Analysis of Fluid-Solid Coupling Radial Heat Transfer Characteristics in a Normal Hexagonal Bundle Regenerator under Oscillating Flow

被引:0
|
作者
Wang, Yajuan [1 ,2 ]
Zhang, Jun'an [1 ]
Lu, Zhiwei [1 ]
Liu, Bo [1 ]
Dong, Hao [1 ]
机构
[1] Xian Technol Univ, Sch Mech & Elect Engn, Xian 710021, Peoples R China
[2] Shaanxi Energy Inst, Coll Coal & Chem Ind, Xianyang 712000, Peoples R China
关键词
regenerator; oscillatory flow; radial direction; heat transfer; fluid-solid coupling; analytical solution; PERFORMANCE;
D O I
10.3390/en16186411
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
The main purpose of this paper is to analyze the heat transfer mechanism of a new type of regenerator with a low temperature difference and low current resistance under oscillatory flow at room temperature. Taking the single tube of the regenerator as the research object, the exact analytical solution of the radial heat transfer characteristics of the regenerator is obtained by studying its analytical model. The factors affecting the heat transfer characteristics are analyzed, and then the regenerator is optimized to improve the performance and efficiency of the regenerator system. In this study, we systematically analyzed the radial heat transfer characteristics of a regenerator under isochoric process conditions. A closed-system physical model of the incompressible isochoric process under oscillating flow was established. Then, the radial analytical solutions of pressure fluctuation, fluid velocity, fluid-solid temperature, and heat were derived in the complex number field. Furthermore, the fluid velocity, fluid-solid coupling wall temperature, heat, and equivalent heat transfer coefficient were assessed. Furthermore, the influences of frequency, inner diameter R1 of the regenerator, and different working medium and materials on the above parameters were discussed. It was found that the analysis and evaluation of fluid velocity, fluid-structure coupling wall temperature, heat, and equivalent heat transfer coefficient are helpful in understanding the dynamic characteristics of radial heat transfer in a regenerator system. Through the study of radial heat transfer under oscillating flow, it was found that the working medium, frequency, inner diameter of the regenerator, and material quality of the regenerator are helpful for the design optimization of the regenerator. Furthermore, our investigations established that the variation law of wall fluid-solid coupling temperature amplitude could be divided into three parts: the unidirectional flow part; the low-frequency part, where the temperature amplitude falls rapidly with increasing frequency; and the high-frequency part, where the temperature amplitude increases with the frequency. In addition, the variation of radial heat transfer of the fluid-solid coupling surface is similar to the changes in the temperature amplitude. We also discovered that the equivalent heat transfer coefficient of the fluid-solid surface is related to thermal conductivity of the material. Specifically, larger thermal conductivity values result in greater equivalent heat transfer coefficients. Based on the research into the radial heat transfer characteristics, the new regenerator has great application potential in the Stirling air conditioning system at room temperature.
引用
收藏
页数:27
相关论文
共 50 条
  • [31] Topology Optimization Design of Micro-Channel Heat Sink by Considering the Coupling of Fluid-Solid and Heat Transfer
    Wang, Yue
    Wang, Jiahao
    Liu, Xiaomin
    [J]. ENERGIES, 2022, 15 (23)
  • [32] FLUID FLOW AND HEAT TRANSFER CHARACTERISTICS OF MICRO OSCILLATING HEAT PIPES WITH AND WITHOUT EXPANDING CHANNELS
    Sun, Qin
    Qu, Jian
    Yuan, Jianping
    Wang, Hai
    Thompson, Scott M.
    [J]. PROCEEDINGS OF THE ASME 6TH INTERNATIONAL CONFERENCE ON MICRO/NANOSCALE HEAT AND MASS TRANSFER, 2019, 2019,
  • [33] Temperature Effect of Concrete Hydration Heat under Atmospheric Wind Based on Fluid-Solid Coupling
    Moyan Zhang
    Hong Xiao
    Meng Wang
    Mahantesh M. Nadakatti
    Peng Chen
    [J]. KSCE Journal of Civil Engineering, 2022, 26 : 1177 - 1187
  • [34] Numerical study on flow and heat transfer characteristics of liquid lithium in hexagonal rod bundle channels
    Wang, Yue
    Du, Qiaochen
    Zhang, Wenchao
    Cai, Benan
    Cai, Weihua
    [J]. ANNALS OF NUCLEAR ENERGY, 2024, 208
  • [35] Study on the flow and heat transfer characteristics of liquid sodium in a hexagonal 7-rod bundle
    He, Shaopeng
    Wang, Mingjun
    Hou, Yandong
    Tian, Wenxi
    Qiu, Suizheng
    Su, G. H.
    [J]. NUCLEAR ENGINEERING AND DESIGN, 2022, 393
  • [36] Temperature Effect of Concrete Hydration Heat under Atmospheric Wind Based on Fluid-Solid Coupling
    Zhang, Moyan
    Xiao, Hong
    Wang, Meng
    Nadakatti, Mahantesh M.
    Chen, Peng
    [J]. KSCE JOURNAL OF CIVIL ENGINEERING, 2022, 26 (03) : 1177 - 1187
  • [37] Fluid-Solid Coupling Analysis on the 2-Dimentional Flow Field of Internal Mixer
    Zhao HaiXia
    Bian HuiGuang
    [J]. ADVANCED POLYMER SCIENCE AND ENGINEERING, 2011, 221 : 592 - +
  • [38] A finite element numerical analysis for a fluid-solid coupling flow in a deforming porous medium
    Dong, PC
    He, SL
    Lang, ZX
    [J]. GEOECOLOGY AND COMPUTERS, 2000, : 477 - 481
  • [39] Analysis on the Free Vibration Characteristics of Gate Rubber Seal Considering Fluid-solid Coupling
    Xiong Run'e
    Yan Genhua
    [J]. ADVANCES IN HYDRAULIC PHYSICAL MODELING AND FIELD INVESTMENT AND INVESTIGATION, 2010, : 98 - 105
  • [40] Analysis of fluid-solid coupling characteristics of tripod sliding universal coupling based on cavitation and thermal effects
    Yang, Fuqin
    Jiang, Jingwei
    Li, Dong
    Sun, Linlin
    [J]. ADVANCES IN MECHANICAL ENGINEERING, 2020, 12 (05)