... plate Above experimental tests reveal good understanding of static and fracture mechanics behavior of the G 91 steel. Numerical simulation is in progress. 15 03 2010 11 02 2011 25 01 2012 25 01 2012 boilers finite element analysis nozzles reactors (electric...

... velocities ranging from less than 1 m/s to as high as 6 m/s. CANDU steam generators flow-induced vibration multispan U-tubes two-phase flow bars boilers design engineering dynamic response elasticity flow instability flow measurement heat transfer mechanical testing numerical...

... following subsequent tube failures of the reheater pendent region of a boiler unit. Interaction event of significant internal scale formation causing the higher metal temperature and external scale exfoliation as a result of high-temperature corrosion is identified to cause the failure of the reheater...

.... G. , 1991 , Modern Power Station Practice, Vol. E: Chemistry and Metallurgy , Pergamon, British Electricity International , England . 2 Port , R. D. , and Herro , H. M. , 1991 , NALCO Guide to Boiler Failure Analysis , McGraw-Hill , New York . 3 Cramer , S. D...

... boilers has not hitherto been reported. The tubes of the four key components, namely, the economizer, the water-cooling wall, the superheater, and the reheater, are prone to blast due to direct fire heating. Such a blast always causes unplanned shutdown and has severe safety implications. Based...

... creep in subsection NH, Division 1 of the ASME Boiler and Pressure Vessel Code, Sec. III, other international design codes, and some currently suggested criteria modifications and their impact on permissible operating temperatures for various reactor pressure vessel materials. The goal of negligible...

...M. A. Habib; I. Al-Zaharnah; M. El-Shafei; S. A. M. Said; N. Merah; S. Al-Anizi; M. Y. Al-Awwad; M. Hajji In this paper, different rates of steam flow (swing rates) are used to demonstrate the transient changes in both the drum-boiler steam pressure and the wall temperature levels in addition...

... 2010 20 10 2010 boilers grain boundaries oxidation sputtered coatings Fireside oxidation and corrosion of boiler tubes continues to be the number one issue resulting in forced outages and lowering the boiler availability for conventional coal-fired fossil power plants...

... of the weld slice 07 08 2009 09 03 2010 25 08 2010 25 08 2010 anodes boilers condensers (steam plant) heat exchangers leak detection metallography nondestructive testing pipes quality control radiography rods (structures) sheet materials welds X-ray microscopy...

...Takashi Ogata; Takayuki Sakai; Masatsugu Yaguchi The clarification of creep damage mechanism and the establishment of remaining life prediction methods of longitudinal welded piping of P91 steel are important subjects to maintain a reliable operation of boilers in thermal power plants. Internal...

...Kleio Avrithi, PhD; Bilal M. Ayyub, PhD This paper presents a reliability-based low-cycle fatigue design approach for class 2 and 3 nuclear pipes. Initially, the methodology and background for the design of the pipes according to the ASME Boiler and Pressure Vessel (B&PV) Code is presented...

... 06 08 2010 06 08 2010 boilers damping elasticity flow instability heat exchangers hydraulic systems pipe flow wind tunnels Nuclear steam generator tubes subjected to cross-flow have worn through and failed due to oscillatory contacts with adjacent tubes or flat bar...

... of the acoustic particle velocity for the onset of acoustic resonance in steam generator and tubular heat exchanger tube banks. 20 10 2009 16 06 2010 30 07 2010 30 07 2010 acoustic resonance boilers heat exchangers pipe flow pipes vortices In previous studies ( 1 2...

...M. M. Hossain; W. D. Reinhardt; R. Seshadri The ASME Boiler and Pressure Vessel Code (code) provides guidelines for the classification of linear elastic stresses into primary, secondary, and peak stresses. Although these guidelines cover a wide range of pressure containing components...

...J. P. Shingledecker; R. L. Battiste; P. Carter The DOE/OCDO sponsored Ultrasupercritical Steam Boiler Consortium is conducting thermal shock tests on austenitic and nickel-based materials to assess their use in thick-section boiler components. This paper describes the tests on CCA617 (a controlled...

...Frantisek L. Eisinger; Robert E. Sullivan A severe furnace vibration was developed in a gas-fired package boiler during an initial operation. The vibration occurred at higher loads and was characterized by an acoustic standing wave residing inside the furnace in the front-to-rear direction along...

... with the classical coupled method in terms of eigenfrequencies, eigenmodes, and effective modal masses. 17 08 2007 08 02 2008 11 02 2009 boilers eigenvalues and eigenfunctions finite element analysis fission reactor safety fission reactors heat exchangers modal analysis Dynamic...

... for a defect-free tube is compared, followed by the simulation of a tube with two pits and comparison with experimental measurements. 24 10 2006 20 07 2007 10 09 2008 ageing boilers condition monitoring corrosion crack detection design of experiments failure analysis finite...

... . Lubis , A. , and Boyle , J. T. , 2004 , “ The Pressure Reduction Effect in Smooth Piping Elbows—Revisited ,” Int. J. Pressure Vessels Piping 0308-0161 , 81 , pp. 119 – 125 . ASME Boiler & Pressure Vessel Code, 1998 , Section III, Division 1, Class 1 Components. Kannappan...

... boilers failure (mechanical) finite element analysis pipes reliability stability stress corrosion cracking wear burst pressure plastic limit pressure steam generator tube wear-type defects MacDonald , P. E. , Shah , V. N. , Ward , L. W. , and Ellison , P. G...