Acoustic Approach in Converting Heat to Electricity

submitted by: RASEIBoulder
A promising approach in converting heat or waste heat to electricity is in using the thermoacoustic effect. When heat generates a temperature gradient along a stack of large-surface area material inside an acoustic resonator, an intense sound can be generated. This type of energy converter, which is a self-sustained oscillator, has been developed so that the sound can be converted inside the unit to electricity using a piezoelectric device. Such devices are simple, and they have essentially...