摘要
超导直流能源管道本体是实现电力/液化天然气一体化输送的关键部件,承担着能源输送、高效热耦合和主动安全防御等功能。对超导直流能源管道原理验证样机进行了实验测试和仿真分析,获得了稳态运行时的管道沿程温度分布,其中出口温度测量值为95.5 K,仿真计算值为95.18 K。沿程温度分布仿真值和测量值偏差不超过1%,验证了仿真模型的正确性和仿真方法的有效性。基于实验验证的仿真模型和方法,对四种典型的能源管道本体结构进行了仿真分析。对比不同管道结构的温度场和流场仿真结果,获得了各种管道结构的特点,为超导直流能源管道的设计和优化提供了理论指导。
Superconducting DC energy pipeline(SDCEP) body is the key component to realize the integrated transmission of power and liquified natural gas(LNG), which undertakes the functions of energy transmission, efficient thermal coupling, and active security defense. The experimental test and simulation analysis were carried out on the prototype of SDCEP, and the temperature distribution along the pipeline during steady-state operation was obtained. The measured value of the outlet temperature is 95.5 K, and the simulated value is 95.18 K. The deviation between the simulated value and the measured value is less than 1%, which verifies the correctness of the simulation model and the effectiveness of the simulation method. Based on the simulation model and method verified by experiments, four typical energy pipeline structures were simulated and analyzed. The simulation results of temperature field and flow field of different pipeline structures were compared, and the characteristics of various pipeline structures were obtained, which will provide theoretical guidance for the design and optimization of SDCEP.
作者
陈建辉
张国民
邱清泉
陈晓刚
靖立伟
Chen Jianhui;Zhang Guomin;Qiu Qingquan;Chen Xiaogang;Jing Liwei(University of Chinese Academy of Sciences,Beijing 100190,China;Institute of Electrical Engineering,Chinese Academy of Sciences,Beijing 100190,China;Key Laboratory of Applied Superconductivity,Chinese Academy of Sciences,Beijing 100190,China;State Grid Zhejiang Electric Power Co.,Ltd,Hangzhou 310007,China)
出处
《低温与超导》
CAS
北大核心
2021年第7期6-13,52,共9页
Cryogenics and Superconductivity
基金
国家重点研发计划(2018YFB0904400)
国家电网公司科技项目(52110418003H)资助。
关键词
超导电缆
液化天然气输送
温度分布
有限元分析
Superconducting cables
LNG transmission
Temperature distribution
Finite element analysis
