中国物理B ›› 2020, Vol. 29 ›› Issue (8): 84401-084401.doi: 10.1088/1674-1056/ab9437

• SPECIAL TOPIC—Ultracold atom and its application in precision measurement • 上一篇    下一篇

Establishment and evaluation of a co-effect structure with thermal concentration-rotation function in transient regime

Yi-yi Li(李依依), Hao-chun Zhang(张昊春)   

  1. School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
  • 收稿日期:2020-03-18 修回日期:2020-04-17 出版日期:2020-08-05 发布日期:2020-08-05
  • 通讯作者: Hao-chun Zhang E-mail:hczhang@hit.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 51776050 and 51536001).

Establishment and evaluation of a co-effect structure with thermal concentration-rotation function in transient regime

Yi-yi Li(李依依), Hao-chun Zhang(张昊春)   

  1. School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
  • Received:2020-03-18 Revised:2020-04-17 Online:2020-08-05 Published:2020-08-05
  • Contact: Hao-chun Zhang E-mail:hczhang@hit.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 51776050 and 51536001).

摘要: The advanced heat flux manipulating structures inspired by TO-based spatial mapping have aroused wide interests owing to huge potential in high-efficient thermal energy utilization. However, most researches are limited to the realization of single function in one specific structure and appropriate evaluation of the energy transfer process is relatively lacking. In this work, based on time-dependent two-dimensional heat conduction equation, a co-effect structure capable of accomplishing concentration and rotation functions simultaneously is established and validated by finite element simulations compared with the conventional single concentrator and singe rotator. In addition, from the perspective of thermodynamics, the transformed local entropy production rate and total entropy production are theoretically derived and applied to evaluate the quality of energy transfer processes. The proposed co-effect structure can help to explore other potential mass/flux manipulating devices and the evaluation method is valuable for the further manufacturing as well as optimization of these devices in engineering applications.

关键词: transformation thermodynamics, thermal concentration-rotation transformed entropy production, transient regime

Abstract: The advanced heat flux manipulating structures inspired by TO-based spatial mapping have aroused wide interests owing to huge potential in high-efficient thermal energy utilization. However, most researches are limited to the realization of single function in one specific structure and appropriate evaluation of the energy transfer process is relatively lacking. In this work, based on time-dependent two-dimensional heat conduction equation, a co-effect structure capable of accomplishing concentration and rotation functions simultaneously is established and validated by finite element simulations compared with the conventional single concentrator and singe rotator. In addition, from the perspective of thermodynamics, the transformed local entropy production rate and total entropy production are theoretically derived and applied to evaluate the quality of energy transfer processes. The proposed co-effect structure can help to explore other potential mass/flux manipulating devices and the evaluation method is valuable for the further manufacturing as well as optimization of these devices in engineering applications.

Key words: transformation thermodynamics, thermal concentration-rotation transformed entropy production, transient regime

中图分类号:  (Heat conduction)

  • 44.10.+i
44.05.+e (Analytical and numerical techniques)