Nuclear Power Plants Safety
Challenges in the Application of Probabilistic Safety Goals for Nuclear Power Plants
... operating nuclear power plants (NPP) and new ...probabilistic safety criteria should be defined and ...that safety goals are valuable tools for the interpretation of results from a ...
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Historical Development of the Seismic Design Requirements for Nuclear Power Plants Worldwide and Their Impact on Cost and Safety
... On soil sites the first and third effects are generally controlled by the use of selected engineered backfill. The effect of overturning and sliding, assuming that a foundation failure has been precluded, depends on the ...
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Ageing related events at nuclear power plants
... Growing whiskers were identified to have caused in- advertent electrical conductive connections and lead to malfunctions or short circuits on the affected I&C com- ponents. Tin whiskers are electrically conductive ...
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Predictive Shutdown Systems for Nuclear Power Plants
... on safety and operability given that these strategies are now being imple- mented within the monitoring and supporting controllers of potentially hazardous ...a safety-critical system, it is expected that ...
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Airplane Impact on Nuclear Power Plants (J595)
... At first the actual attack situation is shortly discussed including active means to avoid such situations already by general safety measures. Then the general methods to cheque building structure with regard to ...
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Review of applications of Nano Fluids for heat transfer & efficiency of Safety Systems in Nuclear Power Plants
... to nuclear power systems (i.e., primary coolant, safety systems, and severe accident mitigation strategies) are discussed especially the Critical Heat Flux limit and quenching ...
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Resilience improvements to UK nuclear power plants
... European Nuclear Safety Regulators Group (ENSREG) on behalf of the European Council and in December 2011, ONR assessed the UK NPP licensees own assessments against this specification and compiled the UK ...
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Cable ageing at nuclear power plants
... There is thus no place for any change in material composition even if evidence can be given that the new material has equal or better properties. There are numerous examples of incidents that have resulted in failed ...
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Site evaluation for nuclear power plants
... IAEA-NS-R-3 [IAEA, 2016] requires investigating above flood condition depending on geographical location of the site, whether it is in river valley or in flood plain or coastal. Both probabilistic and deterministic ...
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Safety Reports Series No.32. Implementation of Accident Management Programmes in Nuclear Power Plants
... The development of EOPs, SAMGs or similar systems entails the con- version of high level strategies into easily usable procedures or guidelines. Emergency operating procedures and SAMGs should be fully symptom based. ...
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Tornado vs. Hurricane, Which is More Detrimental to the Safety of the US Nuclear Power Plants
... Designing safety-related nuclear power plant structures for tornado and hurricane winds requires four different assessments: (1) local assessment for minimum concrete thickness, which checks for ...
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Seismic Response of Electrical Equipment in Nuclear Power Plants
... the safety of their plant structures, systems, and ...affect safety-related equipment, EPRI (2015) has established a high-frequency testing program to determine the vulnerability of relays and various other ...
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German Nuclear Power Plants Utility Ageing Management-Long term Fatigue Evaluation of Safety Relevant Components
... In other countries measures to control degradation mechanisms have been introduced also in order to meet ageing relevant individual problems as well as fundamental topics like long term integrity assessment of ...
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AN AUTOMATIC MAINTENANCE SYSTEM FOR NUCLEAR POWER PLANTS INSTRUMENTATION
... in nuclear power plants, with an average of ...plant safety conditions working in two directions: minimising the time to carry out the tests and reducing the risk of human ...
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Measurement of Dynamic Temperatures and Pressures in Nuclear Power Plants
... To measure the true value of a process variable it is essential that the sensors chosen fit the application and provide very accurate and stable calibration for steady-state measurements and fast dynamic response for ...
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Earthquake Fatigue Analysis for CANDU Nuclear Power Plants
... The safety philosophy for CANDU nuclear power plants (NPP) requires the primary heat transport system and certain other high- pressure systems to be designed to withstand the Design Basis ...
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Aging Management of Concrete Structures in Nuclear Power Plants
... ! AMPs and methodologies have been developed for NPPs and are generally well established. Programme structures for concrete and civil structures are similar to other plant component programmes, such as electrical or ...
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Regulation of Nuclear Power Plants – A Multi Objective Approach
... In the past, normally, the resolution of such a kind of optimization problem has been limited to focus only on a single parameter (STI, AOT, PM frequency, etc.) and/or adopting a single optimization criterion ...
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Process Data Reconciliation in Nuclear Power Plants (D435)
... reactor power) to be calculated with consistently high ...reactor power calculation may incorporate an unacceptably large deviation, negatively impacting both safety and ...
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Process Data Validation in CCGT and Nuclear Power Plants
... Figure 4 compares the feed water mass flow of the four steam generators with the reconciled values. The deviation between the measured feed water mass flow and the reconciled mass flow is 25 kg/s, equivalent to 1 % of ...
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