s and the database of experimental studies on flow-induced vibration is constantly updated with new findings and improved design criteria for heat exchangers. In the nuclear industry, steam generators are often affected by Author: Uvan Catton, Vijay K. Dhir, Deepanjan Mitra, Omar Alquaddoomi, Pierangelo Adinolfi. Fluid Induced Structural Vibrations in Steam Generators and Heat Exchangers Ivan Catton, Pierangelo Adinolfi, Omar Alquaddoomi failure of heat exchangers due to apparent flow-induced vibration have been reported through database of experimental studies on flow-induced vibration is constantly updated with new findings and improved design Author: Ivan Catton, Pierangelo Adinolfi, Omar Alquaddoomi.

Pettigrew, M. J., and Gorman, D. J., , “Experimental Studies on Flow-Induced Vibration to Support Steam Generator Design, Part III: Vibration of Small Tube Bundles in Liquid and Two-Phase Cross Flow,” AECL Report, AECLCited by: Numerous examples can be drawn from engineering applications for vibrating (dynamic) systems. An automobile subjected to road irregularities and engine excitations, a machine tool subjected to cutting forces, a steam generator of a nuclear power plant that undergoes flow-induced vibration, a high-rise building subjected to seismic motions at its foundation, an incinerator tower subjected to Cited by: 2.

In many plants, vibration and noise problems occur due to fluid flow, which can greatly disrupt smooth plant operations. These flow-related phenomena are called Flow-Induced book explains how and why such vibrations happen and provides hints and tips on how to avoid them in future plant design. The world-leading author team doesn’t assume prior knowledge of mathematical. Design and Analysis of a Dynamic Structure for the Study of Multiphase Flow Induced Vibration hydrodynamic mass phenomena for countergravity two-phase cross-flow. Two types of experiment were conducted; in the first one the test section was composed by an all cantilevered tube bundle, with each tube natural frequency of roughly 30File Size: 1MB.


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Experimental Studies on Flow Induced Vibration to Support Steam Generator Design by Atomic Energy of Canada Limited. Download PDF EPUB FB2

The major flow-induced vibration mechanisms that can cause vibration of steam generator tubes are fluidelastic excitation, turbulence, and vortex shedding.

Fluid-elastic excitation, rather than vortex shedding, is believed to have been the cause of large-amplitude vibration and rapid wear of heat exchanger tubes in the by: A thorough flow-induced vibration analysis of nuclear components such as heat exchangers and steam generators is essential at the design stage to ensure good performance and reliability.

Flow-induced vibration is an important consideration when dealing with the design and operation of nuclear steam generators. Over the years the technology and the tools have advanced to the extent that problems arising from FIV can be predicted and mitigated at the design stage : M.

Hassan. Flow-Induced Vibration Characteristics of Steam Generator U-Tubes With Defect Conference Paper in American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP. The supercritical water-cooled reactor (SCWR) is one of the most promising Generation IV reactors.

In order to make the fuel qualification test for SCWR, a research plan is proposed to test a small scale fuel assembly in a supercritical water loop.

To ensure the structure safety of fuel assembly in the loop, a flow-induced vibration experiment was carried out to investigate the vibration Cited by: 3. Grover and Weaver () developed an experimental wind tunnel facility to study cross flow induced vibration of tube banks and they first addressed the vortex shedding vibration.

Later inan experimental study was conducted on a full scale U-bend multi-span tubes to test the efficiency of flat bars as AVBs (Weaver and Schneider, ).Cited by: 1. Flow-induced vibration of steam generator tubes results in fretting-wear damage due to impacting and rubbing of the tubes against their supports.

This damage can be predicted by computing tube response to flow-induced excitation forces using analytical techniques, and then relating this response to resultant wear damage using experimentally derived wear by: Therefore, in this study, a simplified model of the helically coiled tube steam generator is designed for use in the thermal-hydraulic analysis as shown in Fig.

tube side and shell side flow fields are simulated using the general purpose computational fluid dynamics code CFX employing the finite volume element internal and external flows are simulated using the standard Cited by: Effects of support structure changes on flow-induced vibration characteristics of steam generator tubes Article (PDF Available) in Nuclear Engineering and Technology 42(1) February with.

A Study on Flow Induced Vibration Excitation in Solid Square Structures. Figure 1: Experimental Set-up: Schematic Diagram of a Wind Tunnel To visualize the fluid flow around the test cylinder.

This paper describes a numerical study of flow-induced vibration in a helical coil steam generator experiment conducted at Argonne National Laboratory in the s.

In the experiment, a half-scale sector model of a steam generator helical coil tube bank was subjected to still and flowing air and water, and the vibrational characteristics were by: In this paper an experimental investigation is performed on a range of transverse gap ratios (≤T/D≤) between the cylinders arranged in side by side configuration.

The pattern of the test cylinder motion, spectral diagram and amplitude are used to analyze the vibration excitation at different conditions such as free stream velocity, natural frequency of the test by:   The KSNP Steam Generators (Youngkwang Unit 3 and 4, Ulchin Unit 3 and 4) have a problem of U-tube fretting wear due to Flow Induced Vibration (FIV).

In particular, the wear is localized and concentrated in a small area of upper part of U-bend in the Central Cavity region. The region has some conditions susceptible to the FIV, which are high flow velocity, high void fraction, and long Cited by: 2. In nuclear power plant, fretting wear caused by flow induced vibration (FIV) accompanied with impact force can make serious problems between U-tubes and egg-crates which are located in steam order to guarantee the reliability of the steam generator, design based on consideration of the damage due to the fretting wear of the U-tube is by: 1.

Characterization of Flow-Induced Vibration of Multispan U-tubes strate that the tube support design for future CANDU steam generators meets the strin- Experimental studies have been. The phenomenon has been studied since the s and the database of experimental studies on flow-induced vibration is constantly updated with new findings and improved design criteria for heat exchangers.

In the nuclear industry, steam generators are often affected by this problem. Flow-induced vibration of steam generator tubes results in fretting-wear damage due to impacting and rubbing of the tubes against their supports. This damage can be predicted by computing tube response to flow-induced excitation forces using analytical techniques, and then relating this response to resultant wear damage using experimentally derived wear coefficients.

Many nuclear steam generators have accumulated more than 10 effective-full-power-years of operation. Eddy-current inspections revealed that a number of these steam generator tubes, notably those located in high local cross-flow regions, have indications of wear at some support plate elevations after 5 to 10 yr of effective-full-power by: Flow-Induced Vibration (FIV) experiments were carried out in a water test loop on a degree sector model to validate the design and also to qualify the component for plant operation.

Read more. Flow-induced vibration of steam generator tubes results in fretting-wear damage due to impacting and rubbing of the tubes against their supports. This damage can be predicted by computing tube response to flow-induced excitation forces using analytical techniques, and then relating this response to.

Gorman, D. J., “Experimental Study of the Flow Induced Vibration of Multi-Span Heat Exchanger Tube Bundles in Liquid Cross Flow,” Paper B6/6, Trans. 6th International Conference on Structural Mechanisms in Reactor Technology, Paris ().

Google ScholarCited by: 1.Criteria are formulated for the development of acoustic vibration in transverse acoustic modes in steam generator tube banks, based on flow and acoustic parameters.

Theoretical predictions are validated against available in-service data for nonvibrating and vibrating tube banks and published laboratory experimental by: experimental studies on flow-induced vibration is constantly updated with new findings and improved design criteria for heat exchangers.

In the nuclear industry, steam generators are often affected by this problem. However, flow-induced vibration is not limited to nuclear power plants, but to any type of heat exchanger used in many industrial.