Experimental investigation of the performance of a thermoelectric generator at various operating conditions

Thermoelectric generators (TEG) is the device that can directly convert heat into electricity by the Seebeck effect, which is fascinated for waste heat recovery. An experiment was setup to study the influence of heat flux through the thermoelectric module on the power output and efficiency of a commercial Bi2Te3-based thermoelectric modules. The experimental result indicated that the power output evidently increased with the increasing heat flux through the thermoelectric module (TEM), while the conversion efficiency increased significantly at first then the tendency became mild with the increasing heat flux for a given air flow velocity and flow temperature. The temperature differences across the thermoelectric module are almost identical with various air velocity, while the power output and efficiency increased with the increase of cooling flow velocity with a fixed heat flux through the TEM. The power output and efficiency almost linearly decreased with the increase of cooling flow temperature with a fixed heat flux through the TEM and a fixed cooling flow velocity. The maximum output power can be obtained by maximization heat flux without exceeding the upper temperature limit of thermoelectric module.

[1]  V. Zare,et al.  Employing thermoelectric generator for power generation enhancement in a Kalina cycle driven by low-grade geothermal energy , 2018 .

[2]  Ibrahim Dincer,et al.  Development, analysis and assessment of solar energy-based multigeneration system with thermoelectric generator , 2018 .

[3]  Shixue Wang,et al.  Experimental study on the influence of porous foam metal filled in the core flow region on the performance of thermoelectric generators , 2017 .

[4]  Yong Li,et al.  Heat transfer enhancement of a modularised thermoelectric power generator for passenger vehicles , 2017 .

[5]  Xun Liu,et al.  Numerical investigation on the performances of automotive thermoelectric generator employing metal foam , 2017 .

[6]  D. Astrain,et al.  Net thermoelectric power generation improvement through heat transfer optimization , 2017 .

[7]  Assmelash A. Negash,et al.  Experimental and numerical study of waste heat recovery characteristics of direct contact thermoelectric generator , 2017 .

[8]  C. Su,et al.  Effect of Cooling Units on the Performance of an Automotive Exhaust-Based Thermoelectric Generator , 2017, Journal of Electronic Materials.

[9]  Zhijia Yang,et al.  Comprehensive analysis of thermoelectric generation systems for automotive applications , 2017 .

[10]  Yu Li Lin,et al.  Power output and efficiency of a thermoelectric generator under temperature control , 2016 .

[11]  X. Y. Wang,et al.  Multi-objective optimization of heat exchanger in an automotive exhaust thermoelectric generator , 2016 .

[12]  Yousef S.H. Najjar,et al.  Heat transfer and performance analysis of thermoelectric stoves , 2016 .

[13]  Wei-Hsin Chen,et al.  Performance analysis and optimum operation of a thermoelectric generator by Taguchi method , 2015 .

[14]  Takeshi Kajihara,et al.  Thermoelectric Generation Using Waste Heat in Steel Works , 2014, Journal of Electronic Materials.

[15]  Gang Chen,et al.  A Comprehensive Review of Heat Transfer in Thermoelectric Materials and Devices , 2014, 1401.0749.

[16]  Mei-Jiau Huang,et al.  A simulation study of automotive waste heat recovery using a thermoelectric power generator , 2013 .

[17]  Wei-Hsin Chen,et al.  Experimental study on thermoelectric modules for power generation at various operating conditions , 2012 .

[18]  Cheng-Ting Hsu,et al.  Experiments and simulations on low-temperature waste heat harvesting system by thermoelectric power generators , 2011 .

[19]  Xiaolong Gou,et al.  Modeling, experimental study and optimization on low-temperature waste heat thermoelectric generator system , 2010 .

[20]  Wei-Chin Chang,et al.  A mathematic model of thermoelectric module with applications on waste heat recovery from automobile engine , 2010 .

[21]  D. Astrain,et al.  Study of the influence of heat exchangers' thermal resistances on a thermoelectric generation system , 2010 .

[22]  Jianlin Yu,et al.  Experimental study on low-temperature waste heat thermoelectric generator , 2009 .

[23]  Jianlin Yu,et al.  A numerical model for thermoelectric generator with the parallel-plate heat exchanger , 2007 .

[24]  Brian T. Helenbrook,et al.  Testing of an automobile exhaust thermoelectric generator in a light truck , 2007 .

[25]  Saffa Riffat,et al.  Thermoelectrics: a review of present and potential applications , 2003 .

[26]  Andrea Montecucco,et al.  Combined heat and power system for stoves with thermoelectric generators , 2017 .

[27]  Srinath V. Ekkad,et al.  Numerical study on thermoelectric–hydraulic performance of a thermoelectric power generator with a plate-fin heat exchanger with longitudinal vortex generators , 2017 .

[28]  Chang Chung Yang,et al.  Modeling and simulation for the design of thermal-concentrated solar thermoelectric generator , 2014 .

[29]  George S. Nolas,et al.  Thermoelectrics: Basic Principles and New Materials Developments , 2001 .

[30]  David Michael Rowe,et al.  Thermoelectrics, an environmentally-friendly source of electrical power , 1999 .

[31]  Robert J. Moffat,et al.  Describing the Uncertainties in Experimental Results , 1988 .