Numerical simulation for thermoelectric generator with optimized design for compact SOFC co-generation system
Year: 2013
Type: article
Abstract: As a means of improving the generating efficiency of the compact SOFC system with a rated AC power of 700 W, we introduced the heat exchanger which is integrated with CoSb3, SiGe thermoelectric materials, namely TEG-HEX, instead of the air preheater in the SOFC system simulation model. We investigated the influences of changes of materials thermoelectric properties and the thermoelectric element size in the TEG-HEX. The results of simulation indicated that using low thermal conductivity materials and high aspect ratio, in other words, long and thin, elements can withdraw larger temperature difference and larger TEG output power under realistic heat transfer conditions. To enhance the SOFC’s power generation efficiency, it is important to design the TEG-HEX using low thermal conductivity materials.
Authors: Takeshi Terayama, Susumu Nagata, Yohei Tanaka, Akihiko Momma, Tohru Kato, Masaru Kunii, Atsushi Yamamoto
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2055413221