...(441) [5] Mpesha , W. , Gassman , S. L. , and Chaudhry , M. H. , 2001 , “ Leak Detection in Pipes by Frequency Response Method ,” J. Hydraul. Eng. , 127 ( 2 ), pp. 134 – 147 . 10.1061/(ASCE)0733-9429(2001)127:2(134) [6] Mohapatra , P. K. , Chaudhry , M...

... vessel. This modified design is based on the stress status analysis and the requirement of leak detection. In order to evaluate the modified structure, stresses of original and modified urea reactor shell with interlayer gaps were calculated via Finite element software ANSYS 12.0. The calculation result...

... element analysis flanges gaskets internal stresses leak detection mechanical contact porous materials leakage rate leakage model bolted flanged connection time-correlation gasket contact stress Bolted flanged connections are commonly used in pressure vessels and piping. The failure...

... 2010 15 12 2010 24 08 2011 24 08 2011 confined flow extrapolation flow measurement flow through porous media gaskets leak detection Navier-Stokes equations porosity slip flow Designing gasketed joints and seal systems requires not only the satisfaction of safety...

.... assembling beams (structures) elasticity fasteners finite element analysis flanges gaskets leak detection maintenance engineering mechanical contact occupational safety pipes pressure vessels rings (structures) 25 02 2010 10 07 2010 16 05 2011 16 05 2011 2011...

... only. 10 09 2009 18 10 2010 16 05 2011 16 05 2011 dies (machine tools) graphite leak detection packaging rings (structures) seals (stoppers) valves While chemical leakage through devices such as valves present on piping is estimated to contribute up to 60...

.... 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 tube-to-tube...

... was successful and the point of simulated leakage was clearly observed in diagrams (encircled area in Fig. 12 ). Results of leakage test; leakage is detected as temperature change 31 01 2007 26 09 2008 09 12 2009 09 12 2009 Brillouin spectra condition monitoring leak...

.... The results obtained with the model showed good agreement with the experimental data in many situations considered. 15 01 2007 14 01 2009 06 04 2009 fracture leak detection offshore installations oil technology pipelines safety Offshore operations increase every year...

...Martín Di Blasi; Carlos Muravchik The use of statistical tools to improve the decision process within leak detection is becoming a common practice in the area of computer pipeline monitoring. Among these tools, the sequential probability ratio test is one of the most named techniques used...

... is applied. Variation of flange rotation with bending 24 02 2007 24 12 2007 09 12 2008 bending couplings failure analysis flanges gaskets leak detection reliability stress effects Although in the past, bolted flanged joints have in general performed...

... at differing temperatures. The results of the investigation are described. 23 11 2005 29 06 2006 pressure vessels boilers acoustic emission testing fibre reinforced plastics tensile strength tensile testing leak detection fiber reinforced polymers acoustic emission elevated...

... recommendations are made, consistent with the ASME∕PVRC tightness-based methodology. 14 12 2005 01 05 2006 pressure vessels flanges gaskets leak detection bending strength design engineering flange joints leakage external moments external loads The analytical model...

... Leak detection setup Figures 5a 5b , show typical plots of AE records for two of the specimens tested in this program obtained during the first time monitoring along with the corresponding historic index (HI). Determination of HI from AE records In the figures, the plots...

... design engineering nuclear reactor instrumentation sodium leak detection The sodium leak incident occurred in the Japanese prototype fast breeder reactor “Monju” in 1995. The leakage was caused by the failure of a thermometer well which was inserted into the sodium coolant flow pipe 1...

... leak detection finite element analysis Fixing Element Coupling Machine Element Stress Analysis Finite Element Method Contact Problem Pipe Flange Sealing Performance It is known that the toxic air pollution problem is widespread. In 1987 industry reports suggest that an estimated...

... in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY . Manuscript received by the PVP Division, November 15, 2000; revised manuscript received May 23, 2001. Associate Editor: Y. W. Kwon. 15 November 2000 23 May 2001 vibrational modes vibrations solids continuum mechanics leak detection flow...