000223574 001__ 223574
000223574 005__ 20190812205931.0
000223574 037__ $$aCONF
000223574 245__ $$aAcoustic energy harvesting using electrochemical double layor capacitors: Technical feasibility and performance assessment
000223574 269__ $$a2016
000223574 260__ $$c2016
000223574 336__ $$aConference Papers
000223574 520__ $$aThis paper describes a first prototype harvesting the acoustic energy using electrochemical storage devices. In particular, the harvesting system is composed by an Electrochemical Double Layer Capacitors (EDLC) suitably coupled with an electroacoustic absorber by means of an AC/DC converter. The aims of the proposed work are i) to assess the technical feasibility to compensate the decay voltage via an acoustic harvester; and ii) to evaluate how such compensation can improve the performance of the targeted EDLC. Concerning the first aim, the experimental results show that the required sound pressures to charge the EDLC up to its nominal voltage range from 118 dB up to 122 dB (re. 20 μPa). The EDLC charging times range from couple of hours up to several hours. The charging powers range from few mW up to several tens of mW and the energy efficiency of the whole system ranges from 5% up to 35%. Concerning the second aim of the paper, further experimental results illustrate a non-negligible improvement of the capability of the EDLC to deliver high-pulsed currents. In particular, after compensating the EDLC decay voltage via the proposed acoustic harvester, the rise time required to deliver a high pulse current is even 170% lower than the one obtained without any previous decay voltage compensation. The associated current peak value and root mean square value are 20 % higher.
000223574 6531_ $$aacoustic energy harvesting
000223574 6531_ $$asupercapacitor modeling
000223574 6531_ $$aredistribution phenomenon
000223574 6531_ $$aresidual charge
000223574 6531_ $$adynamic supercapacitors behavior
000223574 700__ $$0246334$$g223603$$aTorregrossa, Dimitri
000223574 700__ $$aKarkar, Sami
000223574 700__ $$0246640$$g195222$$aRivet, Etienne
000223574 700__ $$g157878$$aLissek, Hervé$$0242771
000223574 700__ $$aPaolone, Mario$$g156731$$0245463
000223574 7112_ $$dOctober 24-27, 2016$$cFlorence, Italy$$aIECON 2016 - 42nd Annual Conference of the IEEE Industrial Electronics Society
000223574 909C0 $$xU10380$$pLTS2$$0252392
000223574 909C0 $$xU12494$$pDESL$$0252423
000223574 909CO $$pconf$$pSTI$$ooai:infoscience.tind.io:223574
000223574 917Z8 $$x195222
000223574 937__ $$aEPFL-CONF-223574
000223574 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000223574 980__ $$aCONF