Experimental and theoretical analysis of a hybrid solar thermoelectric generator with forced convection cooling

Hybrid solar thermoelectric generators (HSTEGs) have garnered significant research attention recently due to their potential ability to cogenerate heat and electricity. In this paper, theoretical and experimental investigations of the electrical and thermal performance of a HSTEG system are reported. In order to validate the theoretical model, a laboratory scale HSTEG system (based on forced convection cooling) is developed. The HSTEG consists of six thermoelectric generator modules, an electrical heater, and a stainless steel cooling block. Our experimental analysis shows that the HSTEG is capable of producing a maximum electrical power output of 4.7 W, an electrical efficiency of 1.2% and thermal efficiency of 61% for an average temperature difference of 92 °C across the TEG modules with a heater power input of 382 W. These experimental results of the HSTEG system are found to be in good agreement with the theoretical prediction. This experimental/theoretical analysis can also serve as a guide for evaluating the performance of the HSTEG system with forced convection cooling.

[1]  Maria Telkes,et al.  Solar Thermoelectric Generators , 1954 .

[2]  V. Gnielinski.  New equations for heat and mass transfer in turbulent pipe and channel flow , 1976 .

[3]  M. M. Kaila,et al.  Solar thermoelectric generation using bismuth telluride alloys , 1980 .

[4]  J. Lienhard.  A heat transfer textbook , 1981 .

[5]  D. Infield,et al.  Design optimization of thermoelectric devices for solar power generation , 1998 .

[6]  R. Forristall,et al.  Heat Transfer Analysis and Modeling of a Parabolic Trough Solar Receiver Implemented in Engineering Equation Solver , 2003 .

[7]  Eckhard Lüpfert,et al.  Experimental Analysis of Overall Thermal Properties of Parabolic Trough Receivers , 2008 .

[8]  Eduardo Zarza,et al.  Parabolic-trough solar collectors and their applications , 2010 .

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

[10]  Hongwei Sun,et al.  Electricity Generation From a Compound Parabolic Concentrator Coupled to a Thermoelectric Module , 2010 .

[11]  Rajeev J. Ram,et al.  Solar Thermoelectric Generator for Micropower Applications , 2009, Journal of Electronic Materials.

[12]  Jie Ji,et al.  Parametrical analysis of the design and performance of a solar heat pipe thermoelectric generator unit , 2011 .

[13]  Evelyn N. Wang,et al.  Modeling and Optimization of Hybrid Solar Thermoelectric Systems with Thermosyphons , 2011 .

[14]  Gang Chen,et al.  High-performance flat-panel solar thermoelectric generators with high thermal concentration. , 2011, Nature materials.

[15]  Aliakbar Akbarzadeh,et al.  Electric Power Generation from Thermoelectric Cells Using a Solar Dish Concentrator , 2011 .

[16]  M. M. Rahman,et al.  Heat transfer analysis of parabolic trough solar receiver , 2011 .

[17]  Anke Weidenkaff,et al.  A solar cavity-receiver packed with an array of thermoelectric converter modules , 2011 .

[18]  S. Tanemura,et al.  Feasibility Study on the Use of a Solar Thermoelectric Cogenerator Comprising a Thermoelectric Module and Evacuated Tubular Collector with Parabolic Trough Concentrator , 2012, Journal of Electronic Materials.

[19]  M. Eswaramoorthy,et al.  Experimental Study on Solar Parabolic Dish Thermoelectric Generator , 2013 .

[20]  Gang Xu,et al.  Efficient, low-cost solar thermoelectric cogenerators comprising evacuated tubular solar collectors and thermoelectric modules , 2013 .

[21]  W. Beckman,et al.  Solar Engineering of Thermal Processes: Duffie/Solar Engineering 4e , 2013 .

[22]  Y. Vorobiev,et al.  Investigation of Solar Hybrid Electric/Thermal System with Radiation Concentrator and Thermoelectric Generator , 2013 .

[23]  Pendar Samadian,et al.  Cogeneration solar system using thermoelectric module and fresnel lens , 2014 .

[24]  Chao Li,et al.  Effects of environmental factors on the conversion efficiency of solar thermoelectric co-generators comprising parabola trough collectors and thermoelectric modules without evacuated tubular collector , 2014 .

[25]  Robert A. Taylor,et al.  Recent advances in thermoelectric materials and solar thermoelectric generators – a critical review , 2014 .

[26]  S. Said,et al.  A review on thermoelectric renewable energy: Principle parameters that affect their performance , 2014 .

[27]  Jiangming Kan,et al.  Behavior of a thermoelectric power generation device based on solar irradiation and the earth’s surface-air temperature difference , 2015 .

[28]  Frédéric Lesage,et al.  Solar thermoelectric generator performance relative to air speed , 2015 .

[29]  Parthiv Kurup,et al.  Parabolic Trough Collector Cost Update for the System Advisor Model (SAM) , 2015 .

[30]  Ali Ekber Özdemir,et al.  The experimental design of solar heating thermoelectric generator with wind cooling chimney , 2015 .

[31]  Yuehong Su,et al.  Numerical investigation of heat pipe-based photovoltaic–thermoelectric generator (HP-PV/TEG) hybrid system , 2016 .

[32]  Evangelos Hristoforou,et al.  Experimental analysis and performance evaluation of a tandem photovoltaic–thermoelectric hybrid system , 2016 .

[33]  Robert A. Taylor,et al.  Performance analysis of a hybrid solar thermoelectric generator , 2016 .

[34]  Robert A. Taylor,et al.  Energy concentration limits in solar thermal heating applications , 2016 .