000121369 001__ 121369
000121369 005__ 20240319081015.0
000121369 0247_ $$2doi$$a10.1016/j.energy.2021.121771
000121369 0248_ $$2sideral$$a131725
000121369 037__ $$aART-2022-131725
000121369 041__ $$aeng
000121369 100__ $$aWang, Xue
000121369 245__ $$aU-type unileg thermoelectric module: A novel structure for high-temperature application with long lifespan
000121369 260__ $$c2022
000121369 5060_ $$aAccess copy available to the general public$$fUnrestricted
000121369 5203_ $$aStrong thermal stress caused by high temperature and difference of thermal expansion coefficient (CTE) will negatively influence the lifespan of the thermoelectric module. In this work, a new high-temperature CaMnO3-based U-type unileg thermoelectric module, combining a unileg structure with pn-junction, is proposed and investigated. The novel design avoids the device failure due to different CTEs and high temperature gradients. As a result, the maximal thermal stress (σmax,TEM) of 3.31 GPa and fatigue life of 41686 cycles are 46 % and 132 % of those of traditional modules at 6 W and 300 K, respectively. To further relieve stress concentration, the effect of rounded corners (ru, rl), Ag layer thickness (HAg) and length of right legs (LR), have been studied. It has been found that larger ru, and rl are suitable to relieve the local stress concentration, and the lowest σmax,TEM and highest power (Pmax) are achieved at (ru,rl)=(0.1,0) and (0,0.5). Moreover, larger LR and HA are beneficial for mechanical properties by decreasing the peak stress and dispersing the high thermal stress regions, while module performance is improved at lower LR and HAg. Results obtained from this U-type unileg thermoelectric module should influence and guide the design and optimization of high-temperature thermoelectric generators.
000121369 536__ $$9info:eu-repo/grantAgreement/ES/DGA/T54-17R$$9info:eu-repo/grantAgreement/ES/MINECO-FEDER/MAT2017-82183-C3-1-R
000121369 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000121369 590__ $$a8.9$$b2022
000121369 592__ $$a1.989$$b2022
000121369 591__ $$aTHERMODYNAMICS$$b3 / 63 = 0.048$$c2022$$dQ1$$eT1
000121369 591__ $$aENERGY & FUELS$$b23 / 119 = 0.193$$c2022$$dQ1$$eT1
000121369 593__ $$aBuilding and Construction$$c2022$$dQ1
000121369 593__ $$aCivil and Structural Engineering$$c2022$$dQ1
000121369 593__ $$aElectrical and Electronic Engineering$$c2022$$dQ1
000121369 593__ $$aEnergy (miscellaneous)$$c2022$$dQ1
000121369 593__ $$aEnergy Engineering and Power Technology$$c2022$$dQ1
000121369 593__ $$aRenewable Energy, Sustainability and the Environment$$c2022$$dQ1
000121369 593__ $$aIndustrial and Manufacturing Engineering$$c2022$$dQ1
000121369 593__ $$aManagement, Monitoring, Policy and Law$$c2022$$dQ1
000121369 593__ $$aMechanical Engineering$$c2022$$dQ1
000121369 593__ $$aModeling and Simulation$$c2022$$dQ1
000121369 593__ $$aPollution$$c2022$$dQ1
000121369 593__ $$aFuel Technology$$c2022$$dQ1
000121369 594__ $$a14.9$$b2022
000121369 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000121369 700__ $$aWang, Hongchao
000121369 700__ $$aSu, Wenbing
000121369 700__ $$aChen, Tingting
000121369 700__ $$aTan, Chang
000121369 700__ $$0(orcid)0000-0002-0794-3998$$aMadre, María A.$$uUniversidad de Zaragoza
000121369 700__ $$0(orcid)0000-0001-7056-0546$$aSotelo, Andres$$uUniversidad de Zaragoza
000121369 700__ $$aWang, Chunlei
000121369 7102_ $$15001$$2065$$aUniversidad de Zaragoza$$bDpto. Ciencia Tecnol.Mater.Fl.$$cÁrea Cienc.Mater. Ingen.Metal.
000121369 773__ $$g238, Parte B (2022), 121771 [15 pp.]$$pEnergy$$tEnergy$$x0360-5442
000121369 8564_ $$s2427450$$uhttps://zaguan.unizar.es/record/121369/files/texto_completo.pdf$$yPostprint
000121369 8564_ $$s1684903$$uhttps://zaguan.unizar.es/record/121369/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000121369 909CO $$ooai:zaguan.unizar.es:121369$$particulos$$pdriver
000121369 951__ $$a2024-03-18-15:33:51
000121369 980__ $$aARTICLE