OPINIE PREZESA PAA, O KTÓRYCH MOWA W ART. 36A I 39B USTAWY – PRAWO ATOMOWE JAKO PRZYKŁAD PRE-LICENCJONOWANIA OBIEKTÓW JĄDROWYCH

2021 ◽  
pp. 389-411
Author(s):  
Tomasz R. Nowacki

This article discusses one of the solutions adopted in the nuclear energy law, which contributes to the reduction of the investment risk. It is the so-called pre-licensing which involves the assessment of key site or technical factors at the pre-investment stage in order to avoid possible problems at the stage of investment implementation. The author analyses the Polish solutions in the context of the general concept of pre-licensing, with particular respect to: the nature of pre-licensing legal instruments (opinions), the scope and requirements of the application for an opinion, and the binding force of pre-licensing acts. The practical significance of this issue is all the greater considering governmental plans to implement nuclear power in Poland and in the light of recent activities of private entities as to the construction of smaller nuclear power plants. In the latter case, prelicensing instruments are already being exercised in practice.

2021 ◽  
Vol 3 (1) ◽  
pp. 1-12
Author(s):  
Hasan Dinçer ◽  
Gülsüm Sena Uluer

Nuclear energy investments are important for the social and economic development of countries. Thanks to these investments, no carbon gas is released into the atmosphere while providing energy. This situation prevents the environmental pollution problem. On the other hand, nuclear energy contributes to countries to obtain uninterrupted electricity. However, the installation of nuclear power plants is now difficult. A serious technological infrastructure is required to build these facilities. This situation is especially important for countries that do not yet have nuclear power plants. In order to increase the use of nuclear energy in these countries, support from nuclear energy companies is required. However, nuclear energy investors may not want to invest in every country. In this study, the factors that affect the investment decisions of nuclear energy investors are analyzed. In this framework, a detailed literature analysis was performed, and 4 different criteria were determined. An analysis was carried out using the Entropy method to determine the most important factor among these factors. According to the results of the analysis, it is determined that the socio-political factors in the country have the most importance in the decisions of nuclear energy investors. Considering these issues, it is understood that countries should pay attention to public acceptance to attract the attention of nuclear energy investors.


2019 ◽  
Vol 5 (3) ◽  
Author(s):  
You Shi ◽  
Dong Ning ◽  
Yi-zhong Yang

Boron carbide (B4C) particle-reinforced aluminum matrix composite is the key material for use as neutron absorber plate in fuel storage applications for Generation III advanced passive nuclear power plants in China. This material has once depended upon importing with various restrictions so that it has meaningful practical significance to realize the localized manufacturing for this material in China. More importantly, since it is the first time for this material to be used in domestic plant, particular care should be taken to assure the formal supplied products exhibit high stabilized and reliable service in domestic nuclear engineering. This paper initiates and proposes a principle design framework from technical view in qualification requirements for this material so as to guide the practical engineering application. Aiming at neutron absorber materials supplied under practical manufacturing condition in engineering delivery, the qualification requirements define B4C content, matrix chemistry, 10B isotope, bulk density, 10B areal density, mechanical property, and microstructure as key criteria for material performance. The uniformity assessment as to different locations of this material is also required from at least three lots of material. Only qualified material meeting all of the qualification requirements should proceed to be verified by lifetime testing such as irradiation, corrosion, and thermal aging testing. Systematic and comprehensive performance assessments and verification for process stabilization could be achieved through the above qualification. The long-term service for this neutron absorber material in reliable and safe way could be convincingly expected in spent fuel storage application in China.


2021 ◽  
Vol 289 ◽  
pp. 01016
Author(s):  
Victor Semenov ◽  
Tatiana Shchepetina ◽  
Vladimir Polevanov ◽  
Yuri Savchenko ◽  
Sergei Popov

The article considers perspectives and institutions for innovative nuclear energy subsector – a small and medium-sized nuclear power plants (SNP). The features of the technologies, prospective sites for their introduction, topics for priority research work, as well as mechanisms for the creation of a new sub-sector of nuclear energy are briefly discussed. The advantages and opportunities of such approach to the energy supply of autonomous and isolated consumers located primarily in remote areas and in the Arctic are indicated. Special attention is paid to the problems of technological and operational safety, economic efficiency, and personnel training. The methodological framework provides a brief integrated description of the possibilities provided by dual-use technologies in solving national economic issues; a list of priority research areas to clarify assessments of the financial and economic efficiency of the SNP subsystem within the Russian nuclear energy industry; as well as proposals for personnel training to ensure a trouble-free and efficient Program implementation process.


Author(s):  
Ф.О. Аракелян ◽  
И.П. Башилов ◽  
Ю.Н. Зубко ◽  
А.В. Николаев ◽  
Д.Г. Левченко

Рассмотрено состояние и перспективы развития атомной энергетики в связи с сейсмической и другими природнотехногенными опасностями. Анализирован опыт эксплуатации АЭС, статистика аварий на АЭС, их причины. В связи с авариями на ряде АЭС и глобальной сменой приоритетов энергетической политики в сторону возобновляемых источников энергии (ветра, солнца, гейзеров и т.п.) многие из технически развитых стран (США, Япония, Германия) заявляют о снижении роли атомной энергетики в собственных энергетических планах. Угроза опасности объединяет усилия таких стран как США, Франция, Россия, Япония, Южная Корея, Канада и Китай в сотрудничестве в области совершенствования технологий, усиления ядерной безопасности и развития ядерной инфраструктуры в странахновичках. Наиболее опасными признаны АЭС Азии, где отмечается повышенная сейсмичность. Благодаря усилиям по повышению безопасности АЭС, сделан вывод о снижении сейсмической опасности в связи с глубокой автоматизацией и передачей основных управляющих функций АЭС программному комплексу, совершенствованием алгоритмов принятия решений в случае землетрясения и других чрезвычайных ситуаций. Одна из главных целей глубоко эшелонированной защиты состоит в блокировании опасностей человеческих ошибок и сочетания отказов оборудования и ошибок операторов и распорядителей. Системы безопасности должны включаться автоматически и на некоторое время блокировать действия оператора АЭС. Эффективной защитой энергоблоков, построенных в последние десятилетия, являются герметичные оболочки (контейменты) и размещение над реактором емкости с большим количеством раствора бора, который выливается на реактор при аварии и нейтрализует радиоактивность в случае ее появления. Более детальный анализ сейсмотектонической ситуации площадок действующих АЭС мира привел к необходимости повышения ускорения безопасного останова в ряде АЭС. При проектировании АЭС недостаточно учитывать магнитуду и интенсивность предполагаемых землетрясений, для инженерных расчетов необходимо использовать конкретные параметры колебаний. Среди них важнейшее место занимает ускорение грунта, по которому можно с максимальной уверенностью судить о потенциальных нагрузках на сооружения и оборудование в зоне землетрясения. Приведена модернизированная система сейсмической защиты (ССЗ1М) энергоблоков отличающаяся надёжностью, отсутствием ложных срабатываний, стабильностью параметров во времени, защитой от внешних несанкционированных воздействий. The state and prospects of the development of nuclear energy in connection with seismic and other natural and technological hazards are considered in the article. The experience of operating nuclear power plants, statistics on accidents at nuclear power plants, and their causes are analyzed. Due to accidents at several nuclear power plants and a global change in energy policy priorities towards renewable energy sources (wind, solar, geysers, etc.), many of the technically developed countries (USA, Japan, Germany) declare a reduction in the role of nuclear energy in their energy plans. The threat of danger unites the efforts of countries such as the USA, France, Russia, Japan, South Korea, Canada and China in cooperation in the field of improving technologies, enhancing nuclear safety and developing nuclear infrastructure in newcomer countries. The most dangerous nuclear plants are located in Asia, where the increased seismicity is noted. As a result of the efforts to improve the safety of nuclear power plants, it is concluded that seismic hazard is reduced due to the deep automation and transfer of the main control functions of the nuclear power plant to the software package, improvement of decisionmaking algorithms in the event of an earthquake and other emergencies. One of the main goals of defense in depth is to block the dangers of human error and the combination of equipment failures and the errors of operators and managers. Safety systems should turn on automatically and block the actions of the NPP operator for a while. Sealed shells (containers) and placement of containers with a large amount of boron solution over the reactor, which is poured onto the reactor in the event of an accident and neutralizes radioactivity in case of its occurrence, are an effective protection for power units built in recent decades. A more detailed analysis of the seismotectonic situation of the sites of existing nuclear power plants in the world has led to the need to increase the acceleration of safe shutdown in several nuclear power plants. When designing a nuclear power plant, it is not enough to take into account the magnitude and intensity of the alleged earthquakes for engineering calculations, it is necessary to use specific vibration parameters. Among them, acceleration of the soil occupies the most important place, by which it is possible to judge with maximum confidence the potential loads on structures and equipment in the earthquake zone. The modernized seismic protection system (SSZ1M) of power units is characterized by reliability, the absence of false alarms, the stability of parameters in time, and protection against external unauthorized influences.


Sign in / Sign up

Export Citation Format

Share Document