Influence of geometry in TRIGA reactor criticality calculation and reactivity determination using Serpent 2 and MCNPX codes

Q4 Energy

International Journal of Nuclear Energy Science and Technology Pub Date : 2017-08-16 DOI:10.1504/IJNEST.2017.10006742

S. Meireles, A. Z. Mesquita, M. Q. Antolin, D. Campolina, D. A. Palma, M. A. Menezes

{"title":"Influence of geometry in TRIGA reactor criticality calculation and reactivity determination using Serpent 2 and MCNPX codes","authors":"S. Meireles, A. Z. Mesquita, M. Q. Antolin, D. Campolina, D. A. Palma, M. A. Menezes","doi":"10.1504/IJNEST.2017.10006742","DOIUrl":null,"url":null,"abstract":"The IPR-R1 TRIGA Mark I research reactor is located at the Nuclear Technology Development Centre (CDTN), in Belo Horizonte, Brazil. It is operating for more than 50 years and was successfully simulated before. However, new techniques and methods used in nuclear reactors analysis make a further simulation inevitable. In this manuscript, the computational model of an initial core of the IPR-R1 TRIGA reactor was developed employing two different Monte Carlo codes, MCNPX and Serpent 2, to simulate the neutronics behaviour. A new model is suggested, more complete, to improve the simulations results making the model more close the experimental data. This work explores how changes could be inserted in order to make the model closer to reality and if such participation would be noticeable in both codes used. The neutronic parameters obtained from these simulations performed in Serpent 2 are compared to MCNPX simulation results at the same conditions, and the results are compared with previous experimental data.","PeriodicalId":35144,"journal":{"name":"International Journal of Nuclear Energy Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2017-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Nuclear Energy Science and Technology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1504/IJNEST.2017.10006742","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Energy","Score":null,"Total":0}

引用次数: 1

Abstract

The IPR-R1 TRIGA Mark I research reactor is located at the Nuclear Technology Development Centre (CDTN), in Belo Horizonte, Brazil. It is operating for more than 50 years and was successfully simulated before. However, new techniques and methods used in nuclear reactors analysis make a further simulation inevitable. In this manuscript, the computational model of an initial core of the IPR-R1 TRIGA reactor was developed employing two different Monte Carlo codes, MCNPX and Serpent 2, to simulate the neutronics behaviour. A new model is suggested, more complete, to improve the simulations results making the model more close the experimental data. This work explores how changes could be inserted in order to make the model closer to reality and if such participation would be noticeable in both codes used. The neutronic parameters obtained from these simulations performed in Serpent 2 are compared to MCNPX simulation results at the same conditions, and the results are compared with previous experimental data.

查看原文本刊更多论文

几何结构对使用Serpent 2和MCNPX代码进行TRIGA反应堆临界计算和反应性确定的影响

IPR-R1 TRIGA Mark I研究反应堆位于巴西贝洛奥里藏特的核技术开发中心（CDTN）。它已经运行了50多年，以前曾成功模拟过。然而，在核反应堆分析中使用的新技术和方法使得进一步的模拟不可避免。在本文中，IPR-R1 TRIGA反应堆初始堆芯的计算模型是使用两种不同的蒙特卡罗代码MCNPX和Serpent 2开发的，以模拟中子学行为。提出了一个更完整的新模型，以改进模拟结果，使模型更接近实验数据。这项工作探讨了如何插入更改，以使模型更接近现实，以及这种参与是否在使用的两种代码中都很明显。将从Serpent 2中进行的这些模拟中获得的中子参数与相同条件下的MCNPX模拟结果进行比较，并将结果与先前的实验数据进行比较。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

International Journal of Nuclear Energy Science and Technology Energy-Nuclear Energy and Engineering

CiteScore

0.80

自引率

0.00%

发文量

期刊介绍： Today, nuclear reactors generate nearly one quarter of the electricity in nations representing two thirds of humanity, and other nuclear applications are integral to many aspects of the world economy. Nuclear fission remains an important option for meeting energy requirements and maintaining a balanced worldwide energy policy; with major countries expanding nuclear energy"s role and new countries poised to introduce it, the key issue is not whether the use of nuclear technology will grow worldwide, even if public opinion concerning safety, the economics of nuclear power, and waste disposal issues adversely affect the general acceptance of nuclear power, but whether it will grow fast enough to make a decisive contribution to the global imperative of sustainable development.