Journal
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID
Volume 65, Issue -, Pages 103-110Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ijrefrig.2015.12.007
Keywords
Thermoelectric cooling; Constructal design; Trapezoid-type thermoelement; Optimization
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Funding
- National Natural Science Foundation of China (NSFC) [51276135]
- NSFC
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This paper aims to present a trapezoid-type two-stage Peltier couples (TTPC) for applications in two-stage thermoelectric cooling. By using the TTPC units without intermediate ceramic plates, the TTPC based thermoelectric module may reduce the interstage thermal resistance that could provide better performance. For the TTPC, optimum configuration analyses are performed using developed mathematical model. The simulation result indicates that the Peltier couple leg length allocation ratio between the cold stage and hot stage as well as the shape ratio of trapezoid-type Peltier couple leg at hot stage affect the maximum cooling capacity and coefficient of performance (COP) of TTPC. Moreover, there is an optimum configuration of the TTPC to achieve the optimal maximum cooling capacity and COP at given geometry parameters and operating conditions. The results obtained here may provide some guides for the optimal design and operation of practical the TTPC based thermoelectric module. (C) 2015 Elsevier Ltd and IIR. All rights reserved.
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