EMAIL THIS PAGE TO A FRIEND

Ultrasonics sonochemistry

Combined effects of phase-shift and power distribution on efficiency of dual-high-frequency sonochemistry.


PMID 29137731

Abstract

In an effort to increase the efficiency of sonochemical reactors, this study investigates a single-source, dual-high-frequency ultrasound reactor. Experiments were conducted with a variety of piezoelectric crystals and reactor components, and for each reactor design a range of power distributions and phase shifts between the two frequencies were evaluated. Certain dual-frequency configurations produced up to a threefold increase in sonochemical efficiency, while others yeilded no improvement over a single frequency. These results led to two significant findings. First, phase-shift had a strong effect on sonochemical efficiency for both harmonic and non-harmonic frequency combinations. Second, the most efficient dual-harmonic-frequency waveforms had a single peak per half-cycle, rather than two unique peaks. If dual-frequency, single-source ultrasound reactors are to become more efficient they must be able to consistently control the phase angle of and power distribution between harmonic waves to create an optimal waveform.

Related Materials

Product #

Image

Description

Molecular Formula

Add to Cart

P1088
Potassium hydrogen phthalate, BioXtra, ≥99.95%
C8H5KO4