Predicting performance of thermal-electrical cycles in pyroelectric power generation

Autor:	Ichiro Murayama, Noboru Yamada, Masahiro Ejima, Masatoshi Takeda, Yoon-Ho Kim, Masaaki Baba, Hirohisa Tanaka, T. Fukuda, Tohru Sekino
Rok vydání:	2020
Předmět:	Materials science Electricity generation Physics and Astronomy (miscellaneous) Nuclear engineering Thermal General Engineering General Physics and Astronomy Predicting performance Pyroelectricity
Zdroj:	Japanese Journal of Applied Physics. 59:094501
ISSN:	1347-4065 0021-4922
DOI:	10.35848/1347-4065/aba9a8
Popis:	A method is proposed to predict the power generation performance of a pyroelectric generator (PEG) for waste-heat recovery systems in which an external electric field is applied to a ferroelectric material in synchrony with rapid temperature changes. The net generated energy density N D of the PEG at any temperature and electric field is predicted for two thermal-electrical cycles (including the Olsen cycle). This is done by approximating the dependence of the polarization density on temperature and electric field using hysteresis loop measurements. The difference between the predicted and measured values of N D was less than 15%. This method could be used to screen promising candidate materials for PEGs.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::537224a659981b390f138011ebf7f881 https://doi.org/10.35848/1347-4065/aba9a8 Zobrazit plný text záznamu