Neutronic and thermal-hydraulic assessment of the TRR with new core designed based on tubular fuels

IF 0.4 4区工程技术 Q4 NUCLEAR SCIENCE & TECHNOLOGY

Kerntechnik Pub Date : 2023-11-09 DOI:10.1515/kern-2023-0042

Rahman Gharari, Farrokh Khoshahval, Mostafa Hasanzadeh, M. Amin Mozaffari, M. Amin Amirkhani, Hadi Esmaili

引用次数: 0

Abstract

Abstract Herein, the feasibility study of the Tehran Research Reactor (TRR) with a new core designed based on tubular fuels from the neutronic, thermal-hydraulic, safety, and operational points of are investigated using MCNPX, WIMS, CITATION, Computational Fluid Dynamics (CFD), and RELAP codes. According to the results, the total neutron flux in the new core with tubular fuels is increased by more than 14.3 % compared with the current core of the TRR with plate-type fuels. Moreover, due to the higher fuel amount in the tubular compared with plate-type fuels (about 17 % in similar conditions), its effective multiplication factor is much higher than the TRR with plate-type fuels. Moreover, the results show that the maximum cladding temperature is sufficiently lower than 105 °C and the produced heat in the tubular fuel are removed without changing the current flow rate of the core. Furthermore, the maximum fuel temperature in tubular fuel is about 10 °C lower than the maximum fuel temperature in the current standard fuel element.

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基于管状燃料设计的新型堆芯TRR的中子和热水力评价

摘要利用MCNPX、WIMS、CITATION、计算流体动力学(CFD)和RELAP等软件，对基于管状燃料设计的德黑兰研究堆(TRR)新堆芯的可行性进行了研究。结果表明，新型管状燃料堆芯的总中子通量比现有板式燃料堆芯提高了14.3%以上。此外，由于管状燃料的燃料量高于板式燃料(在相同条件下约为17%)，其有效倍增系数远高于板式燃料的TRR。结果表明，在不改变堆芯电流流量的情况下，最大包层温度足以低于105℃，并消除了管状燃料中产生的热量。此外，管状燃料的最高燃料温度比目前标准燃料元件的最高燃料温度低约10℃。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Kerntechnik 工程技术-核科学技术

CiteScore

0.90

自引率

20.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Kerntechnik is an independent journal for nuclear engineering (including design, operation, safety and economics of nuclear power stations, research reactors and simulators), energy systems, radiation (ionizing radiation in industry, medicine and research) and radiological protection (biological effects of ionizing radiation, the system of protection for occupational, medical and public exposures, the assessment of doses, operational protection and safety programs, management of radioactive wastes, decommissioning and regulatory requirements).