Title :
Thermoelectric power generator based on a ferroelectric material combined with a bimetal thermostat
Author :
Saito, Takashi ; Kawai, Yusuke ; Ono, Takahito
Author_Institution :
Grad. Sch. of Eng., Tohoku Univ., Sendai, Japan
Abstract :
A novel thermoelectric energy generator, which is based on pyroelectric power generation caused by periodic temperature change of a ferroelectric material, is developed. A bulk lead-zirconate-titanate (PZT) ceramic is attached on a bimetal disk. This bimetal disk is placed between heat and cold sources, which causes reciprocatory motion between the heat and cold sources. The temperature of the PZT ceramic is periodically changed due to contact heat transfer, which produces pyroelectric current. Maximum output power of 1.1 nW is obtained with the reciprocation frequency of 1.7 Hz when temperature difference is 247°C.
Keywords :
ferroelectric materials; heat transfer; thermoelectric conversion; thermostats; PZT; PZT ceramic; bimetal disk; bimetal thermostat; cold sources; ferroelectric material; frequency 1.7 Hz; heat sources; heat transfer; lead-zirconate-titanate; periodic temperature change; power 1.1 nW; pyroelectric current; pyroelectric power generation; reciprocation frequency; reciprocatory motion; temperature 247 C; thermoelectric power generator; Generators; Heat engines; Heating; Materials; Power generation; Temperature; Temperature measurement; Bimaterial structure; PZT; Piezoelectricity; Pyroelectricity; Thermoelectric generation; thermal energy harvesting;
Conference_Titel :
Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS & EUROSENSORS XXVII), 2013 Transducers & Eurosensors XXVII: The 17th International Conference on
Conference_Location :
Barcelona
DOI :
10.1109/Transducers.2013.6627260
