JAUE2014-009 Analysis of the electricity accumulation of Piezoelectric Energy Harvesting Floor by Pedestrian volume

Abstract

Recently as energy depletion goes on, alternative energy is increasingly in demand. Particularly efforts are underway to utilize energy by recognizing it as a subject of energy production rather than a subject of energy consumption. In response, studies on PEHF(Piezoelectric energy harvesting floor) that produces electricity by external vibration or pressure are in active progress. PEHF is characteristic in that electricity accumulation varies depending on the pedestrian volume. Unfortunately, only research regarding battery efficiency in PEHF is widely conducted on. There are hardly any research regarding system installation in structure yet.
 Thus in this study, electricity accumulation and pedestrian volume were measured with PEHF and CCTV installed at library entrance. Through the experiment, PEHF electricity accumulation values by pedestrian volume were compared and analyzed. The experiment results indicated that electricity accumulation was higher at the highest pedestrian density than at the lowest pedestrian density with significant deviation. Also the higher the pedestrian density, the higher the peak electricity accumulation. Therefore it is anticipated that when PEHF is installed within a building, the electricity accumulation would be higher if it is installed in an area with higher pedestrian density.