Details
| Original language | English |
|---|---|
| Pages (from-to) | 213-222 |
| Number of pages | 10 |
| Journal | Energy Harvesting and Systems |
| Volume | 3 |
| Issue number | 3 |
| Early online date | 5 Apr 2016 |
| Publication status | Published - 1 Aug 2016 |
Abstract
A thermoelectric generator couples an entropy current with an electrical current in a way, that thermal energy is transformed to electrical energy. Hereby the thermoelectric energy conversion can be described in terms of fluxes of entropy and electric charge at locally different temperature and electric potential. Crucial for the function of a thermoelectric generator is the sign and strength of the coupling between the entropy current and the electrical current in the thermoelectric materials. For high-temperature application, tin-doped indium oxide (In1.95Sn0.05O3) and misfit-layered calcium cobalt oxide (Ca3Co4O9) ceramics were used as n- and p-type legs. The n-type material reaches a power factor of 6.8μW·cm-1·K-2 at 1,073 K and a figure of merit ZT of 0.07. The p-type material reaches 1.23μW·cm-1·K-2 and a figure of merit ZT of 0.21 at 1,073 K. A thermoelectric generator consisting of ten legs was characterized for different invested temperatures. It delivers 4.8 mW maximum power output and a electrical power density of 2.13mW×cm-2 when the hot side is at 1,073 K and a temperature difference of 113 K is applied.
Keywords
- Thermoelectric power generation, Module, Oxide Materials, Ca3Co4O9, In2-xSnxO3, In Sn O, Ca Co O, Oxide materials
ASJC Scopus subject areas
- Energy(all)
- Energy Engineering and Power Technology
- Engineering(all)
- Electrical and Electronic Engineering
- Chemistry(all)
- Electrochemistry
- Energy(all)
- Renewable Energy, Sustainability and the Environment
Sustainable Development Goals
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In: Energy Harvesting and Systems, Vol. 3, No. 3, 01.08.2016, p. 213-222.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Oxide-Based Thermoelectric Generator for High-Temperature Application Using p-Type Ca3Co4O9 and n-Type In1.95Sn0.05O3 Legs
AU - Bittner, Michael
AU - Geppert, Benjamin
AU - Kanas, Nikola
AU - Singh, Sathya Prakash
AU - Wiik, Kjell
AU - Feldhoff, Armin
PY - 2016/8/1
Y1 - 2016/8/1
N2 - A thermoelectric generator couples an entropy current with an electrical current in a way, that thermal energy is transformed to electrical energy. Hereby the thermoelectric energy conversion can be described in terms of fluxes of entropy and electric charge at locally different temperature and electric potential. Crucial for the function of a thermoelectric generator is the sign and strength of the coupling between the entropy current and the electrical current in the thermoelectric materials. For high-temperature application, tin-doped indium oxide (In1.95Sn0.05O3) and misfit-layered calcium cobalt oxide (Ca3Co4O9) ceramics were used as n- and p-type legs. The n-type material reaches a power factor of 6.8μW·cm-1·K-2 at 1,073 K and a figure of merit ZT of 0.07. The p-type material reaches 1.23μW·cm-1·K-2 and a figure of merit ZT of 0.21 at 1,073 K. A thermoelectric generator consisting of ten legs was characterized for different invested temperatures. It delivers 4.8 mW maximum power output and a electrical power density of 2.13mW×cm-2 when the hot side is at 1,073 K and a temperature difference of 113 K is applied.
AB - A thermoelectric generator couples an entropy current with an electrical current in a way, that thermal energy is transformed to electrical energy. Hereby the thermoelectric energy conversion can be described in terms of fluxes of entropy and electric charge at locally different temperature and electric potential. Crucial for the function of a thermoelectric generator is the sign and strength of the coupling between the entropy current and the electrical current in the thermoelectric materials. For high-temperature application, tin-doped indium oxide (In1.95Sn0.05O3) and misfit-layered calcium cobalt oxide (Ca3Co4O9) ceramics were used as n- and p-type legs. The n-type material reaches a power factor of 6.8μW·cm-1·K-2 at 1,073 K and a figure of merit ZT of 0.07. The p-type material reaches 1.23μW·cm-1·K-2 and a figure of merit ZT of 0.21 at 1,073 K. A thermoelectric generator consisting of ten legs was characterized for different invested temperatures. It delivers 4.8 mW maximum power output and a electrical power density of 2.13mW×cm-2 when the hot side is at 1,073 K and a temperature difference of 113 K is applied.
KW - Thermoelectric power generation
KW - Module
KW - Oxide Materials
KW - Ca3Co4O9
KW - In2-xSnxO3
KW - In Sn O
KW - Ca Co O
KW - Oxide materials
UR - http://www.scopus.com/inward/record.url?scp=85052556064&partnerID=8YFLogxK
U2 - 10.1515/ehs-2016-0002
DO - 10.1515/ehs-2016-0002
M3 - Article
VL - 3
SP - 213
EP - 222
JO - Energy Harvesting and Systems
JF - Energy Harvesting and Systems
SN - 2329-8774
IS - 3
ER -