Performance Analysis of a Repository for Low and Intermediate Level Reactor Waste

1986 ◽  
Vol 84 ◽  
Author(s):  
Timo Vieno ◽  
Henrik Nordman ◽  
Seppo Vuori ◽  
Esko Peltonen
Keyword(s):  
Power Plant ◽  
Performance Analysis ◽  
Nuclear Power ◽  
Nuclear Energy ◽  
Fixed Time ◽  
Intermediate Level ◽  
Time Points ◽  
Safety Margins ◽  
Engineered Barriers ◽  
Flexible Model

AbstractIn Finland, utilities producing nuclear energy are responsible for the management of the radioactive waste, including final disposal. As regards low and intermediate level waste, the approach has been adopted to employ the power plant sites for locations of repositories. The repositories will be excavated at the depth of about 50 to 125 m in the bedrock of the two Finnish nuclear power plant sites, Loviisa and Olkiluoto.The performance analysis presented in this paper has been carried out for the Preliminary Safety Analysis Report (PSAR) of the Olkiluoto reposi- tory. A flexible model has been developed to estimate the release of radio- nuclides from waste packages and their subsequent transport through the engi- neered barriers in the repository. Gradual degradation of the engineered barriers is accounted for by altering parameters at fixed time points. Safety margins of the disposal concept have been evaluated by including disturbed evolution scenarios in the analysis.

scholarly journals Rooppur Nuclear Power Plant: Current Status & Feasibility

2018 ◽  
Vol 68 (3) ◽  
pp. 167-182 ◽  
Author(s):  
Saha Sabhasachi ◽  
Roy Koushik ◽  
Roy Souvik ◽  
Rahman Md. Asfakur ◽  
Hasan Md. Zahid
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Energy Demand ◽  
Nuclear Power ◽  
Nuclear Energy ◽  
Energy Generation ◽  
Current Status ◽  
Location Selection ◽  
Generation Plant ◽  
Short Time

AbstractIn the present world, nuclear energy is a must need for various purposes. The main cause of nuclear energy is because of the increasing energy demand, which is not possible to provide by using convenient energy generation. Bangladesh is a lower income country and the energy sector is not so developed here though there is a very high demand for energy. Rooppur Nuclear Power Plant is the only one nuclear generation plant which can provide this kind of huge energy within a very short time. This paper mainly depicts the ins and outs of this plant and discusses it’s feasibility in Bangladesh. It also focuses on the worlds various power generation methods and comprises it with nuclear energy generation. A detailed technical brief is presented in this paper along with advantages, location selection, financial and environmental impacts. This will help researchers to do further researches about nuclear energy in Bangladesh.

EDF Decommissioning Programme: A Global Commitment to a Sustainable Development

2003 ◽  
Author(s):  
Jean-Jacques Grenouillet
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Energy ◽  
Cost Effective ◽  
Eu Enlargement ◽  
Nuclear Industry ◽  
Successful Implementation ◽  
Early Closure

Nowadays, decommissioning of nuclear power plants has become a key issue for nuclear industry in Europe. The phasing out of nuclear energy in Germany, Belgium and Sweden, as well as the early closure of nuclear units in applicant countries in the frame of EU enlargement, has largely contributed to consider decommissioning as the next challenge to face. The situation is slightly different in France where nuclear energy is still considered as a safe, cost-effective and environment friendly energy source. Electricite´ de France (EDF) is working on the development of a new generation of reactor to replace the existing one and erection of a new nuclear power plant could start in the next few years. Nevertheless, to achieve this objective, it will be necessary to get the support of political decision-makers and the acceptance of public opinion. Due to the growing concern of these stakeholders for environmental issues, their support can only be obtained if it is possible to demonstrate that nuclear energy industry will not leave behind unsolved issues that will be a burden to the next generations. In this context decommissioning of the first generation of EDF NPPs constitutes a prerequisite for the erection of a new type of nuclear power plant. This paper will present the programme defined by EDF for the decommissioning of its nine already shutdown reactors (Fig. 1). The reasons of the recent evolution of EDF decommissioning strategy will be explained and the key issues that will contribute to the successful implementation of this programme will be addressed. Finally, what has been achieved on sites so far and major planned activities will be described.

Technical Workforce Education and Training Program at Abu Dhabi Polytechnic: Integration of Academia and Industry Requirements

2018 ◽  
Author(s):  
Anthony Hechanova
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Training Program ◽  
Nuclear Power ◽  
Nuclear Energy ◽  
Education And Training ◽  
Lessons Learned ◽  
Abu Dhabi ◽  
Pressurized Water ◽  
And Training

The United Arab Emirates (UAE) is a developing affluent nation. The leaders of the UAE announced the pursuit of peaceful nuclear power in 2008 and by the end of the following year established its Nuclear Energy Program Implementing Organization (the Emirates Nuclear Energy Corporation (ENEC)), Federal Authority for Nuclear Regulation (FANR), and ordered four APR-1400 pressurized water reactors from the Korean Electric Power Company (KEPCO). Nuclear Engineering programs were initiated soon afterwards at Khalifa University for graduate students and the University of Sharjah for undergraduate students. The technical workforce including nuclear power plant local operators and chemistry and radiation protection personnel was established by ENEC and the Institute of Applied Technology as an inaugural program of Abu Dhabi Polytechnic (AD Poly) in 2011. This paper describes the development of the dual education and training program at AD Poly, the experience of the initial cohorts who conducted their training at the APR-1400 units at the Shin Kori Nuclear Power Plant in Korea, and the current program between the AD Poly Abu Dhabi campus and the new Barakah Nuclear Power Plant based on lessons learned from the earlier years.

New Trends in Accurate Simulations for the Verification of Safety Margins in the Nuclear Power Plant Industry: Application of Virtual Performance Solution™ for the Response of Immersed Structures Subjected to Earthquakes

2011 ◽  
Author(s):  
Alain Tramec¸on ◽  
Jorg Kuhnert ◽  
Laurent Mouchette ◽  
Morgane Perrin
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
Dynamic Simulations ◽  
Finite Point ◽  
Fluid Structure ◽  
Finite Element Software ◽  
Mesh Free ◽  
Safety Margins ◽  
Non Linear

Constraints on the safety of nuclear power plant components have increased recently along with the necessity to extend the lifespan of existing plants. For example, the acceleration levels to be sustained by the plant equipment during an earthquake have been increased many folds by the safety regulation agencies. Industrial and economic requirements plead for a verification of unknown safety margins, by accurate and physics based models taking into account all non-linear effects (for example contacts and fluid structure interaction). These effects are only approximately represented by standard linear analysis tools. Virtual Performance Solution (VPS), developed by ESI Group, includes (among other capabilities) a structural finite element software for non-linear, high velocity, dynamic simulations (PAM-CRASH), as well as a coupled, mesh free CFD module, FPM (Finite Point Method), developed in partnership with Fraunhofer ITWM. This solution accurately predicts fluid structure interactions, taking into account non-linear structural effects (contacts, friction, damping…) as well as complex fluid influences.

scholarly journals The Armenian nuclear power plant: problems of electricity export

2018 ◽  
Vol 212 ◽  
pp. 02010
Author(s):  
Vahe Davtyan
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
Nuclear Energy ◽  
Power Market ◽  
Electric Power Market ◽  
South Caucasus ◽  
Definition Of ◽  
Armenian Nuclear Power Plant

The prerequisites for the development of Armenia’s nuclear power industry are indicated. The main geopolitical problems of operation of the Armenian NPP are revealed through studying the electric power market of the South Caucasus with the definition of the export opportunities of Armenia. The main problems of nuclear fuel supplies to the Armenian NPP are studied. Recommendations are given on the long-term development of nuclear energy in Armenia.

The Best-Estimate Plus Uncertainty (BEPU) Challenge in the Licensing of Current Generation of Reactors

2011 ◽  
Author(s):  
A. Petruzzi ◽  
N. Muellner ◽  
F. D’Auria ◽  
O. Mazzantini
Keyword(s):  
Power Plant ◽  
Nuclear Power ◽  
Current Generation ◽  
Computational Tools ◽  
Best Estimate ◽  
Safety Margins ◽  
Heavy Water Reactor ◽  
Key Steps ◽  
Uncertainty Method ◽  
Selection Of

Within the licensing process of the Atucha II PHWR (Pressurized Heavy Water Reactor) the BEPU (Best Estimate Plus Uncertainty) approach has been selected for issuing of the Chapter 15 on FSAR (Final Safety Analysis Report). The key steps of the entire process are basically two: a) the selection of PIE (Postulated Initiating Events) and, b) the analysis by best estimate models supported by uncertainty evaluation. Otherwise, key elements of the approach are: 1) availability of qualified computational tools including suitable uncertainty method; 2) demonstration of quality; 3) acceptability and endorsement by the licensing authority. The effort of issuing Chapter 15 is terminated at the time of issuing of the present paper and the safety margins available for the operation of the concerned NPP (Nuclear Power Plant) have been quantified.

Analysis and Assessment of Errors of Commission in Nuclear Power Plant Settings

2000 ◽  
Vol 44 (22) ◽  
pp. 851-854
Author(s):  
Oliver Straeter
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
Maintenance Management ◽  
Pressure Injection ◽  
Safety Margins ◽  
Plant Maintenance ◽  
Complex Technical Systems ◽  
Technical Systems ◽  
High Pressure Injection

The term Errors of Commission (EOC) describes a safety problem of complex technical systems where humans intervene into the system functions in an inappropriate way. Most serious events in any technical area are caused by EOCs. Humans shut down a high pressure injection that is needed in the current situation (TMI Nuclear Power Plant), humans decide to continue a test that brings the plant into serious conditions (Chernobyl Nuclear Power Plant), Maintenance Management does not exchange a wheel that is far below the safety margins (Eschede Railway Accident in Germany). Similar examples can be mentioned in other technical systems like Aircraft or Medicine for instance. This paper firstly gives an overview about the problem and the work in that field. It then focuses on some approaches for solution concerning the modeling of cognitive human behaviour.

Results of 16 Years of Testing of Vitrified Intermediate-Level Wastes from the Kursk Nuclear Power Plant

Atomic Energy ◽  
2005 ◽  
Vol 98 (3) ◽  
pp. 196-201 ◽  
Author(s):  
S. A. Dmitriev ◽  
A. S. Barinov ◽  
N. V. Ozhovan ◽  
I. V. Startseva ◽  
Z. I. Golubeva ◽  
...  
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
Intermediate Level

Nuclear power debate and public opinion in Belarus: From Chernobyl to Ostrovets

2016 ◽  
Vol 26 (3) ◽  
pp. 275-288 ◽  
Author(s):  
Aliaksandr Novikau
Keyword(s):  
Public Opinion ◽  
Power Plant ◽  
Nuclear Power Plant ◽  
Risk Communication ◽  
Nuclear Power ◽  
Nuclear Energy ◽  
Traumatic Event ◽  
Nuclear Accident ◽  
Positive View ◽  
The City

The Belarusian government’s decision of the last decade to build a nuclear power plant near the city of Ostrovets, in northern Belarus, has proven to be controversial, resulting in a great deal of debate about nuclear energy in the country. The debate was inevitably shaped by the traumatic event that affected Belarus – the Chernobyl nuclear accident of 1986. The Belarusian authorities have consistently promoted a positive view of nuclear energy to the population in order to overcome the so-called ‘Chernobyl syndrome’ and deliberately shaped nuclear risk communication. As a result, the issue of trust remains crucial in all nuclear debates in Belarus.

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