...Duhui Lu; Guangpei Cong; Bing Li With the number of long-distance pipelines increasing in China, risk management has become important for controlling pipeline leakage. However, all the current assessment technologies are semiquantitative and do not include inspection data. To address this problem...

..., controlling of corrosion in gas pipelines needs to use cathodic protection with cathodic potential, substance becomes a cathode, and this system decreases the rate of corrosion. Periodic inspections of pipelines are essential, through a method called pigging. A pig is a device inserted into a pipeline which...

...J. Ahmad; J. Purbolaksono; A. K. Kadir; M. M. Rahman This paper presents failure investigation on reheater pendent SA213-T22 tubes through visual inspections, steam-side scale and tube wall thickness measurements, metallurgical examinations, and creep analysis. The investigations were carried out...

... Code (the ASME Code) and repaired or altered in accordance with the National Board Inspection Code (NBIC) ( The ASME issues the ASME Boiler and Pressure Vessel Code at three-year intervals and issues Addenda annually ; The National Board Inspection Code (NBIC), 2007 edition (three volumes), ANSI/NBBPVI...

...Fujun Liu; Shuai Kong; Zhangwei Ling; Qiang Li; Yueqiang Qian; Mulin Zheng Risk-based inspection (RBI) has been applied to good effect in relation to pieces of equipment and pipelines in the petrochemical industry worldwide, but to the best of our knowledge application of RBI to power station...

... of the features of the main safety programs; maintenance, surveillance, and in-service inspection (MS&I); and a complete integration of these safety programs into the general management system of the plant. Therefore, PLIM should address safety, as well as economics, knowledge management, and decision making...

...Yinsheng Li; Kunio Hasegawa; Kunio Onizawa; Nathaniel G. Cofie When a flaw is detected in a stainless steel piping system of a nuclear power plant during in-service inspection, the limit load estimation method provided in codes such as ASME Section XI or JSME S NA-1-2008 can be applied to evaluate...

...Dejan Mitrović; Dragoljub Zivkovic Fatigue is one of the most important aging effects of power plant components. Information about fatigue helps in assessing structural degradation of the component and so assists in planning in-service inspection and maintenance. In this paper, we present...

... ( 10 ), pp. 606 – 609 . 10.1784/insi.46.10.606.45218 Giller , G. A. , and Mogil’ner , L. Yu. , 1998 , “ Ultrasonic Inspection of Welded Pipeline Joints: New Technologies and Instruments ,” Insight 1060-135X , 40 ( 6 ), pp. 404 – 407 . Baskaran , G. , Balasubramaniam...

... 2008 17 04 2009 fission reactors fracture toughness inspection standards steel In the 1960s and 1970s the surveillance programs for currently operating commercial nuclear reactors were established. The then-current state of knowledge of fracture mechanics required the testing...

...Jian-Ping Zhao The high-pressure hydrogenation cracking unit is the core equipment system in the aromatic hydrocarbon factory, which is subjected simultaneously to the action of hydrogen, high pressure, and high temperature. In this paper, quantitative analysis method of risk-based inspection ( RBI...

.... , and Eder , J. , 1990 , “ Ultrasonic Inspection of Stem generator Tubing by Chemical Guided Waves ,” Review of Progress in QNDE , D. O. Thomson and D. E. Chimenti , eds., Plenum , New York , Vol. 9 , pp. 243 – 249 . Lowe , M. J. S. , Alleyne , D. N. , and Cawley , P...

...Tai Asayama; Hideki Takasho; Takehiko Kato The application of risk-based technologies not only to in-service inspections but also to the design of components and systems, encompassing a plant life-cycle, is the way to be pursued for the improvement of design of new reactors such as fast breeder...

...Fei Deng; Bin Wu; Cunfu He The temporal-spatial focusing effect of the time-reversal method on the guided wave inspection in pipes was investigated theoretically in the current research with a transfer function. The amplitude of the time-reversed wave propagating along the pipes was not only...

...Guy Roussel; Leon Cizelj The basis for determining the size of the random sample of tubes to be inspected in replacement steam generators is revisited in this paper. A procedure to estimate the maximum number of defective tubes left in the steam generator after no defective tubes have been detected...

... a borescope examination. The objectives were to determine the failure mechanism and to estimate an inspection interval. The measured chemical compositions of the rotating blade and stationary vane are consistent with that of 403 stainless steel. The failure mechanism for the rotating blade is fatigue based...

... XII may be overruled by jurisdictional requirements (e.g., CFR Title 49 requirements within the United States). An inspector that meets requirements set forth by ASME is required for all tanks. The inspector is generally responsible for verification that the inspection and tests specified...

... system internal and external kinetic energy and degenerative hazards and permits a number of ways to lower risk to personnel and structures (e.g., redesign of the pressure system (improve system performance), protection, (reduction of consequences), improved inspection (reduction of event probability...

...Joseph L. Rose The first set of papers in this issue can be categorized as general with topics such as acoustic microscopy, ultrasonic properties of polyethylene materials, a sonic pressure vessel sensor, an acoustic emission condition monitoring system for power plant inspection, automated...

... of its direct application to petrochemical plant. As a principal cause, only representative material is recommended for the risk evaluation while the equipment contains numerous materials. The objectives of this paper are to propose an enhanced risk-based inspection (RBI) method to resolve above...