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TiO2−X based thermoelectric generators enabled by additive and layered manufacturing

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  • Lee, Hwasoo
  • Chidambaram Seshadri, Ramachandran
  • Han, Su Jung
  • Sampath, Sanjay

Abstract

Traditional thermoelectric modules are acquired as separate components and then integrated by mechanical attachment into the engineering systems. There is, however, an interest and opportunity to manufacture thermoelectric device and basic electronics directly onto engineering structures. Recent studies have shown that plasma spray synthesized sub-stoichiometric titanium oxide (TiO2−x) deposits show reasonable thermoelectric figure-of-merit, are capable of operating at relatively high temperatures (∼500°C), and can be easily and cost effectively deposited onto both planar and cylindrical substrates over large areas with the capability to produce patterned and multilayer assemblies to optimize the power harvesting. This study demonstrates the fabrication and performance of such thermoelectric generators based on n-type TiO2−x and Ni as the surrogate p-type and interconnect structures embedded within ceramic deposits. Up to 72 thermocouple modules were prepared incorporating both series and parallel connections to augment the performance resulting in a max efficiency of 0.85% for the couple and electric power of 2.43mW at temperature of 723K. Preliminary experiments were conducted with Li:Co3O4 as the p-type material with significant performance improvement. The methodologies described in this paper represents a potential pathway for large scale synthesis and fabrication of thermoelectric system directly in waste heat systems over large areas.

Suggested Citation

  • Lee, Hwasoo & Chidambaram Seshadri, Ramachandran & Han, Su Jung & Sampath, Sanjay, 2017. "TiO2−X based thermoelectric generators enabled by additive and layered manufacturing," Applied Energy, Elsevier, vol. 192(C), pages 24-32.
  • Handle: RePEc:eee:appene:v:192:y:2017:i:c:p:24-32
    DOI: 10.1016/j.apenergy.2017.02.001
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    References listed on IDEAS

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    1. Owoyele, Opeoluwa & Ferguson, Scott & O’Connor, Brendan T., 2015. "Performance analysis of a thermoelectric cooler with a corrugated architecture," Applied Energy, Elsevier, vol. 147(C), pages 184-191.
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    Cited by:

    1. Tu, Yubin & Zhu, Wei & Lu, Tianqi & Deng, Yuan, 2017. "A novel thermoelectric harvester based on high-performance phase change material for space application," Applied Energy, Elsevier, vol. 206(C), pages 1194-1202.
    2. Ssennoga Twaha & Jie Zhu & Luqman Maraaba & Kuo Huang & Bo Li & Yuying Yan, 2017. "Maximum Power Point Tracking Control of a Thermoelectric Generation System Using the Extremum Seeking Control Method," Energies, MDPI, vol. 10(12), pages 1-18, December.
    3. Manuela Castañeda & Elkin I. Gutiérrez-Velásquez & Claudio E. Aguilar & Sergio Neves Monteiro & Andrés A. Amell & Henry A. Colorado, 2022. "Sustainability and Circular Economy Perspectives of Materials for Thermoelectric Modules," Sustainability, MDPI, vol. 14(10), pages 1-19, May.
    4. Elsheikh, A.H. & Sharshir, S.W. & Mostafa, Mohamed E. & Essa, F.A. & Ahmed Ali, Mohamed Kamal, 2018. "Applications of nanofluids in solar energy: A review of recent advances," Renewable and Sustainable Energy Reviews, Elsevier, vol. 82(P3), pages 3483-3502.

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