Abstract
This study is based on a numerical demonstration of energy and exergy analyses of a solar energy harvesting system based on the pyroelectric effect. The performance of a tryglycine sulfate (TGS) single crystal was investigated mathematically in the present study. The power output was optimized for different load resistances and load capacitances. The maximum power output was obtained as 0.95 μW across a load resistance of 40 MΩ and a 4.7 μF load capacitor. Further exergy analysis was performed for a pyroelectric energy harvesting system. Maximum values for electrical and thermal exergies obtained are 0.12 μW and 12 mW, respectively. Furthermore the maximum obtained electrical and thermal exergy efficiencies are 0.000 037% and 3.6%, respectively. The average thermal exergy efficiency is 2.15% for a cycle frequency of 0.014 Hz.
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