深度次临界工况下的控制棒价值测量技术研究
TL375; 与传统控制棒价值测量技术不同,深度次临界工况下的控制棒价值测量(以下简称次临界刻棒),依托达临界试验的提棒过程,在全插棒至全提棒的大跨度临界区间进行控制棒价值测量.作为一种全新的控制棒价值测量方法,其棒价值的计算和分析与传统的方法有较大的差异,需要开展相关研究.深度次临界工况下,堆芯中子源强的空间分布显著不均匀,传统的基于点堆模型的临界外推公式不再适用,须对源量程中子计数率进行相应的空间修正,确保修正后的源量程探测器的计数率倒数比与反应堆次临界度维持良好的线性关系,从而能够精确预测反应堆的次临界度,并通过拟合的方式给出不同棒组的价值.为了对次临界刻棒系统进行验证,在三门核电厂AP...
Saved in:
| Published in | 核技术 Vol. 48; no. 1; pp. 153 - 161 |
|---|---|
| Main Authors | , , , , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
核电运行研究(上海)有限公司 上海 200126%三门核电有限公司 三门 317100
2025
|
| Subjects | |
| Online Access | Get full text |
| ISSN | 0253-3219 |
| DOI | 10.11889/j.0253-3219.2025.hjs.48.230469 |
Cover
| Abstract | TL375; 与传统控制棒价值测量技术不同,深度次临界工况下的控制棒价值测量(以下简称次临界刻棒),依托达临界试验的提棒过程,在全插棒至全提棒的大跨度临界区间进行控制棒价值测量.作为一种全新的控制棒价值测量方法,其棒价值的计算和分析与传统的方法有较大的差异,需要开展相关研究.深度次临界工况下,堆芯中子源强的空间分布显著不均匀,传统的基于点堆模型的临界外推公式不再适用,须对源量程中子计数率进行相应的空间修正,确保修正后的源量程探测器的计数率倒数比与反应堆次临界度维持良好的线性关系,从而能够精确预测反应堆的次临界度,并通过拟合的方式给出不同棒组的价值.为了对次临界刻棒系统进行验证,在三门核电厂AP1000机型上开展了两次验证试验,各组棒价值均满足验收准则.验证结果表明,开发的次临界刻棒系统具有一定的可靠性,能够满足次临界刻棒试验的要求. |
|---|---|
| AbstractList | TL375; 与传统控制棒价值测量技术不同,深度次临界工况下的控制棒价值测量(以下简称次临界刻棒),依托达临界试验的提棒过程,在全插棒至全提棒的大跨度临界区间进行控制棒价值测量.作为一种全新的控制棒价值测量方法,其棒价值的计算和分析与传统的方法有较大的差异,需要开展相关研究.深度次临界工况下,堆芯中子源强的空间分布显著不均匀,传统的基于点堆模型的临界外推公式不再适用,须对源量程中子计数率进行相应的空间修正,确保修正后的源量程探测器的计数率倒数比与反应堆次临界度维持良好的线性关系,从而能够精确预测反应堆的次临界度,并通过拟合的方式给出不同棒组的价值.为了对次临界刻棒系统进行验证,在三门核电厂AP1000机型上开展了两次验证试验,各组棒价值均满足验收准则.验证结果表明,开发的次临界刻棒系统具有一定的可靠性,能够满足次临界刻棒试验的要求. |
| Abstract_FL | [Background]In a series of startup physics tests,measuring the control rod worth is a critical means to determine whether the actual worth of the control rods matches the design values.This test ensures that the reactivity of the reactor can be precisely controlled through the control rods,thereby ensuring the safe operation of the reactor.Traditional methods for this measurement include the boron dilution method and the dynamic rod worth measurement method.Although these methods are now widely used in nuclear power plants(NPP),there is still potential for further improvement in both safety and economic performance.Subcritical control rod worth measurement does not require equipment transformation and on-site operations,which makes it easier to implement whilst control rod worth measurement under deep subcritical conditions is totally a different technique with respect to traditional control rod worth measurements,which changes the reactor condition from the Low Power Physics Test(LPPT)window after reaching criticality to the Criticality Approach Test(CAT)window before reaching criticality.The test conditions vary from near-critical condition to deep subcritical condition,making the core much safer.[Purpose]This study aims to minimize the risk of core re-criticality during control rod withdrawal by measuring control rod worth within existing test windows without occupying the critical path.[Methods]Subcritical control rod worth measurement was implemented within the window of startup physics tests,saving outage time and improving the economic efficiency of the power plant,hence no additional work was required for subcritical control rod worth measurement test,except for collecting relevant data while measuring the worth of control rods during the test.Two functional modules,namely the spatial correction factor calculation module and the data processing and display module were developed for subcritical control rod calibrating system.Under deep subcritical conditions,the traditional point reactor model was no longer applicable due to the significant impact on neutron flux distribution caused by the external neutron sources,therefore,a different approach was adopted to calculate the effects of external neutron sources on neutron flux distribution under deep subcriticality by carrying out a spatial correction of count rate to ensure a linear relationship between the corrected count rate and the subcriticality.Finally,two verification tests of subcritical control rod worth measurement were conducted on the AP1000 reactors at Sanmen Nuclear Power Plant(NPP),the count rate of the source range detector and reactor condition data were collected,and processed for quality improvement and spatial correction of count rate.[Results]Verification results show the linearity of the corrected count rate achieved is above 0.999,and the maximum subcriticality provided is approximately 0.1,indicating that the experimental conditions are in a deep subcritical state.All sets of control rod worth values meet the acceptance criteria requirement of a relative deviation of 10%or an absolute deviation of 75 pcm.[Conclusions]The results met the acceptance criteria of control rod worth,providing preliminary verification of the accuracy and reliability of calculation system under deep subcritical conditions. |
| Author | 杨高升 杜超 卑华 钱仲悠 高明敏 司胜义 陈伦寿 |
| AuthorAffiliation | 核电运行研究(上海)有限公司 上海 200126%三门核电有限公司 三门 317100 |
| AuthorAffiliation_xml | – name: 核电运行研究(上海)有限公司 上海 200126%三门核电有限公司 三门 317100 |
| Author_FL | GAO Mingmin YANG Gaosheng BEI Hua DU Chao SI Shengyi QIAN Zhongyou CHEN Lunshou |
| Author_FL_xml | – sequence: 1 fullname: SI Shengyi – sequence: 2 fullname: BEI Hua – sequence: 3 fullname: CHEN Lunshou – sequence: 4 fullname: QIAN Zhongyou – sequence: 5 fullname: DU Chao – sequence: 6 fullname: GAO Mingmin – sequence: 7 fullname: YANG Gaosheng |
| Author_xml | – sequence: 1 fullname: 司胜义 – sequence: 2 fullname: 卑华 – sequence: 3 fullname: 陈伦寿 – sequence: 4 fullname: 钱仲悠 – sequence: 5 fullname: 杜超 – sequence: 6 fullname: 高明敏 – sequence: 7 fullname: 杨高升 |
| BookMark | eNo9j8tKw0AYhWdRwbb6FoKrjP9cMhdwI8UbFNx0X9JkRgmSgkHcdiEqVhREN-JCERVBEME2RX2cZIJvYURxdQ4c-A5fA9WSfmIQmieACVFKL8QYqM88RonGtKp4K04xV5gy4ELXUP1_nkaNNI0BuAbu19Giy16L9wf3fJtP3srLkyK7Lw5G-WRYXu2708fiaOzuzvOPrBh8utHw6_DMHQ_c9Ut5c1E-jWfQlA22UzP7l03UWVnutNa89sbqemup7aVaC08pwyVwzngoQxuIyBLfSMp7pseIEUZqCZHmVmkehSEA2EBZSiQoZn1fCtZEc7_YvSCxQbLZjfu7O0l12K0sf2yBABHsGyL3YZQ |
| ClassificationCodes | TL375 |
| ContentType | Journal Article |
| Copyright | Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
| Copyright_xml | – notice: Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
| DBID | 2B. 4A8 92I 93N PSX TCJ |
| DOI | 10.11889/j.0253-3219.2025.hjs.48.230469 |
| DatabaseName | Wanfang Data Journals - Hong Kong WANFANG Data Centre Wanfang Data Journals 万方数据期刊 - 香港版 China Online Journals (COJ) China Online Journals (COJ) |
| DatabaseTitleList | |
| DeliveryMethod | fulltext_linktorsrc |
| Discipline | Engineering |
| DocumentTitle_FL | Study on control rod worth measurement technique under deep subcritical condition |
| EndPage | 161 |
| ExternalDocumentID | hjs202501016 |
| GroupedDBID | -03 2B. 4A8 5XA 5XD 92H 92I 93N ABJNI ACGFS ALMA_UNASSIGNED_HOLDINGS CCEZO CEKLB CW9 GROUPED_DOAJ PSX TCJ TGT U1G U5M |
| ID | FETCH-LOGICAL-s996-88e4704434c7cfa6df15e724beb31e6e7970d94f894dcc000fa8f217083f55763 |
| ISSN | 0253-3219 |
| IngestDate | Thu May 29 03:54:29 EDT 2025 |
| IsPeerReviewed | true |
| IsScholarly | true |
| Issue | 1 |
| Keywords | 源量程探测器 Inverse count rate ratio 控制棒价值测量 Control rod worth measurement 空间修正因子 计数率倒数比 Source range detector 次临界度 Spatial correction factor Subcriticality |
| Language | Chinese |
| LinkModel | OpenURL |
| MergedId | FETCHMERGED-LOGICAL-s996-88e4704434c7cfa6df15e724beb31e6e7970d94f894dcc000fa8f217083f55763 |
| PageCount | 9 |
| ParticipantIDs | wanfang_journals_hjs202501016 |
| PublicationCentury | 2000 |
| PublicationDate | 2025 |
| PublicationDateYYYYMMDD | 2025-01-01 |
| PublicationDate_xml | – year: 2025 text: 2025 |
| PublicationDecade | 2020 |
| PublicationTitle | 核技术 |
| PublicationTitle_FL | Nuclear Techniques |
| PublicationYear | 2025 |
| Publisher | 核电运行研究(上海)有限公司 上海 200126%三门核电有限公司 三门 317100 |
| Publisher_xml | – name: 核电运行研究(上海)有限公司 上海 200126%三门核电有限公司 三门 317100 |
| SSID | ssj0049045 ssib001129530 ssib051373102 ssib023167186 ssib001526398 |
| Score | 2.434505 |
| Snippet | TL375;... |
| SourceID | wanfang |
| SourceType | Aggregation Database |
| StartPage | 153 |
| Title | 深度次临界工况下的控制棒价值测量技术研究 |
| URI | https://d.wanfangdata.com.cn/periodical/hjs202501016 |
| Volume | 48 |
| hasFullText | 1 |
| inHoldings | 1 |
| isFullTextHit | |
| isPrint | |
| link | http://utb.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwnV3NaxQxFA9tBdGD-IlflR4MHsquM5lkkoCXmXWWIuhphd7KfFo8rOBuLz31ICpWFEQv4kERFUEQwXaL-n_4D3Rn8b_wvczs7tQtantZQvLey--9N7N5ySQvhFwUkUriJMXP6iGDCYqd1MLU0TUn5Cpx3Ywn5paI6zfchZv82qJYnJr-Wdm1tNKN6vHqrudK9uNVqAO_4inZPXh2JBQqoAz-hV_wMPz-l49p4FJfUt-mgaC-Rz0Xa7wG9aCGU19Rn9NAUi2oahgaST2BBQWMoqRRvqHxqOLIrgLqSUMD7IVAh2pmiH2UgE0W9Rumd2HYNVWSqqZh97AVChpgNFGyZ1FtYHgaBFajYSPcQgwTjMMHwfTWNCSA1MFGBAId6h0kV6m2y4IKxi2aao2KIE_D2EcgKr-5g4QZExb6MYOFAa7qgkhxbNo8vBXQEhVDO4KlmlRbWADTo63_VBsC-aG5vdJwPi7DlAorXWJFIaCFQC8OVZ-f5MRMkObezJETCwHQm9oN4B46GQuah6jPtqzKWMGEU3OGo085sHE18QIXo5Rd5GcuAx67yIY_OZYqpc1gOhJeR3PXl2936rgrEr-p63EYMdrcCe1IZ5IXTpMDTLouq6x1mDgdokxR_ZwrmFvJQ8kwPYM9zmsobEc6Js9dEWJxbZnbx0fADpJLQ8SX_47XnM1rZ2H7ViWMbB0lR8r535xXvMzHyNTq8nFyuJIV9AS5kve-9L-9zz-92d76OnjxuN9717-_sb21Pnh5L3_yof9wM3_7bPt7r7_2I99Y__Xgaf5oLX_1efD6-eDj5knSagatxkKtvOSk1sH9_0qlXFqcOzyWcRa6SWaLVDIepZFjp24qtbQSzTOleRLHEL9kocqYLWHmlAkBwcEpMtO-005PkzkhIxaFMYt1KLidWaFIsjSGCUeUKOHGyRkyW6q-VP6HdZaqvjr7j_Zz5BCWi_XH82Sme3clnYWIvBtdMN79DV8Kohw |
| linkProvider | Directory of Open Access Journals |
| openUrl | ctx_ver=Z39.88-2004&ctx_enc=info%3Aofi%2Fenc%3AUTF-8&rfr_id=info%3Asid%2Fsummon.serialssolutions.com&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.atitle=%E6%B7%B1%E5%BA%A6%E6%AC%A1%E4%B8%B4%E7%95%8C%E5%B7%A5%E5%86%B5%E4%B8%8B%E7%9A%84%E6%8E%A7%E5%88%B6%E6%A3%92%E4%BB%B7%E5%80%BC%E6%B5%8B%E9%87%8F%E6%8A%80%E6%9C%AF%E7%A0%94%E7%A9%B6&rft.jtitle=%E6%A0%B8%E6%8A%80%E6%9C%AF&rft.au=%E5%8F%B8%E8%83%9C%E4%B9%89&rft.au=%E5%8D%91%E5%8D%8E&rft.au=%E9%99%88%E4%BC%A6%E5%AF%BF&rft.au=%E9%92%B1%E4%BB%B2%E6%82%A0&rft.date=2025&rft.pub=%E6%A0%B8%E7%94%B5%E8%BF%90%E8%A1%8C%E7%A0%94%E7%A9%B6%28%E4%B8%8A%E6%B5%B7%29%E6%9C%89%E9%99%90%E5%85%AC%E5%8F%B8+%E4%B8%8A%E6%B5%B7+200126%25%E4%B8%89%E9%97%A8%E6%A0%B8%E7%94%B5%E6%9C%89%E9%99%90%E5%85%AC%E5%8F%B8+%E4%B8%89%E9%97%A8+317100&rft.issn=0253-3219&rft.volume=48&rft.issue=1&rft.spage=153&rft.epage=161&rft_id=info:doi/10.11889%2Fj.0253-3219.2025.hjs.48.230469&rft.externalDocID=hjs202501016 |
| thumbnail_s | http://utb.summon.serialssolutions.com/2.0.0/image/custom?url=http%3A%2F%2Fwww.wanfangdata.com.cn%2Fimages%2FPeriodicalImages%2Fhjs%2Fhjs.jpg |