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Title: An analysis of lead-free (Bi{sub 0.5}Na{sub 0.5}){sub 0.915}-(Bi{sub 0.5}K{sub 0.5}){sub 0.05}Ba{sub 0.02}Sr{sub 0.015}TiO{sub 3} ceramic for efficient refrigeration and thermal energy harvesting

Abstract

This article demonstrates the colossal energy harvesting capability of a lead-free (Bi{sub 0.5}Na{sub 0.5}){sub 0.915}-(Bi{sub 0.5}K{sub 0.5}){sub 0.05}Ba{sub 0.02}Sr{sub 0.015}TiO{sub 3} ceramic using the Olsen cycle. The maximum harvestable energy density estimated for this system is found to be 1523 J/L (1523 kJ/m{sup 3}) where the results are presented for extreme ambient conditions of 20–160 °C and electric fields of 0.1–4 MV/m. This estimated energy density is 1.7 times higher than the maximum reported to date for the lanthanum-doped lead zirconate titanate (thin film) system. Moreover, this study introduces a generalized and effective solid state refrigeration cycle in contrast to the ferroelectric Ericson refrigeration cycle. The cycle is based on a temperature induced polarization change on application of an unipolar electric field to ferroelectric ceramics.

Authors:
;  [1];  [2]
  1. School of Engineering, Indian Institute of Technology Mandi, Himachal Pradesh 175 001 (India)
  2. Department of Mechanical Engineering, Materials Research Centre, University of Bath, Bath BA2 7AY (United Kingdom)
Publication Date:
OSTI Identifier:
22271305
Resource Type:
Journal Article
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 115; Journal Issue: 1; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-8979
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE; BARIUM COMPOUNDS; BISMUTH COMPOUNDS; CERAMICS; DOPED MATERIALS; ELECTRIC FIELDS; ENERGY DENSITY; FERROELECTRIC MATERIALS; LANTHANUM COMPOUNDS; POLARIZATION; PZT; REFRIGERATION; SODIUM COMPOUNDS; SOLIDS; THIN FILMS

Citation Formats

Vats, Gaurav, Vaish, Rahul, E-mail: rahul@iitmandi.ac.in, and Bowen, Chris R.. An analysis of lead-free (Bi{sub 0.5}Na{sub 0.5}){sub 0.915}-(Bi{sub 0.5}K{sub 0.5}){sub 0.05}Ba{sub 0.02}Sr{sub 0.015}TiO{sub 3} ceramic for efficient refrigeration and thermal energy harvesting. United States: N. p., 2014. Web. doi:10.1063/1.4861031.
Vats, Gaurav, Vaish, Rahul, E-mail: rahul@iitmandi.ac.in, & Bowen, Chris R.. An analysis of lead-free (Bi{sub 0.5}Na{sub 0.5}){sub 0.915}-(Bi{sub 0.5}K{sub 0.5}){sub 0.05}Ba{sub 0.02}Sr{sub 0.015}TiO{sub 3} ceramic for efficient refrigeration and thermal energy harvesting. United States. doi:10.1063/1.4861031.
Vats, Gaurav, Vaish, Rahul, E-mail: rahul@iitmandi.ac.in, and Bowen, Chris R.. Tue . "An analysis of lead-free (Bi{sub 0.5}Na{sub 0.5}){sub 0.915}-(Bi{sub 0.5}K{sub 0.5}){sub 0.05}Ba{sub 0.02}Sr{sub 0.015}TiO{sub 3} ceramic for efficient refrigeration and thermal energy harvesting". United States. doi:10.1063/1.4861031.
@article{osti_22271305,
title = {An analysis of lead-free (Bi{sub 0.5}Na{sub 0.5}){sub 0.915}-(Bi{sub 0.5}K{sub 0.5}){sub 0.05}Ba{sub 0.02}Sr{sub 0.015}TiO{sub 3} ceramic for efficient refrigeration and thermal energy harvesting},
author = {Vats, Gaurav and Vaish, Rahul, E-mail: rahul@iitmandi.ac.in and Bowen, Chris R.},
abstractNote = {This article demonstrates the colossal energy harvesting capability of a lead-free (Bi{sub 0.5}Na{sub 0.5}){sub 0.915}-(Bi{sub 0.5}K{sub 0.5}){sub 0.05}Ba{sub 0.02}Sr{sub 0.015}TiO{sub 3} ceramic using the Olsen cycle. The maximum harvestable energy density estimated for this system is found to be 1523 J/L (1523 kJ/m{sup 3}) where the results are presented for extreme ambient conditions of 20–160 °C and electric fields of 0.1–4 MV/m. This estimated energy density is 1.7 times higher than the maximum reported to date for the lanthanum-doped lead zirconate titanate (thin film) system. Moreover, this study introduces a generalized and effective solid state refrigeration cycle in contrast to the ferroelectric Ericson refrigeration cycle. The cycle is based on a temperature induced polarization change on application of an unipolar electric field to ferroelectric ceramics.},
doi = {10.1063/1.4861031},
journal = {Journal of Applied Physics},
issn = {0021-8979},
number = 1,
volume = 115,
place = {United States},
year = {2014},
month = {1}
}