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عنوان فارسی مقاله:
ارزیابی آزمون کرنش و تنش شدت یک محفظه تنظیم فشار نیروگاه هسته ای CPR 1000 در طول پیش تحویل تست هیدرواستاتیک
عنوان انگلیسی مقاله:
Strain test and stress intensity assessment of a CPR1000 Nuclear Power Plant pressurizer during pre-delivery hydrostatic test
سال انتشار : 2014
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مقدمه انگلیسی مقاله:
1. Introduction
Pressurizer is one of the most important equipment installed in Nuclear Island (NI) in Nuclear Power Plant. It takes the role of pressure controlling of the primary loop. Generally, pressurizer is a cylindrical vessel with hemispherical heads. In theory, the stress distribution within the pressurizer surface is uniform, if the pressure in the vessel is uniform. The two popular theories for cylindrical vessel stress analysis are thin-walled cylinder theory and thick-walled cylinder theory [1–4]. The effect of the hydrostatic test is the inspection of strength and airtightness [5,6] of the pressurizer. In a hydrostatic test, the internal pressure increases from zero to pressurizer’s design, operating and test level. So this process is useful to evaluate the integrity of the pressurizer. For the intensity assessment of pressurizer, hydrostatic test is only one step of the assessment. Stress analysis is also important for the intensity assessment. Stress analysis is used very widely for researches. For example, stress analysis under internal pressure has been performed a lot for nozzle-to-pipe [7,8] and nozzle-to-sphere [9,10] connections. Leak inspection and geometry inspection are usual methods to evaluate the integrity of pressurizer during the hydrostatic test. However, these inspections cannot get the direct data about the stress condition. Researchers performed some tests and simulations to evaluate the effect of hydrostatic. Rao et al. discussed the failure cases relevant to the pressurizer hydrostatic test [11]. Bhuyan analyzed the retardation effect of a steel gas cylinder with prostatic retest load [12]. Stress and stability analysis has been performed for thick laminated pressure vessels and shells [13–17].
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کلمات کلیدی:
Strain test and stress intensity assessment of a CPR1000 ... - ReadCube www.readcube.com/articles/10.1016%2Fj.csse.2014.09.002 Strain gages are applied to get the strain and stress of a CPR1000 Nuclear Power Plant (NPP) pressurizer during the pre-delivery hydrostatic test. Recent Case Studies in Structural Engineering Articles - Elsevier https://www.journals.elsevier.com/case-studies-in-structural.../recent-articles Recently published articles from Case Studies in Structural Engineering .... of a CPR1000 Nuclear Power Plant pressurizer during pre-delivery hydrostatic test. A III+ Generation Pressurizer Stress Analysis and ... - ASME eBooks ebooks.asmedigitalcollection.asme.org/data/.../asmep/.../v003t03a038-pvp2016-63415.p... Jul 17, 2016 - 2State Nuclear Power Demonstration Plant Co. ... A large scale pressurizer is used in III+ generation Nuclear ..... pre-delivery hydrostatic test. MELCOR simulation of core thermal response during a station ... www.academia.edu/.../MELCOR_simulation_of_core_thermal_response_during_a_st... Demonstration of manageable risk from nuclear power plants is A number of SBO ..... of a nuclear power plant pressurizer during pre-delivery hydrostatic test. Case Studies in Structural Engineering | Directory of Open Access ... https://doaj.org/toc/2214-3998 Mar 1, 2016 - Strain test and stress intensity assessment of a CPR1000 Nuclear Power Plant pressurizer during pre-delivery hydrostatic test. Lin Lei, Xu ...
