Title :
Nonlinear pyroelectric energy harvesting from relaxor single crystals
Author :
Khodayari, Akram ; Pruvost, Sebastien ; Sebald, Gael ; Guyomar, Daniel ; Mohammadi, Saber
Author_Institution :
LGEF Lab. de Genie Electr. et Ferroelectricite, Univ. de Lyon, Villeurbanne
fDate :
4/1/2009 12:00:00 AM
Abstract :
Energy harvesting from temperature variations in a Pb(Zn1/3Nb2/3)0.955Ti0.045O3 single crystal was studied and evaluated using the Ericsson thermodynamic cycle. The efficiency of this cycle related to Carnot cycle is 100 times higher than direct pyroelectric energy harvesting, and it can be as high as 5.5% for a 10degC temperature variation and 2 kV/mm electric field. The amount of harvested energy for a 60degC temperature variation and 2 kV/mm electric field is 242.7 mJmiddotcm-3. The influence of ferroelectric phase transitions on the energy harvesting performance is discussed and illustrated with experimental results.
Keywords :
Carnot cycle; energy harvesting; ferroelectric transitions; lead compounds; pyroelectricity; relaxor ferroelectrics; thermodynamics; Carnot cycle; Ericsson thermodynamic cycle; PbZnO3NbO3TiO3; electric field; ferroelectric phase transitions; nonlinear pyroelectric energy harvesting; relaxor single crystals; Boundary conditions; Crystals; Ferroelectric materials; Heating; Mechanical factors; Polarization; Pyroelectricity; Temperature; Thermodynamics; Transistors; Ceramics; Computer-Aided Design; Crystallization; Electric Power Supplies; Electrochemistry; Energy Transfer; Equipment Design; Equipment Failure Analysis; Hot Temperature; Micro-Electrical-Mechanical Systems; Nonlinear Dynamics; Reproducibility of Results; Sensitivity and Specificity; Transducers;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
DOI :
10.1109/TUFFC.2009.1092
