Pyroelectric energy harvesting

[gagangc]

Hi everyone,

Energy harvesting from pyroelectric materials is done by providing temperature fluctuations and electric field.Frequency of electric field applied has a great effect on amount of energy harvested.But my doubt is,when making a real device to harvest energy from waste heat ,temperature fluctuations can be provided but from where will we get electric fields of required frequency??

Thanks in advance.

 

[Usama Siddiqui]

in pyroelectric sensors the internal crystalline structure is changed due to temperature,this change generates a temporary potential . i don get your idea of frequency ?

 

[gagangc]

Hi Usama Siddiqui,

Thanks for your reply.I was referring to ac electric field frequency we apply in order to enhance the harvested
energy by pyroelectric effect.This link give complete idea -
https://www.hindawi.com/journals/smr/2012/160956/

Thanks again.