محبوبترین نویسندگان :
نویسندگان مقالات پربازدید :
مجله مواد الکترونیکی 2013
جزئیات رویداد
همایش ، رویداد ، ژورنال
اینستاگرام تی پی بین

  • design and numerical evaluation of cascade-type thermoelectric modules

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    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 1042
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     thermoelectric (te) generation performance can be enhanced by stacking several te modules (so-called cascade-type modules). this work presents a design method to optimize the cascade structure for maximum power output. a one-dimensional model was first analyzed to optimize the te element dimensions by considering the heat balance including conductive heat transfer, peltier heat, and joule heat, assuming constant temperatures at all te junctions. the number of p–n pairs was successively optimized to obtain maximum power. the power output increased by 1.24 times, from 12.7 w in a conventional model to 15.7 w in the optimized model. secondly, a two-dimensional numerical calculation based on the finite-volume method was used to evaluate the temperature and electric potential distributions. voltage–current characteristics were calculated, the maximum power output was evaluated, and the efficiencies of two possible models were compared to select the optimal design. the one-dimensional analytical approach is effective for a rough design, and multidimensional numerical calculation is effective for evaluating the dimensions and performance of cascade-type te modules in detail.

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