{"title":"Typical application studies of thermal management technology in nuclear reactor","authors":"Youyou Xu, Jian Deng, Dahuan Zhu, Qi Lu, Jia Liu, Wei Zeng, Xu Ran, Zhifang Qiu, Dongwei Wang","doi":"10.1016/j.anucene.2025.111861","DOIUrl":null,"url":null,"abstract":"<div><div>Thermal management technology is an indispensable key technology in the development of modern high-precision electronic devices, aiming to control the temperature of target objects within an allowable range. In nuclear reactors, characterized by high power density and long operating duration, represent a sustainable and clean energy source, favored by countries around the world. During normal operation, it is necessary to remove heat from the reactor core and heat-generating equipment to ensure the core operates safely and stably; in accident scenarios, the core of accident response failure in removing residual heat from the core to prevent temperatures from exceeding safety limits and causing more severe consequences. As the most complex system in a reactor, researching efficient thermal management systems is a necessary condition for ensuring the safety and efficient operation of DCS(Distributed control system) systems. DCS systems require the development of efficient thermal management systems to ensure their safe and efficient operation. The success or failure of thermal management in DCS systems directly impacts their performance, reliability, environmental comfort, and energy efficiency. In the industrial sector, thermal management technology has evolved from traditional air-cooling to more efficient cooling methods such as liquid cooling and phase-change cooling, significantly improving thermal management efficiency while enabling miniaturization and compactness of thermal management systems. Currently, DCS systems typically employ air-cooling for heat dissipation, resulting in large system sizes, high operational noise, and poor temperature control performance. With the increasing demands on DCS systems for miniaturization, modularization, digitization, and intelligence in nuclear power, coupled with the significant improvement in chip performance leading to a substantial increase in heat flux density, the air-cooling method with its low efficiency has become inadequate to meet the higher heat dissipation requirements of DCS systems. This paper conducts research on the application of thermal management technology in DCS thermal control design. A modular DCS board module model is established, and both air-cooling and liquid loop cooling methods are modeled, calculated, analyzed, and compared. Sensitivity analyses are also performed to provide references for the next step in designing efficient thermal management systems for DCS systems.</div></div>","PeriodicalId":8006,"journal":{"name":"Annals of Nuclear Energy","volume":"226 ","pages":"Article 111861"},"PeriodicalIF":2.3000,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Annals of Nuclear Energy","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0306454925006784","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"NUCLEAR SCIENCE & TECHNOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Thermal management technology is an indispensable key technology in the development of modern high-precision electronic devices, aiming to control the temperature of target objects within an allowable range. In nuclear reactors, characterized by high power density and long operating duration, represent a sustainable and clean energy source, favored by countries around the world. During normal operation, it is necessary to remove heat from the reactor core and heat-generating equipment to ensure the core operates safely and stably; in accident scenarios, the core of accident response failure in removing residual heat from the core to prevent temperatures from exceeding safety limits and causing more severe consequences. As the most complex system in a reactor, researching efficient thermal management systems is a necessary condition for ensuring the safety and efficient operation of DCS(Distributed control system) systems. DCS systems require the development of efficient thermal management systems to ensure their safe and efficient operation. The success or failure of thermal management in DCS systems directly impacts their performance, reliability, environmental comfort, and energy efficiency. In the industrial sector, thermal management technology has evolved from traditional air-cooling to more efficient cooling methods such as liquid cooling and phase-change cooling, significantly improving thermal management efficiency while enabling miniaturization and compactness of thermal management systems. Currently, DCS systems typically employ air-cooling for heat dissipation, resulting in large system sizes, high operational noise, and poor temperature control performance. With the increasing demands on DCS systems for miniaturization, modularization, digitization, and intelligence in nuclear power, coupled with the significant improvement in chip performance leading to a substantial increase in heat flux density, the air-cooling method with its low efficiency has become inadequate to meet the higher heat dissipation requirements of DCS systems. This paper conducts research on the application of thermal management technology in DCS thermal control design. A modular DCS board module model is established, and both air-cooling and liquid loop cooling methods are modeled, calculated, analyzed, and compared. Sensitivity analyses are also performed to provide references for the next step in designing efficient thermal management systems for DCS systems.
期刊介绍:
Annals of Nuclear Energy provides an international medium for the communication of original research, ideas and developments in all areas of the field of nuclear energy science and technology. Its scope embraces nuclear fuel reserves, fuel cycles and cost, materials, processing, system and component technology (fission only), design and optimization, direct conversion of nuclear energy sources, environmental control, reactor physics, heat transfer and fluid dynamics, structural analysis, fuel management, future developments, nuclear fuel and safety, nuclear aerosol, neutron physics, computer technology (both software and hardware), risk assessment, radioactive waste disposal and reactor thermal hydraulics. Papers submitted to Annals need to demonstrate a clear link to nuclear power generation/nuclear engineering. Papers which deal with pure nuclear physics, pure health physics, imaging, or attenuation and shielding properties of concretes and various geological materials are not within the scope of the journal. Also, papers that deal with policy or economics are not within the scope of the journal.