Cryogenics最新文献_第9页

Two-dimensional network flow modeling of no-vent tank filling of a cryogenic tank with thermodynamic vent system assisted injector

IF 1.8 3区工程技术

Cryogenics Pub Date : 2024-12-09 DOI: 10.1016/j.cryogenics.2024.104004

Alok Majumdar , Andre LeClair , Jason Hartwig , S. Mostafa Ghiaasiaan

{"title":"Two-dimensional network flow modeling of no-vent tank filling of a cryogenic tank with thermodynamic vent system assisted injector","authors":"Alok Majumdar , Andre LeClair , Jason Hartwig , S. Mostafa Ghiaasiaan","doi":"10.1016/j.cryogenics.2024.104004","DOIUrl":"10.1016/j.cryogenics.2024.104004","url":null,"abstract":"<div><div>A finite volume-based network flow modeling tool, Generalized Fluid System Simulation Program (GFSSP), was used to simulate the no-vent filling of a cryogenic tank with a thermodynamic vent system assisted injector. The tank was discretized into nodes in the radial and axial directions to calculate two-dimensional axisymmetric flow with heat transfer between the solid wall and fluid. The nodes are connected by branches where momentum equations are solved to calculate the flowrates. The mass and energy conservation equations and the equation of state are solved to calculate pressure, temperature, and resident mass at the nodes. The energy conservation equations at the solid nodes were solved to calculate the temperature of the solid wall. The system of equations was solved by a combination of successive substitution and simultaneous Newton-Raphson method. The numerical model accounts for a) different regimes of pool boiling heat transfer, b) condensation of vapor around the spray droplets, c) condensation of vapor at the interface of the cooled injector and ullage, and d) condensation at the liquid–vapor interphase. The numerical predictions of tank pressure, filling rate, and wall temperatures were compared with the test data. The paper also presents the effect of nodal discretization by comparing the results of the 1D and 2D models and examines the effect of the droplet diameter on tank filling. The results of this study indicate that GFSSP is suitable for scoping analysis of no-vent tank fill transients and can therefore be a useful complementary analytical tool, along with experiments and CFD simulations, for research on no-vent tank refill.</div></div>","PeriodicalId":10812,"journal":{"name":"Cryogenics","volume":"146 ","pages":"Article 104004"},"PeriodicalIF":1.8,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158658","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Critical performance of a Nb3Sn Rutherford cable insert coil for 14 T MRI magnet

IF 1.8 3区工程技术

Cryogenics Pub Date : 2024-12-05 DOI: 10.1016/j.cryogenics.2024.103998

Yunhao Liu , Yi Sun , Yu Wu , Yi Shi , Fang Liu , Chao Dai , Jinggang Qin

{"title":"Critical performance of a Nb3Sn Rutherford cable insert coil for 14 T MRI magnet","authors":"Yunhao Liu , Yi Sun , Yu Wu , Yi Shi , Fang Liu , Chao Dai , Jinggang Qin","doi":"10.1016/j.cryogenics.2024.103998","DOIUrl":"10.1016/j.cryogenics.2024.103998","url":null,"abstract":"<div><div>The Institute of Plasma Physics Chinese Academy of Sciences (ASIPP) has been engaged the conceptual design and prototype coil development for the main coil of the whole-body 14 T magnetic resonance imaging (MRI) superconducting magnet since 2017. In order to improve the thermal and mechanical stability of the coil, a type of conductor called Rutherford cable-in-channel (RIC) will be used in the main coil of the 14 T MRI magnet system. The Rutherford cable is the core component of the RIC conductor. Assessing the electromagnetic performance of the Rutherford cable under operating conditions allows prediction and evaluation of the performance of RIC conductors and 14 T MRI magnets. In order to verify the critical performance of the Rutherford cable, a 2-layer, 2-turn (2 × 2) insert coil was manufactured and tested under a WM3 (maximum magnetic field of 20 T) resistive magnet at the High Magnetic Field Laboratory of the Chinese Academy of Science (CHMFL). The insert coil reaches a critical current of 3489.2 A with n-value of 24.39 after 12 times of quench training under a 14 T background field. The joint resistance is around 20 nΩ. The design, fabrication, testing and analysis of 2 × 2 insert coil will be presented in this paper.</div></div>","PeriodicalId":10812,"journal":{"name":"Cryogenics","volume":"146 ","pages":"Article 103998"},"PeriodicalIF":1.8,"publicationDate":"2024-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143159189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of carbon ion implantation on the superconducting properties of MgB2 bulks prepared by powder-in-sealed-tube method 碳离子注入对封管粉末法制备MgB2块体超导性能的影响

IF 1.8 3区工程技术

Cryogenics Pub Date : 2024-11-28 DOI: 10.1016/j.cryogenics.2024.103994

J.S. Hansdah , P.M. Sarun , K. Asokan

{"title":"Effect of carbon ion implantation on the superconducting properties of MgB2 bulks prepared by powder-in-sealed-tube method","authors":"J.S. Hansdah , P.M. Sarun , K. Asokan","doi":"10.1016/j.cryogenics.2024.103994","DOIUrl":"10.1016/j.cryogenics.2024.103994","url":null,"abstract":"<div><div>We studied the effect of carbon (C) ion implantation on the microstructure and superconducting properties of bulk MgB<sub>2</sub> prepared by the powder-in-sealed-tube (PIST) method. FESEM and TEM analysis indicate microstructural changes due to carbon ion implantation. DC magnetization measurements reveal a slight improvement of T<sub>C</sub> and small ΔT<sub>C</sub> values due to ion implantation. The J<sub>C</sub>(B) characteristics of implanted samples show a significant enhancement of J<sub>C</sub> compared with pristine MgB<sub>2</sub> at 10 and 20 K. MgB<sub>2</sub> samples implanted with 80 keV carbon ions with a dose of 2 × 10<sup>16</sup> ions cm<sup>−2</sup> show maximum enhancement in J<sub>C</sub> i.e., 2.07 × 10<sup>5</sup> A/cm<sup>2</sup> at 5 T and 10 K. The flux pinning force density curves are theoretically analyzed using the Dew-Hughes model. The results reveal that significant enhancements in the flux pinning properties are contributed by the normal point defects caused by carbon ion implantation, which acts as a strong pinning center.</div></div>","PeriodicalId":10812,"journal":{"name":"Cryogenics","volume":"145 ","pages":"Article 103994"},"PeriodicalIF":1.8,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142747208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A study on the potential of cryogenic cooling and cutting technique in reducing the decommissioning cost of offshore monopiles 低温冷却与切割技术在降低海上单桩退役成本方面的潜力研究

IF 1.8 3区工程技术

Cryogenics Pub Date : 2024-11-26 DOI: 10.1016/j.cryogenics.2024.103991

Kenneth Bisgaard Christensen , Alireza Maheri , M.Amir Siddiq , Shahin Jalili

{"title":"A study on the potential of cryogenic cooling and cutting technique in reducing the decommissioning cost of offshore monopiles","authors":"Kenneth Bisgaard Christensen , Alireza Maheri , M.Amir Siddiq , Shahin Jalili","doi":"10.1016/j.cryogenics.2024.103991","DOIUrl":"10.1016/j.cryogenics.2024.103991","url":null,"abstract":"<div><div>This paper presents a feasibility study of the Cryogenic Cooling and Cutting System (CCCS), an embrittlement-based technique for offshore wind monopile foundations. The CCCS employs cryogenic treatment of the monopile wall surface to significantly reduce its impact energy absorption capability significantly, aiming to achieve shorter overall cutting time than conventional cutting techniques. Through numerical analysis, the performance of CCCS is assessed and compared with the Abrasive Water Jet (AWJ) technique, revealing that CCCS offers up to 46.8 times faster cutting speeds and reduces cutting times by 87.1 % – 97.9 % across various monopile diameters and wall thicknesses. These improvements indicate the potential for substantial reductions in the cost and emissions associated with Offshore Wind Farm (OWF) decommissioning. Specifically, the application of CCCS could reduce the total foundation removal operation time by 28 %, resulting in 23 % savings in vessel leasing costs for a real-world OWF decommissioning project. Our findings suggest that the proposed CCCS technique enhances cutting efficiency and contributes significantly to the economic and environmental sustainability of OWF decommissioning. This study aims to demonstrate the CCCS technique’s unique advantages over conventional methods, such as AWJ, by significantly reducing both cutting times and environmental impact, thereby enhancing the sustainability and cost-effectiveness of offshore wind farm decommissioning.</div></div>","PeriodicalId":10812,"journal":{"name":"Cryogenics","volume":"145 ","pages":"Article 103991"},"PeriodicalIF":1.8,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142747207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Simulation and experimental investigation on kinetic and thermodynamic characteristics of liquid nitrogen droplets impacting superheated wall 液氮液滴撞击过热壁的动力学和热力学特性的模拟和实验研究

IF 1.8 3区工程技术

Cryogenics Pub Date : 2024-11-23 DOI: 10.1016/j.cryogenics.2024.103993

Yanan Li , Xiufang Liu , Qingshuo Miao , Jiajun Chen , Fuhao Zhong , Mian Zheng , Yu Hou

{"title":"Simulation and experimental investigation on kinetic and thermodynamic characteristics of liquid nitrogen droplets impacting superheated wall","authors":"Yanan Li , Xiufang Liu , Qingshuo Miao , Jiajun Chen , Fuhao Zhong , Mian Zheng , Yu Hou","doi":"10.1016/j.cryogenics.2024.103993","DOIUrl":"10.1016/j.cryogenics.2024.103993","url":null,"abstract":"<div><div>Liquid nitrogen droplets impacting superheated wall is an essential phenomenon in cryogenic phase-change spray cooling. In this study, the Volume of Fluid (VOF) method was used to develop a numerical model to investigate the kinetic and thermodynamic characteristics of liquid nitrogen droplets impacting superheated wall. The experiment for the impact of liquid nitrogen droplets was conducted to validate the simulation. The findings indicate that liquid nitrogen droplets impacting superheated wall exhibit three boiling regimes: contact boiling, transition boiling, and film boiling. During contact boiling, as <em>We</em> increases, droplets undergo three modes sequentially: spreading, forming fingering-like structures, and fragmentation. During transition boiling and film boiling, as <em>We</em> increases, droplets exhibit spreading, splashing, and fragmentation. Increasing the wall temperature leads to the formation of vapor pockets and vapor film, which results in deteriorated heat transfer at the solid–liquid contact area, and meanwhile reducing the extent of droplet spreading. Increasing <em>We</em> promotes droplet spreading, reducing vapor pockets and vapor film thickness, increasing wetting area, and postpones the onset of heat transfer deterioration. Increasing the wall temperature and <em>We</em> both lead to a higher decreasing rate of liquid volume of droplet which indicates an intensified vaporization rate. The larger the contact angle of the wall, the less the droplet spreads, and the lower the heat transfer between the droplets and the wall.</div></div>","PeriodicalId":10812,"journal":{"name":"Cryogenics","volume":"145 ","pages":"Article 103993"},"PeriodicalIF":1.8,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142700352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A helium isotope separation cryostat with an entropy filter cooled by a G-M cryocooler 一个氦同位素分离低温恒温器与熵过滤器由一个G-M制冷机冷却

IF 1.8 3区工程技术

Cryogenics Pub Date : 2024-11-22 DOI: 10.1016/j.cryogenics.2024.103992

Liguo Wang , Qianxi Qu , Huan Chen , Niannian Dai , Wanyin Zhao , Peng Jia , Dong Xu , Laifeng Li

{"title":"A helium isotope separation cryostat with an entropy filter cooled by a G-M cryocooler","authors":"Liguo Wang , Qianxi Qu , Huan Chen , Niannian Dai , Wanyin Zhao , Peng Jia , Dong Xu , Laifeng Li","doi":"10.1016/j.cryogenics.2024.103992","DOIUrl":"10.1016/j.cryogenics.2024.103992","url":null,"abstract":"<div><div>To obtain ultra-high purity <sup>4</sup>He, a helium isotope separation cryostat including an entropy filter cooled by a G-M cryocooler was constructed. This cryostat provided possibility for continuous separation of helium isotopes. The entire separation process comprised two stages determined by the state of helium flow through the entropy filter: the startup stage and the steady stage. In this paper, the separation effect under these two stages has been studied, with <sup>3</sup>He concentration being tested by Helix SFT™ Mass Spectrometry. The concentration of <sup>3</sup>He were <span><math><mrow><mn>3.31</mn><mo>×</mo><msup><mrow><mn>10</mn></mrow><mrow><mo>-</mo><mn>8</mn></mrow></msup></mrow></math></span>,<span><math><mrow><mn>6.39</mn><mo>×</mo><msup><mrow><mn>10</mn></mrow><mrow><mo>-</mo><mn>10</mn></mrow></msup></mrow></math></span> and <span><math><mrow><mn>2.41</mn><mo>×</mo><msup><mrow><mn>10</mn></mrow><mrow><mo>-</mo><mn>10</mn></mrow></msup></mrow></math></span> for the feed helium gas, the startup stage and the steady stage. The results indicated that the concentration of <sup>3</sup>He separated in the steady stage decreases by two orders of magnitude, and the separation effect of the startup stage is inferior to that of the steady stage. Additionally, a detailed analysis of <sup>3</sup>He diffusion and <sup>4</sup>He superfluid flow is presented, along with potential advancements in helium isotope separation cryostat that could benefit future industrial applications.</div></div>","PeriodicalId":10812,"journal":{"name":"Cryogenics","volume":"145 ","pages":"Article 103992"},"PeriodicalIF":1.8,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142759431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Capacitance-based mass flow rate measurement of two-phase hydrogen in a 0.5 in. tube 基于电容的 0.5 英寸管内两相氢气质量流量测量仪

IF 1.8 3区工程技术

Cryogenics Pub Date : 2024-11-12 DOI: 10.1016/j.cryogenics.2024.103983

Benjamin Straiton , Matthew Charleston , Qussai Marashdeh , Jonathan Harrison , Matthew Reppa

{"title":"Capacitance-based mass flow rate measurement of two-phase hydrogen in a 0.5 in. tube","authors":"Benjamin Straiton , Matthew Charleston , Qussai Marashdeh , Jonathan Harrison , Matthew Reppa","doi":"10.1016/j.cryogenics.2024.103983","DOIUrl":"10.1016/j.cryogenics.2024.103983","url":null,"abstract":"<div><div>Mass flow rate is a critical measurement parameter when designing cryogenic hydrogen fluid systems. It is important in custody transfer applications for calculating financial obligations, fundamental fluid property research/modeling, and fluid system design applications to optimize chill down performance, maintain thermal equilibriums, and provide feedback control for pumps and valves. However, due to the large temperature differential between cryogenic fluids and the environment, there is often multiphase flow during system chilldown and steady state operation. Current available cryogenic flow measurement techniques are not equipped to deal with the complex multiphase flow inherent in cryogenic fluid systems, resulting in significant measurement errors. This mass flow measurement inaccuracy can cause financial loss, system instability, and even component failure, resulting in a strong market demand for a multiphase cryogenic mass flow meter to optimize and control sophisticated and costly cryogenic systems. This paper presents a solution in the form of a novel capacitance-based technique for measuring the multiphase mass flow rate of cryogenic hydrogen in a terrestrial environment. The device was calibrated and tested on a ½” tube multiphase hydrogen flow loop at a cryogenic hydrogen test facility. An error of ± 2 % full scale was achieved across a range of flow conditions, including transient and steady states.</div></div>","PeriodicalId":10812,"journal":{"name":"Cryogenics","volume":"144 ","pages":"Article 103983"},"PeriodicalIF":1.8,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142659361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation of the performance of oil-free linear compressor with magnetic resonance spring for pulse tube cryocooler 用于脉冲管低温冷却器的带磁共振弹簧的无油线性压缩机性能研究

IF 1.8 3区工程技术

Cryogenics Pub Date : 2024-11-09 DOI: 10.1016/j.cryogenics.2024.103982

Mingsheng Tang , Zhouhang Hu , Liubiao Chen , Yongheng Wu , Jianhua Xiao , Qingqing Yuan , Huiming Zou

{"title":"Investigation of the performance of oil-free linear compressor with magnetic resonance spring for pulse tube cryocooler","authors":"Mingsheng Tang , Zhouhang Hu , Liubiao Chen , Yongheng Wu , Jianhua Xiao , Qingqing Yuan , Huiming Zou","doi":"10.1016/j.cryogenics.2024.103982","DOIUrl":"10.1016/j.cryogenics.2024.103982","url":null,"abstract":"<div><div>This study proposes a new type of oil-free linear compressor with a magnetic resonance spring, which uses a magnetic resonance spring to provide restoring force and adopts gas-lubricated bearings to provide support force for the piston. The frequency characteristics of the compressor, including magnetic spring stiffness, gas spring stiffness, and resonance frequency, are studied through experiments and theoretical analysis. The magnetic spring stiffness is 31403.31 N/m of the design compressor. Hooke’s law and Fourier decomposition are employed for the gas spring stiffness measuring the compression pressure gauged. Meanwhile, the gas spring stiffness is also obtained from the amplitude-frequency characteristic of the compressor by the back stepping technique with an electric parameter frequency scan. The experimental results demonstrate that the three measurement methods have good consistency in measuring the gas spring stiffness. The equivalent gas spring stiffness measured using the three methods and theoretical model are 72600.92 N/m, 71275.84 N/m, 71967.15 N/m, and 71929.25 N/m at 3 MPa charged pressure measured respectively. In addition, the refrigeration performance of the pulse tube cryocooler driven by the compressor is tested and the lowest temperature obtained in the cold end is 46.3 K under different charge pressure. Furthermore, an optimal frequency exists that enhances the refrigeration performance of the pulse tube cryocooler, and this optimal frequency remains constant regardless of changes in the charge pressure.</div></div>","PeriodicalId":10812,"journal":{"name":"Cryogenics","volume":"144 ","pages":"Article 103982"},"PeriodicalIF":1.8,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142659359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis and Verification of cooling structure of superconducting motors for electrical aircraft propulsion 飞机电力推进用超导电机冷却结构的分析与验证

IF 1.8 3区工程技术

Cryogenics Pub Date : 2024-11-07 DOI: 10.1016/j.cryogenics.2024.103980

Enze Ma , Yulong Li , Yuan Gao

{"title":"Analysis and Verification of cooling structure of superconducting motors for electrical aircraft propulsion","authors":"Enze Ma , Yulong Li , Yuan Gao","doi":"10.1016/j.cryogenics.2024.103980","DOIUrl":"10.1016/j.cryogenics.2024.103980","url":null,"abstract":"<div><div>The hydrogen-powered aviation hybrid technology is one of the important directions of the development of electrical aircraft propulsion. Superconducting motors (SCMs) are the core components of a hydrogen-powered aircraft due to their high power-to-weight ratio. Among SCMs, partial SCMs with superconducting armature windings and permanent magnets (SC-PMMs) are the research front and hotspots. This study focuses on the key issue of cooling the superconducting (SC) coils of SC-PMMs. The advantages and disadvantages of three cooling structures, namely core conduction cooling, coil immersion cooling, and core and coil immersion cooling, are compared. The temperature of the SC coils in different cooling structures is simulated and analyzed in detail. The obtained results show that the temperature of the coils in the core and coil immersion cooling structure is not much different from that in the coil immersion cooling structure, with a temperature difference of about 1.5 K only. However, the implementation of the core and coil immersion cooling structure is much easier. Therefore, an SC-PMM prototype is developed using it as the cooling structure, and the temperature change in the prototype under different operating conditions is investigated experimentally. The obtained results show that the final stable temperature during the cooling process is 76.8 K, and the coil on the top is more likely to quench than that at the bottom. The maximum frequency and maximum current at which the prototype can operate stably for a long time are 200 Hz and 49 A, respectively. This study verifies the effectiveness of the core and coil immersion cooling structure, obtains the quench prone area in SC-PMMs, and lays the foundation for the development of high-performance and highly reliable SCMs.</div></div>","PeriodicalId":10812,"journal":{"name":"Cryogenics","volume":"144 ","pages":"Article 103980"},"PeriodicalIF":1.8,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142659405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of different core diameters on the current-carrying performance of CORC cables with REBCO multi-filamentary tapes 不同线芯直径对带有 REBCO 多丝带的 CORC 电缆载流性能的影响

IF 1.8 3区工程技术

Cryogenics Pub Date : 2024-11-07 DOI: 10.1016/j.cryogenics.2024.103981

Zuoguang Li , Zhan Zhang , Jiulong Zhang , Yuhu Bu , Donghu Wang , Guanyu Xiao , Huan Jin , Jinggang Qin , Chao Zhou

{"title":"Effect of different core diameters on the current-carrying performance of CORC cables with REBCO multi-filamentary tapes","authors":"Zuoguang Li , Zhan Zhang , Jiulong Zhang , Yuhu Bu , Donghu Wang , Guanyu Xiao , Huan Jin , Jinggang Qin , Chao Zhou","doi":"10.1016/j.cryogenics.2024.103981","DOIUrl":"10.1016/j.cryogenics.2024.103981","url":null,"abstract":"<div><div>The second generation of high temperature superconductivity (HTS) is one of the candidate materials for future superconducting cables (such as CORC), CICC conductors and high field magnets due to its high current carrying performance and excellent mechanical strength. Currently, it has been demonstrated that the utilization of REBCO multi-filamentary tapes in the fabrication of CORC cables can further reduce AC losses. This study involved the preparation of various types of REBCO multi-filamentary tapes through reel-to-reel ultraviolet picosecond laser cutting technology, as well as the manual winding of multiple single-layer CORC cable samples. This work focused on the impact of core diameter on the current-carrying performance of REBCO multi-filamentary tapes under self-field conditions at 77 K. The results indicate that the critical current (<em>I<sub>C</sub></em>) of REBCO multi-filamentary tapes decreases as the core diameter decreases. Furthermore, the decrease in <em>I<sub>C</sub></em> becomes more significant with an increasing number of cores. When the cable core diameter is 4.6 mm, the critical current of the 3-filament tape is 180.49 A with an <em>n</em>-value of 24.84, which is only a 3.1 % recession compared to the critical current of the commercialized tape. The conclusion of this paper will provide a certain data reference for the subsequent selection of CORC cable core size prepared by REBCO multi-filamentary tapes.</div></div>","PeriodicalId":10812,"journal":{"name":"Cryogenics","volume":"144 ","pages":"Article 103981"},"PeriodicalIF":1.8,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142659360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0