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Latest research progress for LBE coolant reactor of China initiative accelerator driven system project

《能源前沿(英文)》 2021年 第15卷 第4期   页码 810-831 doi: 10.1007/s11708-021-0760-1

摘要: China’s accelerator driven subcritical system (ADS) development has made significant progress during the past decade. With the successful construction and operation of the international prototype of ADS superconducting proton linac, the lead-based critical/subcritical zero-power facility VENUS-II and the comprehensive thermal-hydraulic and material test facilities for LBE (lead bismuth eutectic) coolant, China is playing a pivotal role in advanced steady-state operations toward the next step, the ADS project. The China initiative Accelerator Driven System (CiADS) is the next facility for China’s ADS program, aimed to bridge the gaps between the ADS experiment and the LBE cooled subcritical reactor. The total power of the CiADS will reach 10 MW. The CiADS engineering design was approved by Chinese government in 2018. Since then, the CiADS project has been fully transferred to the construction application stage. The subcritical reactor is an important part of the whole CiADS project. Currently, a pool-type LBE cooled fast reactor is chosen as the subcritical reactor of the CiADS. Physical and thermal experiments and software development for LBE coolant were conducted simultaneously to support the design and construction of the CiADS LBE-cooled subcritical reactor. Therefore, it is necessary to introduce the efforts made in China in the LBE-cooled fast reactor to provide certain supporting data and reference solutions for further design and development for ADS. Thus, the roadmap of China’s ADS, the development process of the CiADS, the important design of the current CiADS subcritical reactor, and the efforts to build the LBE-cooled fast reactor are presented.

关键词: LBE (lead bismuth eutectic) coolant reactor     China initiative Accelerator Driven System (CiADS) project     research progress    

加速器驱动次临界系统装置部件用材发展战略研究

王志光,姚存峰,秦芝,孙建荣,庞立龙,申铁龙,朱亚滨,崔明焕,魏孔芳

《中国工程科学》 2019年 第21卷 第1期   页码 39-48 doi: 10.15302/J-SSCAE-2019.01.006

摘要:

加速器驱动次临界系统(ADS)由强流高能离子加速器、高功率散裂靶和次临界反应堆三大分系统组成。作为未来先进核裂变能——加速器驱动先进核能系统(ADANES)的重要组成部分,ADS装置的研发对推动我国能源革命、促进能源转型以及刺激核能行业创新发展具有重大作用。本文以ADANES研发为背景,阐述了ADS装置的研发现状、可能的发展趋势以及ADS部件对材料的需求,重点探讨了ADS装置中高功率散裂靶和次临界反应堆部件用关键材料的研发进展与存在问题,面临的发展机遇和挑战,最后提出了几点发展对策,力求助力我国ADS装置的建设与先进核裂变能技术创新,推动未来先进核裂变能的安全高效和可持续发展。

关键词: 加速器驱动次临界系统(ADS)     加速器驱动先进核能系统(ADANES)     关键材料     次临界反应堆     高功率散裂靶    

中国ADS 铅基反应堆设计与研发进展 Review

吴宜灿

《工程(英文)》 2016年 第2卷 第1期   页码 124-131 doi: 10.1016/J.ENG.2016.01.023

摘要:

2011年,在中国科学院战略性先导专项“未来先进核裂变能——加速器驱动次临界嬗变系统”等项目的支持下,针对加速器驱动次临界系统和第四代铅冷快堆的技术发展目标和试验要求,完成了具有临界和加速器驱动次临界双模式运行能力的10 MW中国铅基研究堆CLEAR-I的概念设计,建成了KYLIN系列铅铋回路试验平台,并在此基础上开展了反应堆冷却剂技术、关键组件、结构材料与燃料、反应堆运行与控制技术等铅铋反应堆关键技术的研发。为验证及测试铅基堆关键组件和综合操作技术,正在开展铅合金冷却非核反应堆CLEAR-S、铅基零功率核反应堆CLEAR-0和铅基虚拟反应堆CLEAR-V的建设。

关键词: 加速器驱动次临界系统     中国铅基反应堆     铅铋共晶     技术研发进展    

Engine-driven hybrid air-conditioning system

Chaokui QIN , Hongmei LU , Xiong LIU , Gerhard SCHMITZ ,

《能源前沿(英文)》 2009年 第3卷 第1期   页码 109-116 doi: 10.1007/s11708-009-0003-3

摘要: A hybrid air-conditioning system that combines an engine-driven chiller with desiccant dehumidification was configured and experimentally tested to provide reliable data for energy consumption and operation cost. The engine performance and the desiccant wheel performance were measured and a numeric model previously set up for dehumidification capacity prediction was validated. For a reference building, the results based upon measured data show that under present electricity/gas price ratio, more than 40% of operation cost can be saved by the hybrid system.

关键词: engine-driven chiller     desiccant wheel     hybrid air-conditioning system     energy consumption    

Recent advances in system reliability optimization driven by importance measures

Shubin SI, Jiangbin ZHAO, Zhiqiang CAI, Hongyan DUI

《工程管理前沿(英文)》 2020年 第7卷 第3期   页码 335-358 doi: 10.1007/s42524-020-0112-6

摘要: System reliability optimization problems have been widely discussed to maximize system reliability with resource constraints. Birnbaum importance is a well-known method for evaluating the effect of component reliability on system reliability. Many importance measures (IMs) are extended for binary, multistate, and continuous systems from different aspects based on the Birnbaum importance. Recently, these IMs have been applied in allocating limited resources to the component to maximize system performance. Therefore, the significance of Birnbaum importance is illustrated from the perspective of probability principle and gradient geometrical sense. Furthermore, the equations of various extended IMs are provided subsequently. The rules for simple optimization problems are summarized to enhance system reliability by using ranking or heuristic methods based on IMs. The importance-based optimization algorithms for complex or large-scale systems are generalized to obtain remarkable solutions by using IM-based local search or simplification methods. Furthermore, a general framework driven by IM is developed to solve optimization problems. Finally, some challenges in system reliability optimization that need to be solved in the future are presented.

关键词: importance measure     system performance     reliability optimization     optimization rules     optimization algorithms    

Gain-enhanced reconfigurable radiation array with mechanically driven system and directive elements

《机械工程前沿(英文)》 2022年 第17卷 第4期 doi: 10.1007/s11465-022-0716-0

摘要: In the artificial intelligence-driven modern wireless communication system, antennas are required to be reconfigurable in terms of size according to changing application scenarios. However, conventional antennas with constant phase distributions cannot achieve enhanced gains in different reconfigurable sizes. In this paper, we propose a mechanically reconfigurable radiation array (RRA) based on miniaturized elements and a mechanically reconfigurable system to obtain gain-enhanced antennas in compact and deployed states. A five-element RRA with a phase-reconfigurable center element is designed and analyzed theoretically. The experimental sample has been fabricated, driven by a deployable frame with only one degree of freedom to realize the size and phase distribution reconfiguration simultaneously to validate the enhanced gains of RRA. The proposed RRA can be tessellated into larger arrays to achieve higher gains in other frequency regimes, such as terahertz or photonics applications with nanometer fabrication technology.

关键词: mechanism     reconfigurable radiation array (RRA)     compact state     deployed state     enhanced gain    

直接驱动Z箍缩的FLTD型脉冲功率源的发展

孙凤举,邱爱慈,曾正中,曾江涛,丛培天

《中国工程科学》 2009年 第11卷 第11期   页码 56-63

摘要:

介绍了快直线型变压器(FLTD)脉冲源的技术特点;概述了美国圣地亚国家实验室与俄罗斯强流电子学研究所合作研制的FLTD-Z模块的新进展,基于FLTD拟重复频率运行的针对聚变能源(IFE)应用的原理性样机Z-POP装置,以及下一代惯性约束核聚变(ICF)和IFE用的指标为6 MV,60 MA/90 MA和100 ns FLTD型直接驱动脉冲源的概念设想;初步分析了FLTD直接驱动源需要研究的关键技术。

关键词: 快Z箍缩     直接驱动     FLTD型脉冲加速器     高功率脉冲加速器     概念设计    

Proportional directional valve based automatic steering system for tractors Project supportedby the Synergistic Innovation Center of Modern Agricultural Equipment and Technology, China (No.

Jin-yi LIU,Jing-quan TAN,En-rong MAO,Zheng-he SONG,Zhong-xiang ZHU

《信息与电子工程前沿(英文)》 2016年 第17卷 第5期   页码 458-464 doi: 10.1631/FITEE.1500172

摘要: Most automatic steering systems for large tractors are designed with hydraulic systems that run on either constant flow or constant pressure. Such designs are limited in adaptability and applicability. Moreover, their control valves can unload in the neutral position and eventually lead to serious hydraulic leakage over long operation periods. In response to the problems noted above, a multifunctional automatic hydraulic steering circuit is presented. The system design is composed of a 5-way-3- position proportional directional valve, two pilot-controlled check valves, a pressure-compensated directional valve, a pressurecompensated flow regulator valve, a load shuttle valve, and a check valve, among other components. It is adaptable to most open-center systems with constant flow supply and closed-center systems with load feedback. The design maintains the lowest pressure under load feedback and stays at the neutral position during unloading, thus meeting the requirements for steering. The steering controller is based on proportional-integral-derivative (PID) running on a 51-microcontroller-unit master control chip. An experimental platform is developed to establish the basic characteristics of the system subject to stepwise inputs and sinusoidal tracking. Test results show that the system design demonstrates excellent control accuracy, fast response, and negligible leak during long operation periods.

关键词: Automatic steering system     Hydraulic circuit     Proportional directional valve     Proportional-integral-derivative (PID) control    

Simulation and experiments on a solid sorption combined cooling and power system driven by the exhaust

Peng GAO, Liwei WANG, Ruzhu WANG, Yang YU

《能源前沿(英文)》 2017年 第11卷 第4期   页码 516-526 doi: 10.1007/s11708-017-0511-5

摘要: A solid sorption combined cooling and power system driven by exhaust waste heat is proposed, which consists of a MnCl sorption bed, a CaCl sorption bed, an evaporator, a condenser, an expansion valve, and a scroll expander, and ammonia is chosen as the working fluid. First, the theoretical model of the system is established, and the partitioning calculation method is proposed for sorption beds. Next, the experimental system is established, and experimental results show that the refrigerating capacity at the refrigerating temperature of –10°C and the resorption time of 30 min is 1.95 kW, and the shaft power is 109.2 W. The system can provide approximately 60% of the power for the evaporator fan and the condenser fan. Finally, the performance of the system is compared with that of the solid sorption refrigeration system. The refrigerating capacity of two systems is almost the same at the same operational condition. Therefore, the power generation process does not influence the refrigeration process. The exergy efficiency of the two systems is 0.076 and 0.047, respectively. The feasibility of the system is determined, which proves that this system is especially suitable for the exhaust waste heat recovery.

关键词: solid sorption     exhaust waste heat     combined cooling and power system     exergy efficiency    

Digital technology-driven smart society governance mechanism and practice exploration

《工程管理前沿(英文)》 2023年 第10卷 第2期   页码 319-338 doi: 10.1007/s42524-022-0200-x

摘要: A smart society is an advanced form of society following agricultural society, industrial society, and information society, with digital data processing system as its main carrier. However, the governance of a smart society still faces many challenges. In view of this problem, first, this research constructs a smart society governance modernization strategy. Second, the innovation mode of a society governance mechanism driven by digital technology is proposed, including the precise intellectual control of a digital twin, the intelligent ubiquitous sensing of the Internet of Things, the empowerment remodeling of a blockchain and the livelihood service of artificial intelligence. Third, this study systematically explores the practice of smart society governance modernization from the aspects of basic information platform construction, evaluation system construction, application demonstration of epidemic prevention and control driven by big data, support of spatial intelligence and artificial intelligence technology for people’s livelihood, smart campus, public resources, and data governance application demonstration to provide theoretical guidance for promoting digital technology innovation in the process of the governance of a smart society.

关键词: digital technology     new infrastructure     smart society     governance system     governance modernization    

An Internet-of-Things Initiative for One Belt One Road (OBOR)

Li Da Xu

《工程管理前沿(英文)》 2016年 第3卷 第3期   页码 206-223 doi: 10.15302/J-FEM-2016039

摘要: A wide range of industrial Internet of Things (IoT) applications have been developed and deployed in recent years. IoT has provided a promising opportunity to build powerful industrial systems and applications by leveraging the growing ubiquity of RFID, wireless, mobile and sensor devices. In an effort to understand the development of IoT in industries, this paper reviews the current research of IoT, key enabling technologies, major IoT applications in industries, and identifies research trends and challenges. As IoT has received support from governments and businesses across the globe, IoT will also greatly impact One Belt One Road (OBOR) in foreseeable future.

关键词: Internet of Things (IoT)     RFID     Wireless Sensor Networks     Near Field Communications     ICT    

企业资源计划项目综合评价指标及应用实例

陈志祥,吴俊峰

《中国工程科学》 2005年 第7卷 第3期   页码 35-41

摘要:

企业资源计划(ERP)是推进企业电子化管理的一个重要举措。近年来,我国企业实施ERP的热情很高,国内各种报刊杂志对为什么要实施ERP、如何实施ERP讨论得多;但是对ERP系统的实施评价问题研究比较少。文章把企业应用能力水平与应用效果联系起来建立一个ERP项目的综合评价指标体系,并以一家企业为案例背景,介绍了指标体系的应用情况,总结了该公司的经验,供其他企业参考。

关键词: 企业资源计划     效果评价     案例    

材料基因组计划与先进材料

陈立泉

《工程(英文)》 2015年 第1卷 第2期   页码 169-169 doi: 10.15302/J-ENG-2015056

新型混合动力汽车全数字电力驱动系统的研究

孙玉坤,张好明

《中国工程科学》 2009年 第11卷 第4期   页码 57-62

摘要:

混合动力汽车电机要求高效、高功率密度、低脉动转矩,普通电机显示出了其局限性;Halbach电机是一种新型永磁电机:独特的永磁体结构使其磁极磁场呈单边且正弦分布,在增加气隙磁通密度、削弱转子轭部磁通密度的同时,又可减少磁场谐波,这有利于提高电机的功率密度和效率、减小电机的体积和脉动转矩;基于MATLAB的Halbach电机设计软件和基于ANSYS有限元分析软件极大地减少了样机设计时间;针对Halbach电机特点设计了基于DSP2407A混合动力汽车全数字电力驱动系统,实验结果证明Halbach电机在混合动力

关键词: 混合动力汽车     电力驱动系统     Halbach阵列     永磁电机     有限元分析     电机设计    

深度神经网络加速器体系结构概述 Review

陈怡然, 谢源, 宋凌皓, 陈凡, 唐天琪

《工程(英文)》 2020年 第6卷 第3期   页码 264-274 doi: 10.1016/j.eng.2020.01.007

摘要:

最近,由于可使用的大数据和计算能力的快速增长,人工智能重新获得了巨大的关注和投资。机器学习(ML)方法已成功应用于解决学术界和工业界的许多问题。尽管大数据应用的高速增长为ML的发展提供动力,但它也给传统计算机系统带来了数据处理速度和可扩展性方面的严峻挑战。专门为AI应用程序设计的计算平台已经从对冯·诺依曼(von Neumann)平台的补充发展到必备的独立技术解决方案。这些平台属于更大的类别,被称为“专有域计算”,专注于针对AI的特定定制。在本文中,我们特别总结了用于深度神经网络(DNN)的加速器设计(即DNN加速器)的最新进展。我们从计算单元、数据流优化、网络模型、基于新兴技术的体系结构以及针对新兴应用的加速器等方面讨论支持DNN执行的各种体系结构。我们还提供了有关AI芯片设计未来趋势的展望。

关键词: 深度神经网络     特定领域体系结构     加速器    

标题 作者 时间 类型 操作

Latest research progress for LBE coolant reactor of China initiative accelerator driven system project

期刊论文

加速器驱动次临界系统装置部件用材发展战略研究

王志光,姚存峰,秦芝,孙建荣,庞立龙,申铁龙,朱亚滨,崔明焕,魏孔芳

期刊论文

中国ADS 铅基反应堆设计与研发进展

吴宜灿

期刊论文

Engine-driven hybrid air-conditioning system

Chaokui QIN , Hongmei LU , Xiong LIU , Gerhard SCHMITZ ,

期刊论文

Recent advances in system reliability optimization driven by importance measures

Shubin SI, Jiangbin ZHAO, Zhiqiang CAI, Hongyan DUI

期刊论文

Gain-enhanced reconfigurable radiation array with mechanically driven system and directive elements

期刊论文

直接驱动Z箍缩的FLTD型脉冲功率源的发展

孙凤举,邱爱慈,曾正中,曾江涛,丛培天

期刊论文

Proportional directional valve based automatic steering system for tractors Project supportedby the Synergistic Innovation Center of Modern Agricultural Equipment and Technology, China (No.

Jin-yi LIU,Jing-quan TAN,En-rong MAO,Zheng-he SONG,Zhong-xiang ZHU

期刊论文

Simulation and experiments on a solid sorption combined cooling and power system driven by the exhaust

Peng GAO, Liwei WANG, Ruzhu WANG, Yang YU

期刊论文

Digital technology-driven smart society governance mechanism and practice exploration

期刊论文

An Internet-of-Things Initiative for One Belt One Road (OBOR)

Li Da Xu

期刊论文

企业资源计划项目综合评价指标及应用实例

陈志祥,吴俊峰

期刊论文

材料基因组计划与先进材料

陈立泉

期刊论文

新型混合动力汽车全数字电力驱动系统的研究

孙玉坤,张好明

期刊论文

深度神经网络加速器体系结构概述

陈怡然, 谢源, 宋凌皓, 陈凡, 唐天琪

期刊论文