A differential method for measuring cooling performance of a thermoelectric module

Title
A differential method for measuring cooling performance of a thermoelectric module
Authors
권범진백승협김성근현도빈김진상
Keywords
Thermoelectric module; Cooling power; Figure of merit; Differential method
Issue Date
2015-08
Publisher
Applied thermal engineering
Citation
VOL 87, 209-213
Abstract
An accurate and rapid characterization of a thermoelectric module (TEM) is critical to understand the problems in module design and fabrication. We describe an apparatus and a method that directly measure the cooling performance of a TEM such as current for maximum cooling (Imax), maximum cooling power (Qc,max), and maximum temperature difference (DTmax). The apparatus is designed based on a finite element model to ensure a simple heat flow measurement. We evaluate the module performance metrics based on differential measurement between the cooling powers with temperature difference across the module under transient conditions. The use of transient data reduces measurement time, and the use of a differential technique enables compensation of the thermal losses. The measured data fit well with conventional theoretical relations for the TEM performance metrics. We test a commercial TEM and validate the results using the Harman method.
URI
http://pubs.kist.re.kr/handle/201004/49799
ISSN
13594311
Appears in Collections:
KIST Publication > Article
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