Bjørk, Rasmus

Online Research Database In Technology

                       General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.  • Users may download and print one copy of any publication from the public portal for the purpose of private study or research. • You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal   If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim.     Downloaded from orbit.dtu.dk on: Nov 08, 2017The universal influence of contact resistance on TEG efficiencyBjørk, RasmusPublished in:Book of Abstracts. International Conference on Thermoelectrics (ICT) 2015Publication date:2015Document VersionPublisher's PDF, also known as Version of recordLink back to DTU OrbitCitation (APA):Bjørk, R. (2015). The universal influence of contact resistance on TEG efficiency. In Book of Abstracts.International Conference on Thermoelectrics (ICT) 2015 Oral Session  Thursday, July 2nd  Back to Subsection 15C 15C.1  The universal influence of contact resistance on TEG efficiency  R. Bjørk1  1 Department of Energy Conversion and Storage, Technical University of Denmark - DTU, Frederiksborgvej 399, DK-4000, Roskilde, Denmark *e-mail of presenting author: rabj@dtu.dk  We present an investigation of the influence of both electrical and thermal contact re-sistance on the efficiency of a segmented thermoelectric generator [1]. For the study, 12 different segmented p-legs and 12 different segmented n-legs are considered, using 8 differ-ent p-type and 8 different n-type thermoelectric materials. For all systems, a universal influ-ence of both the electrical and thermal contact resistance is observed on the leg's efficiency.  The universal behaviour allows the maximum tolerable contact resistance for a segmented system to be found, i.e. the resistance at which a leg of only the high temperature thermo-electric material has equal efficiency as a segmented leg with contact resistance at the inter-face, as shown in Fig. 1.  Figure 35: The maximum tolerable pure electrical or thermal contact re-sistance for a segmented TE leg as function of the gain in efficiency due to the segmentation.             The author would like to thank the European Commission for sponsoring the NanoCaTe (FP7-NMP Project No. 604647) project.   References: [1] R. Bjørk, The universal influence of contact resistance on the efficiency of a thermoelectric genera-tor, Accepted Journal of Electronic Materials (2015) 

The universal influence of contact resistance on TEG efficiency

http://orbit.dtu.dk/ws/files/118944108/The_universal_influence.pdf

The universal influence of contact resistance on TEG efficiency

Abstract

Similar works

Full text

Available Versions

Online Research Database In Technology