EI、Scopus 收录
中文核心期刊
Wang Xueqiang, Ju Chengjian, Dui Guansuo. PERFORMANCE OF COLLINEAR THERMOELECTRIC GENERATOR CONSIDERING THE HEAT DISSIPATION IN THE SIDE SURFACE[J]. Chinese Journal of Theoretical and Applied Mechanics, 2019, 51(1): 192-197. doi: 10.6052/0459-1879-18-255
Citation: Wang Xueqiang, Ju Chengjian, Dui Guansuo. PERFORMANCE OF COLLINEAR THERMOELECTRIC GENERATOR CONSIDERING THE HEAT DISSIPATION IN THE SIDE SURFACE[J]. Chinese Journal of Theoretical and Applied Mechanics, 2019, 51(1): 192-197. doi: 10.6052/0459-1879-18-255

PERFORMANCE OF COLLINEAR THERMOELECTRIC GENERATOR CONSIDERING THE HEAT DISSIPATION IN THE SIDE SURFACE

doi: 10.6052/0459-1879-18-255
  • Publish Date: 2019-01-18
  • Thermoelectric material is an environment-friendly function material, which can~convert energy between heat and electricity. And it holds extensive~application~potentiality in power generation and refrigeration. The traditional thermoelectric generator is a $\pi $-type structure, which requires the length of the thermoelectric legs to be equal. In some cases, the structure is not conducive to the optimal design of the thermoelectric generator. Intense thermal stress and even stress~concentration will be induced in the thermoelectric generator due to high-temperature working condition, leading to shortening its working life. In addition, since the operating temperature of the thermoelectric generator is higher than ambient temperature, part of the heat will inevitably be dissipated to the environment, which will affect the thermoelectric performance and mechanical performance of the thermoelectric generator. Therefore, the heat dissipation cannot be neglected when analyzing this kind of problem. For these phenomena, in this work, a novel collinear-type thermoelectric generator model is proposed considering the heat dissipation in the side surface. And the legs of the proposed thermoelectric model can be optimized independently. Then, based on the finite element method, performance of collinear thermoelectric generator considering the heat dissipation in the side surface is simulated. And the thermoelectric performance and mechanical performance under the Dirichlet boundary condition is analyzed. Simultaneously, the temperature field, electric potential field and stress field in the thermoelectric generator are obtained. The influence of various convective heat transfer coefficient on thermoelectric performance and mechanical performance of the thermoelectric generator is investigated. The results demonstrate that thermal convection can decrease the energy conversion efficiency of the thermoelectric generator. When the convective heat transfer coefficient reaches 100 W/(m$^{2}\cdot$\textcelsius), the efficiency is 0.047 9 which is 28% lower than the conversion efficiency of 0.066 7 in adiabatic state. Though heat loss from the side surface is increased due to heat convection, thermal stress is reduced. In practical application, proper design and improvement of the thermal insulation system should be carried out to improve the efficiency of energy conversion.

     

  • loading
  • [1] Al-Nimr MA, Tashtoush BM, Khasawneh MA, et al.A hybrid concentrated solar thermal collector/thermo-electric generation system. Energy, 2017, 134: 1001-1012
    [2] Chen G.Theoretical efficiency of solar thermoelectric energy generators. Journal of Applied Physics, 2011, 109(10): 773-778
    [3] 贾磊, 陈则韶, 胡芃等. 导体温差发电器件的热力学分析. 中国科学技术大学学报, 2004, 34(6): 684-687
    [3] (Jia Lei, Chen Zeshao, Hu Peng, et al.Thermodynamic analysis of semiconductor thermoelectric generator. Journal of University of Science and Technology of China, 2004, 34(6): 684-687 (in Chinese))
    [4] Hadjistassou C, Kyriakides E, Georgiou J.Designing high efficiency segmented thermoelectric generators. Energy Conversion and Management, 2013, 66: 165-172
    [5] Kim S.Analysis and modeling of effective temperature differences and electrical parameters of thermoelectric generators. Applied Energy, 2013, 102(2): 1458-1463
    [6] 贾阳, 任德鹏. 温差发电器中热电材料物性的影响分析. 电源技术, 2008, 32(4): 252-256
    [6] (Jia Yang, Ren Depeng.Effect analysis for physics characteristic of thermo-electric materials in thermo-electric generator. Journal of Power Sources, 2008, 32(4): 252-256 (in Chinese))
    [7] Ju CJ, Dui GS, Zheng H, et al.Revisiting the temperature dependence in material performance and performance of thermoelectric materials. Energy, 2017, 124: 249-257
    [8] Wang BL.A finite element computational scheme for transient and nonlinear coupling thermoelectric fields and the associated thermal stresses in thermoelectric materials. Applied Thermal Engineering, 2017, 110: 136-143
    [9] 杜群贵, 邹杰慧, 陈水金等. 半导体热电转换单元发电性能的变物性计算模型. 华南理工大学学报, 2013, 41(4): 47-53
    [9] (Du Qungui, Zou Jiehui, Chen Jinshui, et al.Calculation model of semiconductor thermoelectric generator unit based on variable material properties. Joumal of South China University of Technology, 2013, 41(4): 47-53 (in Chinese))
    [10] Liu ZC, Zhu SP, Ge Y, et al.Geometry optimization of two-stage thermoelectric generators using simplified conjugate-gradient method. Applied Energy, 2017, 190: 540-552
    [11] Ali H, Sahin AZ, Yilbas BS.Thermodynamic analysis of a thermoelectric power generator in relation to geometric configuration device pins. Energy Conversion and Management, 2014, 78: 634-640
    [12] Al-Merbati AS, Yilbas BS, Sahin AZ.Thermodynamics and thermal stress analysis of thermoelectric power generator: Influence of pin geometry on device performance. Applied Thermal Engineering, 2013, 50: 683-692
    [13] Sahin AZ, Yilbas BS.The thermoelement as thermoelectric power generator: Effect of leg geometry on the efficiency and power generation. Energy Conversion Management, 2013, 65: 26-32
    [14] Kim H S, Itoh T, Iida T, et al.Design of linear shaped thermoelectric generator and self-integration using shape memory alloy. Materials Science and Engineering: B, 2014, 183(1): 61-68
    [15] Jia XD, Gao YW.Optimal design of a novel thermoelectric generator with linear-shaped structure under different operating temperature conditions. Applied Thermal Engineering, 2015, 78: 533-542
    [16] Jia XD, Wang YJ, Gao YW.Numerical simulation of thermoelectric performance of linear-shaped thermoelectric generators under transient heat supply. Energy, 2017, 130: 276-285
    [17] Yilbas BS, Akhtar SS, Sahin AZ.Thermal and stress analyses in thermoelectric generator with tapered and rectangular pin configurations. Energy, 2016, 114: 52-63
    [18] 王长宏, 李娜, 林涛等. 半导体~P-N 型温差发电器件热电性能研究. 功能材料, 2016, 47(12): 12147-12151
    [18] (Wang Changhong, Li Na, Lin Tao, et al.Research on thermoelectric properties of semiconductor P-N type thermoelectric power generation device. Functional Materials, 2016, 47(12): 12147-12151 (in Chinese))
    [19] 张克实, 黄世鸿, 刘贵龙等. 纯铜后继屈服面的测试与晶体塑性模型模拟. 力学学报, 2017, 49(4): 870-879
    [19] (Zhang Keshi, Huang Shihong, Liu Guilong, et al.Measuring subsequent yield surface of pure copper by crystal plasticity simulation. Chinese Journal of Theoretical and Applied Mechanics, 2017, 49(4): 870-879 (in Chinese))
    [20] Drink E, Martin J, Markus B, et al.Multiphysics simulation of thermoelectric systems for comparison with experimental device performance. Journal of Electronic Materials, 2009, 38(7): 1456-146
    [21] 龙凯, 王选, 韩丹. 基于多相材料的稳态热传导结构轻量化设计. 力学学报, 2017, 49(2): 359-366
    [21] (Long Kai, Wang Xuan, Han Dan.Structural light design for steady heat conduction using multi-material. Chinese Journal of Theoretical and Applied Mechanics, 2017, 49(2): 359-366 (in Chinese))
    [22] 章鹏, 杜成斌, 江守燕. 比例边界有限元法求解裂纹面接触问题. 力学学报, 2017, 49(6): 1335-1347
    [22] (Zhang Peng, Du Chengbin, Jiang Shouyan.Crack face contact problem analysis using the scaled boundary finite element method. Chinese Journal of Theoretical and Applied Mechanics, 2017, 49(6): 1335-1347 (in Chinese)
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views (858) PDF downloads(153) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return