Simulation and Optimization of Perovskite Type Micro Thermoelectric Generator
Jeyashree Yesuraj, Vimala Juliet Ashokan, Sukhi Yesuraj and Rebecca Shirly Harrison Christley
DOI : 10.3844/ajassp.2016.1277.1289
American Journal of Applied Sciences
Volume 13, Issue 11
In this study the thermoelectric properties of perovskite type Ca-Mn-O3 compounds are estimated for the operating range of 850-1150 K. The optimization of design module for maximum power output is obtained using the analytical expression for power of Thermoelectric Generator (TEG). For the optimum length of 1.4 Î¼m and with a cross sectional area of 0.3×0.3 Î¼m the power obtained is 4.635 nW. For the same optimum length of 1.4 Î¼m when the cross sectional area is increased to 0.6×0.6 Î¼m the power obtained is 18.54 nW. A bridge type micro TEG (Î¼TEG) with two thermo couples in series and four thermocouples in parallel are simulated and the temperature and voltage distribution obtained. The variation of power density for varying the gap length is analyzed. The calculated power density is 2.75 mW/(cm2K2) for optimum length of 1.4 Î¼m with a gap length of 0.3 Î¼m and cross sectional area of 0.6×0.6 Î¼m. The calculated power density is increased to 4.0748 mW/(cm2K2) for the same optimum length of 1.4 Î¼m when the gap length is 0.1 Î¼m and with the same cross sectional area of 0.6×0.6 Î¼m. To power up a 75W LED street light the required number of devices connected in series is 322 and in parallel is 12,658228 with the impedance matching between the micro thermoelectric generator and the load.
© 2016 Jeyashree Yesuraj, Vimala Juliet Ashokan, Sukhi Yesuraj and Rebecca Shirly Harrison Christley. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.