A two-stage cuboid-styled thermoelectric cooler with switched polarity

X. C. Xuan, K. C. Ng, C. Yap, H. T. Chua

Research output: Contribution to conferenceConference presentation/ephemerapeer-review

7 Citations (Scopus)


This paper introduces a two-stage cuboid-styled thermoelectric (TE) cooler, which is simply formed by linking two similar single-stage commercial TE modules serially in thermal cascade. Superior to a conventional two-stage pyramid-styled TE cooler, the cuboid-styled cooler has switched polarity, which means that the cooling rate and coefficient of performance (COP) can keep constant when its supplied electric currents are alternated. As an example, a single-stage TE module of MELCOR is chosen for performance comparison between single and two-stage coolers. Practical conditions are accounted for by considering the effect of thermal resistance between stages. The calculations demonstrate that the two-stage cuboid-styled cooler can attain higher temperature differences than those achieved by the single-stage module. Both COP and cooling flux are improved at large temperature difference.

Original languageEnglish
Number of pages4
Publication statusPublished - 1 Dec 2001
Externally publishedYes
Event20th International Conference on Thermoelectrics - Beijing, China
Duration: 8 Jun 200111 Jun 2001


Conference20th International Conference on Thermoelectrics
Abbreviated titleICT'01


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