In this study, a new lumped-mass-stick model （LMSM） is developed based on the modal characteristics of a structure such as eigenvalues and eigenvectors. The simplified model, named the ＂frequency adaptive lumped-ma...In this study, a new lumped-mass-stick model （LMSM） is developed based on the modal characteristics of a structure such as eigenvalues and eigenvectors. The simplified model, named the ＂frequency adaptive lumped-massstick model,＂ hasonly a small number of stick elements and nodes to provide the same natural frequencies of the structure and is applied to a nuclear containment building. To investigate the numerical performance of the LMSM, a time history analysis is carried out on both the LMSM and the finite element model （FEM） for a nuclear containment building. A comparison of the results shows that the dynamic responses of the LMSM in terms of displacement and acceleration are almost identical to those of the FEM. In addition, the results in terms of floor response spectra at certain elevations are also in good agreement.展开更多
This paper details the prospects for a civil nuclear power station in Estonia. Due to its climate change commitments, Estonia needs a new source of electricity provision. There is little academic literature on Estonia...This paper details the prospects for a civil nuclear power station in Estonia. Due to its climate change commitments, Estonia needs a new source of electricity provision. There is little academic literature on Estonia, and this research builds upon previous work but is more detailed in its analysis with primary data included in the form of interviews with Estonian energy industry experts. All the conditions that have led to nuclear energy being considered as an option are assessed, along with why it represents the most strategic path for Estonia in terms of electricity provision. Through the interview analysis a framework is established and advanced for the successful initiation of a national nuclear power plant project. This research is therefore of high value for small EU countries who intend to consider nuclear energy as an option in their energy mix or have more advanced plans to develop a nuclear program.展开更多
英国新建核电厂(Nuclear New Build,简称NNB)拟采用的候选堆型在建造前通常要求对其从核安全和核安保两个方面进行审查,即所谓的"通用设计审查(Generic Design Assessment,简称GDA)"。本文对英国核安全监管体系下新建核电厂...英国新建核电厂(Nuclear New Build,简称NNB)拟采用的候选堆型在建造前通常要求对其从核安全和核安保两个方面进行审查,即所谓的"通用设计审查(Generic Design Assessment,简称GDA)"。本文对英国核安全监管体系下新建核电厂取证过程进行了分析研究,包括:英国主要核安全监管部门、监管范围和流程、通用设计审查及其在英国新建核电厂审批过程中的地位等,重点就审查依据、审查流程、送审文件准备等进行介绍和分析。文章最后还总结了执行通用设计审查将面临的主要风险和挑战,为我国核电企业开展通用设计审查给出了具体建议。展开更多
基金Energy Efficiency & Resources of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), Ministry of Knowledge Economy, Republic of Korea under Grant No. 2010T100101066
文摘In this study, a new lumped-mass-stick model （LMSM） is developed based on the modal characteristics of a structure such as eigenvalues and eigenvectors. The simplified model, named the ＂frequency adaptive lumped-massstick model,＂ hasonly a small number of stick elements and nodes to provide the same natural frequencies of the structure and is applied to a nuclear containment building. To investigate the numerical performance of the LMSM, a time history analysis is carried out on both the LMSM and the finite element model （FEM） for a nuclear containment building. A comparison of the results shows that the dynamic responses of the LMSM in terms of displacement and acceleration are almost identical to those of the FEM. In addition, the results in terms of floor response spectra at certain elevations are also in good agreement.
文摘This paper details the prospects for a civil nuclear power station in Estonia. Due to its climate change commitments, Estonia needs a new source of electricity provision. There is little academic literature on Estonia, and this research builds upon previous work but is more detailed in its analysis with primary data included in the form of interviews with Estonian energy industry experts. All the conditions that have led to nuclear energy being considered as an option are assessed, along with why it represents the most strategic path for Estonia in terms of electricity provision. Through the interview analysis a framework is established and advanced for the successful initiation of a national nuclear power plant project. This research is therefore of high value for small EU countries who intend to consider nuclear energy as an option in their energy mix or have more advanced plans to develop a nuclear program.
文摘英国新建核电厂(Nuclear New Build,简称NNB)拟采用的候选堆型在建造前通常要求对其从核安全和核安保两个方面进行审查,即所谓的"通用设计审查(Generic Design Assessment,简称GDA)"。本文对英国核安全监管体系下新建核电厂取证过程进行了分析研究,包括:英国主要核安全监管部门、监管范围和流程、通用设计审查及其在英国新建核电厂审批过程中的地位等,重点就审查依据、审查流程、送审文件准备等进行介绍和分析。文章最后还总结了执行通用设计审查将面临的主要风险和挑战,为我国核电企业开展通用设计审查给出了具体建议。
