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Keywords: pressure vessel
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eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2023
ISBN: 978-0-8031-7741-3
..., such as international research projects with relevant contributions from Spanish organizations and the monitoring of neutron fluence facing long-term operation. radiation embrittlement neutron fluence pressure vessel surveillance program long-term operation Spain RADIATION EMBRITTLEMENT TREND CURVES...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2018
ISBN: 978-0-8031-7651-5
... An overview of the Spanish reactor pressure vessel surveillance programs is presented. This overview includes a description of the surveillance capsules that have been analyzed in the operating reactors to date. Several important considerations regarding the long-term operation of the Spanish...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2018
ISBN: 978-0-8031-7651-5
... An overview of the long-term operation (LTO) conditions in European nuclear power plants is presented herein together with recommendations for the reactor pressure vessel (RPV) surveillance programs based on the work performed in the international project LONGLIFE (Treatment of Long-Term...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2012
ISBN: 978-0-8031-7536-5
... The approach of improved uncertainty-accounted conservative evaluation of vodo-vodyanoi energetichesky reactor (VVER) (reactor-) pressure-vessel (RPV) radiation loading parameters has been proposed. This approach is based on the calculational–experimental procedure, which takes into account C/E...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2001
ISBN-10: 0-8031-2884-3
ISBN: 978-0-8031-2884-2
... Calculational-experimental methodology is used for radiation exposure determination of WWER-1000 reactor pressure vessels operating in Ukraine. It includes numerical neutron transport calculations within reactor near-vessel space and ex-vessel dosimetry measurements at operating units. Fluxes...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2001
ISBN-10: 0-8031-2884-3
ISBN: 978-0-8031-2884-2
... experiment that will be developed next year. PHWR pressure vessel ex-vessel dosimetry neutron transport calculation spectrum adjustment A. F. Albomoz,1H. Blaumann,1E. M. Lopasso,xA. Blanco,1G. Gennuso, 1and O. Serra1 Improved Evaluation of the Atueha-I Ex-Vessel Dosimetry Reference: Albornoz...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2001
ISBN-10: 0-8031-2884-3
ISBN: 978-0-8031-2884-2
... A new neutron-gamma coupled MATXS-format library, which is designated KASHIL-E6, has been generated for shielding or reactor pressure vessel dosimetry applications. The library was tested against the NESDIP-2 experiment for application to the RPV dosimetry. Dosimetry analyses on the surveillance...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2000
ISBN-10: 0-8031-2852-5
ISBN: 978-0-8031-2852-1
... Material properties of the Novovoronesh-1 pressure vessel were characterized after 20 years of plant operation. The unit was the first commercial PWR unit in Russia producing 210 MW electric power. It was commissioned in 1964 and shut down in 1984. Wall thickness of the vessel is 120 mm...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1999
ISBN-10: 0-8031-2614-X
ISBN: 978-0-8031-2614-5
... It has recently been proposed that the unequal attenuation of γ-rays and fast neutrons in the water gaps of boiling water reactors may lead to a significant underprediction of the atomic displacement rate at the pressure vessel wall. Since a larger water gap has been incorporated in the design...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1999
ISBN-10: 0-8031-2614-X
ISBN: 978-0-8031-2614-5
... in the material irradiated at a lower dose rate. irradiation embrittlement carbon steel pressure vessel dose rate effect Charpy shift irradiation hardening ageing low flux post-irradiation annealing recovery Masahide Suzuki~,Yoshio Idei2,MinoruKizaki3,and Kunio Onizawa 4 EFFECTS OF DAMAGE RATE...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1997
ISBN-10: 0-8031-2423-6
ISBN: 978-0-8031-2423-3
... To improve the in-service behaviour of Cr Mo (V) steel grades used for the pressure vessels operating in hydrogen environment at high temperature for the oil industry, the manufacture of heavy forgings needs a high quality. Improvement of the standard and enhanced strength (ASME Case 1960) 2 l/4...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1995
ISBN-10: 0-8031-2018-4
ISBN: 978-0-8031-2018-1
... reconstituted and 10 mm inserts can be reconstituted with limited success. Charpy V-Notch reconstitution projection welding upper shelf energy pressure vessel steel A302B A533B modified A302B James F. Williams a Regis P. Shogan b Leo Albertin a THE OPTIMIZATION OF INSERT SIZE FOR RECONSTITUTING...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1994
ISBN-10: 0-8031-1899-6
ISBN: 978-0-8031-1899-7
... For Reactor Pressure Vessel (RPV) neutron fluence monitoring at a nuclear power plant (NPP) with VVER-type reactor the Russian Nuclear Regulatory Body (GOSATOMNADZOR) has recently recommended use of the ex-vessel cavity dosimetry combined with neutron transport calculations. By using activation...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1994
ISBN-10: 0-8031-1899-6
ISBN: 978-0-8031-1899-7
... A general description of limitations that exist in pressure vessel neutron fluence determinations for commercial light water reactors is presented. Complexity factors that arise in light water reactor pressure vessel neutron fluence calculations are identified and used to analyze calculational...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1994
ISBN-10: 0-8031-1899-6
ISBN: 978-0-8031-1899-7
... approximation of the fast flux at the level of the surveillance capsules. light water reactor pressure vessel surveillance fast fluence Roger M. de Wouters, 1 J. D'Hondt 2 Dominique J. Laurent, I and Pierre ANALYSIS OF WITH MCBEND PWR PRESSURE VESSEL SURVEILLANCE DOSIMETRY R E F E R E N C E : de...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1994
ISBN-10: 0-8031-1997-6
ISBN: 978-0-8031-1997-0
... pressure vessel case study Ralph L Stephen& 1 Timothy B. Adams ~ and Stephen L. Carlson I Equating Damped Vibration to Constant Amplitude Fatigue Loading for a ThickWalled Pressure Vessel REFERENCE: Stephens, R. I., Adams, T. B., and Carlson, S. L., "Equating Damped Vibration to Constant Amplitude...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1994
ISBN-10: 0-8031-1488-5
ISBN: 978-0-8031-1488-3
... this licensing decision is the ability of the pressure vessel to maintain assurance of integrity. Nuclear power operates in “licensing space”. It is different from most other technologies. To sustain operation, or ever to begin to build new nuclear plants in licensing space, we, the technologists, must document...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1993
ISBN-10: 0-8031-1867-8
ISBN: 978-0-8031-1867-6
... The primary purpose of this work is to develop analytical solutions that could be used to assess the safety of irradiated nuclear reactor pressure vessels against unstable fracture during thermal shock events with repressurization present. This methodology makes use of a constraint straight beam...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1993
ISBN-10: 0-8031-1478-8
ISBN: 978-0-8031-1478-4
... The microstructural evolution of a pressure vessel steel (C shell base metal) was studied after a long-term irradiation (13 years) in the surveillance program of a CHOOZ A reactor. The positron lifetime technique was used to determine if the neutron-induced damage is partially composed of voids...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1992
ISBN-10: 0-8031-1477-X
ISBN: 978-0-8031-1477-7
... We have studied the microstructural evolution of a pressure vessel steel (C shell base metal) irradiated in CHOOZ A reactor surveillance capsules. This material has been irradiated at 265°C with fluences ranging from 2.2 × 10 19 to 14 × 10 19 n ∙ cm -2 ( E > 1 MeV); the longest...