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Boulder, CO, United States

Ciaraldi S.,Technical Integrity
Proceedings of the 22nd Pipeline Pigging and Integrity Management Conference | Year: 2010

A presentation on risk-based inspection covers the purposes of risk analysis; risk definition for pipelines; probability of failure; pipeline corrosion threats; onshore oil and gas pipeline failure; pipeline integrity management; holistic vs. specific risk assessments; and specific risk ranking examples. This is an abstract of a paper presented at the Pipeline Pigging & Integrity Management Conference (Houston, TX 2/17-18/2010). Source


The Czech Republic became a pilot country to carry out a shipment from the NRI to the Russian Federation by means of specially developed casks, which are compatible with both the technology of Russian-designed research reactors and the technology of the reprocessing plant/n the Russian Federation. The crane and lift fixtures are equipped with a digital dynamometer that is used to monitor the weight of the basket during reinstallation into the cask. It prevents the disruption of the central suspension/hanger. The VPVR/M cask underwent three demonstrations to verify that the design was acceptable technically for handling and loading spent fuel at the research reactor facilities and for receiving and unloading at the Mayak facilities in the Russian Federation. NRI is participating in shipments of SNF from other countries within the framework of the GTRI program. Source


Sirnes H.,Technical Integrity | Gundlach T.,Statoil
NACE - International Corrosion Conference Series | Year: 2012

Experience with Black powder in pipelines on the Norwegian Continental Shelf (NCS) is limited to a few pipelines. The cleaning of one of the pipelines has recently started and the analysis of the dust is on-going. Pipeline cleaning or operational pigging is a part of the maintenance program. The business driver for cleaning the pipeline is to be able to perform an inline inspection and avoid under deposit corrosion in the pipeline. 1 First operational cleaning runs after pipeline commissioning gave slurry as the pigging product. Some years later the slurry changed to black powder and caused operational challenges. Due to the low radioactivity (LRA) and the composition of the dust some restrictions for the receiving facility were identified. Modifications at the receiving facilitys have been performed to be able to clean the pipeline in a safe manner. The main business driver for the modifications at the receiving facilities is to ensure an environmentally friendly and safe operation. The dust has not given any problems in daily operation. After the first incident with black powder the Gas Processing Plant installed filter modules to handle the dust in daily operation. Prior to the start of the pipeline cleaning activities, additional filter capacity has been installed in order to ensure a proper protection of the Gas Processing Plant. This paper describes some of the history for the pipeline, the cleaning history, challenges and limitations and the analysis of the dust compared to previous analysis. ©2012 by NACE International. Source


Fltlt B.K.,Technical Integrity | Watters K.C.,QinetiQ
14th Australian International Aerospace Congress, AIAC 2011 | Year: 2011

The Repair Assessment Manual (RAM) was developed to facilitate safety by inspection management of repairs to Royal Australian Air force (RAAF) AP-3C aircraft. Repairs are mapped to representative fatigue critical areas (FCA) in the structure for which damage tolerance analysis data is available from full-scale test interpretation. The severity of the repair relative to the mapped FCA is characterised by peak and far field stress ratios. These stress ratios are used to adjust the inspection threshold and interval of the FCA for application to the repair. All the critical locations in a repair are analysed and the most critical location determines the repair inspection management. The RAM has been issued by the RAAF and is being used routinely for repair assessment. Source


Dian J.,Charles University | Konecny M.,Charles University | Broncova G.,Institute of Chemical Technology Prague | Krondak M.,Institute of Chemical Technology Prague | And 2 more authors.
International Journal of Electrochemical Science | Year: 2013

Electrochemical functionalization of porous silicon surface with polypyrrole via cyclic voltammetry method is presented. Surface morphology and spatial distribution of elements in the porous silicon/polypyrrole layer were inspected using Scanning Electron Microscopy and Energy-Dispersive X-ray Spectroscopy, respectively. Changes of surface chemical composition during electrodeposition were determined by Fourier-transform infrared spectrometry. Porous silicon samples were subsequently tested for selectivity improvement of photoluminescence sensor response in chemical sensors of organic vapors. Combined effect of polarity and size of detected analytes played a decisive role in interaction of analyte with polypyrrole layer and determined modified sensor response of porous silicon/polypyrrole composite. © 2013 by ESG. Source

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