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oai:zaguan.unizar.es:9862 2015-04-29
eng Vazeh Rasekh Modabberi, Shahed Arcega Solsona, Francisco Javier Thermal transport measurement techniques for the low dimension bulk thermoelectric materials http://zaguan.unizar.es/record/9862/files/TAZ-TFM-2012-1227.pdf Thermoelectric (TE) phenomena were extremely gain attention due to their directly conversion of heat energy into electrical one base on well-known Seebeck effect. Thus reason made these materials a promising way in order to harvest wasted energy and as a consequence helping the global warming The conversion efficiency of such materials is quantified by the dimensionless figure of merit ZT, TS2/ρ where S is the Seebeck coefficient (or thermopower), ρ the electrical resistivity, κ the thermal conductivity, and T is the absolute temperature. Therefore intense studies were carried out by various groups in order to obtain high performance thermoelectric modules. It is evident that the one pair of thermoelectric will not produce considerable electric energy for daily applications. The high volumes of work were done in order to minimize the dimensions of the TE pairs so the more pairs can be placed in the single modules. However, in order to obtaining the performance of these materials we should capable of measuring the ZT parameters, among them thermal conductivity. As for today there is not any commercial system capable of measuring the thermal conductivity of so low dimensions. In this work after the exploring the different methods and techniques, a simple but practical thermal conductivity measurement system and analysis for the low dimension bulk thermoelectric materials were successfully developed 2014-11-27
9862 20150429092412.0 TAZ-TFM-2012-1227 eng Vazeh Rasekh Modabberi, Shahed Thermal transport measurement techniques for the low dimension bulk thermoelectric materials Zaragoza Universidad de Zaragoza 2012 by-nc-sa Creative Commons 3.0 http://creativecommons.org/licenses/by-nc-sa/3.0/ Thermoelectric (TE) phenomena were extremely gain attention due to their directly conversion of heat energy into electrical one base on well-known Seebeck effect. Thus reason made these materials a promising way in order to harvest wasted energy and as a consequence helping the global warming The conversion efficiency of such materials is quantified by the dimensionless figure of merit ZT, TS2/ρ where S is the Seebeck coefficient (or thermopower), ρ the electrical resistivity, κ the thermal conductivity, and T is the absolute temperature. Therefore intense studies were carried out by various groups in order to obtain high performance thermoelectric modules. It is evident that the one pair of thermoelectric will not produce considerable electric energy for daily applications. The high volumes of work were done in order to minimize the dimensions of the TE pairs so the more pairs can be placed in the single modules. However, in order to obtaining the performance of these materials we should capable of measuring the ZT parameters, among them thermal conductivity. As for today there is not any commercial system capable of measuring the thermal conductivity of so low dimensions. In this work after the exploring the different methods and techniques, a simple but practical thermal conductivity measurement system and analysis for the low dimension bulk thermoelectric materials were successfully developed Máster en Energías Renovables y Eficiencia Energética Derechos regulados por licencia Creative Commons therma conductivity thermoelectric ceramics Arcega Solsona, Francisco Javier dir. Universidad de Zaragoza Ingeniería Eléctrica Ingeniería Eléctrica shrasekh@unizar.es 838037 http://zaguan.unizar.es/record/9862/files/TAZ-TFM-2012-1227.pdf Memoria (eng) Memoria (eng) oai:zaguan.unizar.es:9862 driver trabajos-fin-master TAZ TFM EINA URI http://zaguan.unizar.es/record/9862 SUPPORTED 0 MD5 http://zaguan.unizar.es/record/9862/files/TAZ-TFM-2012-1227.md5 0 image/x.djvu 6 http://djvu.sourceforge.net/abstract.html DJVU/6 Profile information Lizardtech Document Express Enterprise 5.1 0 URI http://zaguan.unizar.es/record/9862/files/TAZ-TFM-2012-1227.pdf disk Minimum View Print Visualization of DJVU requires specific software, like DjVu Browser Plugin URI http://creativecommons.org/licenses/by-nc/3.0 URI http://creativecommons.org/licenses/by-nc/3.0 license URI http://creativecommons.org/licenses/by-nc/3.0 You are free to adapt, copy, transmite or distribute the work under the following conditions: (1) You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work). (2) You may not use this work for commercial purposes (3) For any reuse or distribution, you must make clear to others the license terms of this work (4) Any of the above conditions can be waived if you get permission from the copyright holder (5) Nothing in this license impairs or restricts the author's moral rights This object is licensed under Creative Common Attribution-NonCommercial 3.0 (further details: http://creativecommons.org/licenses/by-nc/3.0/). Universidad de Zaragoza Automatizacion de Bibliotecas Edif. Matematicas, Pedro Cerbuna 12, 50009 Zaragoza auto.buz@unizar.es