Journal of Pressure Vessel Technology: Recent submissions
Now showing items 1241-1260 of 4506
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Shear Layer Driven Acoustic Modes in a Cylindrical Cavity
(The American Society of Mechanical Engineers (ASME), 2014)This paper describes the interior acoustic pressure of a cylindrical cavity driven by a shear layer. Existing cavity flow literature is generally focused on rectangular cavities, where the resonance is either longitudinal ... -
The Effect of Punching Plates to Suppress the Sloshing in a Gas Liquid Separator
(The American Society of Mechanical Engineers (ASME), 2014)Natural gas is relatively clean and its demand is increasing these days. In most of the case, gas fields are located at the bottom of the sea. Therefore, floating production, storage and offloading (FPSO) system is now ... -
Onset of Flow Induced Tonal Noise in Corrugated Pipe Segments
(The American Society of Mechanical Engineers (ASME), 2014)Corrugated pipes combine smallscale rigidity and largescale flexibility, which make them very useful in industrial applications. The flow through such a pipe can induce strong undesirable tonal noise (whistling) and even ... -
Development of Boiling Water Reactor Steam Dryer Loading Evaluation Methods Through Scale Model Tests Under Actual Steam Conditions
(The American Society of Mechanical Engineers (ASME), 2014)Previous plant measurements and scale model tests have demonstrated that intense fluctuating pressure acted on the steam dryer in boiling water reactors (BWRs) at higher velocity flows than in normal operation. The cause ... -
Forces Exerted on a Cylinder in Near Axial Flow
(The American Society of Mechanical Engineers (ASME), 2014)This study investigates the flow around a cylinder in a nearaxial flow at a Reynolds number of 27,000. Both computational fluid dynamics (CFD) calculations and experiments are performed. Timemean values of lift force ... -
Identification of Random Excitation Fields From Vibratory Responses With Application to Multisupported Tubes Excited by Flow Turbulence
(The American Society of Mechanical Engineers (ASME), 2014)In this paper, we address the identification of the spectral and spatial features of random flow excitations for multisupported tubular components such as steam generator tubes and nuclear fuel rods. In the proposed work, ... -
Low Mass Damping Vortex Induced Vibrations of a Single Cylinder at Moderate Reynolds Number
(The American Society of Mechanical Engineers (ASME), 2014)The feasibility and accuracy of large eddy simulation is investigated for the case of threedimensional unsteady flows past an elastically mounted cylinder at moderate Reynolds number. Although these flow problems are ... -
A Simple Empirical Model for Tube–Support Normal Impact Interaction
(The American Society of Mechanical Engineers (ASME), 2014)Flowinduced vibration in a steam generator may cause tube–support interaction. This long term interaction is a challenging problem as it may lead to tube frettingwear and possibly tube failure. An estimation of the normal ... -
Study on In Flow Fluidelastic Instability of Triangular Tube Arrays Subjected to Air Cross Flow
(The American Society of Mechanical Engineers (ASME), 2014)The inflow instability of cylinder arrays corresponds to the inplane instability of Ubend tubes in steam generators. This rarely occurring phenomenon has recently been observed in a nuclear power plant in the U.S. For this ... -
Editorial in Tribute to John Aidan Fitzpatrick
(The American Society of Mechanical Engineers (ASME), 2014)John Fitzpatrick was Professor of Mechanical Engineering at Trinity College Dublin, from 1994 to his passing away in Sept. 2012. The utter sadness of his death at the age of 63 was deeply felt by his family, friends, ... -
Evaluation of the Integrity of Steam Generator Tubes Subjected to Flow Induced Vibrations
(The American Society of Mechanical Engineers (ASME), 2014)Flowinduced vibrations (FIV) continue to affect the operations of nuclear power plant components such as heat exchanger tube bundles. The negative effect of FIV is in the form of tube fatigue, cracking, and fretting wear ... -
Analysis of Stress–Strain State in a Steel Pipe Strengthened With a Composite Wrap
(The American Society of Mechanical Engineers (ASME), 2014)In this paper, strengthening of a steel pipe with a composite wrap is analyzed. An analytical model taking into account joint reaction of the pipe and the wrap, twodimensional stress state and plastic strains in the pipe ... -
Strain Rate Calculation Approach in Environmental Fatigue Evaluations
(The American Society of Mechanical Engineers (ASME), 2014)Fatigue usage factor evaluations including the effects of reactor water environment have been performed in numerous nuclear plant license renewal efforts. A large number of these evaluations have used the environmental ... -
Cyclic Viscoplasticity Testing and Modeling of a Service Aged P91 Steel
(The American Society of Mechanical Engineers (ASME), 2014)A serviceaged P91 steel was used to perform an experimental program of cyclic mechanical testing in the temperature range of 400 آ°C–600 آ°C, under isothermal conditions, using both sawtooth and dwell (inclusion of ... -
Analytical Investigation of Elastic Thin Walled Cylinder and Truncated Cone Shell Intersection Under Internal Pressure
(The American Society of Mechanical Engineers (ASME), 2014)An elastic solution of cylindertruncated cone shell intersection under internal pressure is presented. The edge solution theory that has been used in this study takes bending moments and shearing forces into account in the ... -
An Efficient Methodology for the Reliability Analysis of Corroding Pipelines
(The American Society of Mechanical Engineers (ASME), 2014)This paper describes an efficient methodology that utilizes the first order reliability method (FORM) and system reliability approaches to evaluate the timedependent failure probabilities of a pressurized pipeline at a ... -
Influence of a Variable in Time Heat Transfer Coefficient on Stresses in Model of Power Plant Components
(The American Society of Mechanical Engineers (ASME), 2014)The paper discusses the issue of the modelling of strains and stresses resulting from heating and cooling processes of components in power plants. The main purpose of the work is to determine the mechanical behavior of ... -
A Phenomenological Model for Fatigue Crack Growth Rate of X70 Pipeline Steel in H2S Corrosive Environment
(The American Society of Mechanical Engineers (ASME), 2014)Long distance pipeline transmission is considered to be the most economic and safest method to transport natural gas in recent days. The pipeline safety problem is a focus of concern in the academic and industrial circles. ... -
Three Dimensional Nonlinear Seismic Ground Response Analysis of Local Site Effects for Estimating Seismic Behavior of Buried Pipelines
(The American Society of Mechanical Engineers (ASME), 2014)Damage to buried pipelines caused by local amplification of seismic ground motion in highly nonuniform grounds is not yet fully understood. The development of methods to evaluate the amplification of ground motion in complex ... -
Technical Basis for Evaluation of US DOT Seamless Pressure Vessels With Defects on Threaded Neck Used for Structural Support
(The American Society of Mechanical Engineers (ASME), 2014)Seamless pressure vessels (tubes) are designed per Department of Transportation (DOT) Specification 3AAX or 3 T. These tubes are used in overtheroad transport of high pressure gases. In tube trailer, these tubes are ...