気密ケース入り熱電変換モジュール技術(<特集>熱電発電技術の最新動向)
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概要
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An encapsulated thermoelectric (TE) module consists of a vacuum tight stainless steel container in which a SiGe or BiTe TE module is encapsulated. This situation enables maximum performance and durability because 1) the thermal expansion mismatch between the hot and cold sides of the container can be accommodated by a sliding sheet in the container, 2) the TE module inside is always kept in a vacuum environment, therefore no oxidation can occur, and 3) the difference in pressure between the inside and outside of the container reduces thermal contact resistance inside the container. This design strategy provides a high flux, direct conduction paths to the heat source and heat sink, and enables greater temperature gradient on the TE module itself as that of conventional one; therefore it can demonstrate greater power.
- 2013-05-20