Status of ongoing research on SCWR thermal-hydraulics and safety
Bibliographic record
Abstract
SCWR (<strong>S</strong>uper<strong>C</strong>ritical pressure <strong>W</strong>ater-cooled <strong>R</strong>eactor) is an advanced reactor concept which has advantages in improving economics while utilizing most of the existing PWR and BWR technologies as well as fossil fuel power plant technologies. The Generation IV International Forum selected the SCWR as one of the viable candidates of a nuclear power plant to be deployed by 2030, especially for economic electricity generation. In order to organize and support the multi-lateral collaboration among the member countries, the SCWR Steering Committee has been established in March, 2007, and several Project Management Boards (PMBs) such as Thermal-Hydraulics and Safety, Material and Chemistry, System Integration and Assessment, and Fuel Qualification have followed.<br /><br />Since the formation of the provisional SCWR Thermal-Hydraulics and Safety Project Management Board (TH&S PMB) in November 2004, the participating countries, Canada, EU (as a consortium), Japan (as a consortium), and Korea have been working hard on the preparation of the Project Plan (PP). This plan is a kernel part of the Project Arrangement (PA) and will serve as a basic document for the forthcoming multilateral collaboration. The endorsement of the PA by the participating countries is expected to be completed no later than the end of 2009. The PP describes the coordinated research activities in the technology development area (TDA) of SCWR TH&S. In the System Research Plan (SRP), the required research items have been identified and these include heat transfer, hydraulic characteristics, critical flow, identification of safety requirements and evaluation, stability, development of system codes and relevant methodologies, subchannel analysis, and simulation of system performance and behavior during transient and accident. Most of these items can be performed on an individual basis, but others may require the integrated efforts of all or some participants. The PP describes the framework of the collaboration scheme, required resources, estimated schedule and deliverables. It will be reviewed annually by the PMB members and may be modified on the suggestion of the Signatories and the approval of the System Steering Committee.<br /><br />In the meantime, a considerable amount of work has been accomplished by the member countries and arrangements will be made for those identified as shared items as soon as the PA is signed. In this paper, the accomplishment of the member countries in the SCWR thermal-hydraulics and safety area is described briefly. Besides the member countries China is actively working on the SCWR thermal-hydraulics research but it will not be covered in this paper. Russia is also considering joining this PMB but its decision has not yet been made.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".